Export & Codecs

AV1 vs H.264 [2026]: Smaller Files, 3 Conditions

AV1 vs H.264 [2026]: Smaller Files, 3 Conditions

H.264 is still the safe export default in November 2026, and AV1 is the better choice only when the destination clearly accepts it. AV1 makes smaller files at comparable quality, but it costs more encoding time and not every editor, platform or screen takes it. Netflix said AV1 now carries more than one-third of its global on-demand streaming, according to a September 9, 2026 release from the Alliance for Open Media (AOMedia). That is a Netflix-reported figure, not an audited market estimate, but it shows where the format stands.

This comparison is written for people who export videos, not for people who run streaming services. If you ship YouTube uploads, stream intros, client deliverables or short logo stings, the question is simple. Do you export H.264, AV1, or both? The sections below start with a specs table, then cover compression, speed, hardware, licensing, real examples, a migration path and a verdict.

One scope note. HEVC sits between the two codecs on efficiency and support, and we cover that pairing separately in our H.264 vs H.265 comparison. Here HEVC appears only where it helps explain a choice.

AV1 vs H.264 at a glance: the specs table

The table comes first because most readers need the shape of the trade before the detail. Rows with a number or a date come from a vendor or standards page. Rows without numbers describe the practical difference and carry no invented figures.

SpecAV1H.264 (AVC)
StewardAlliance for Open Media (AOMedia)Standard with a patent pool licensed through Via Licensing Alliance
Licensing modelRoyalty-free under AOMedia’s patent policyPatent pool, fees aimed at distributors and implementers
Compression efficiencyStronger, the efficiency-oriented choiceWeaker than newer codecs
Encoding costHeavier, with higher processing ratios in Tencent Cloud’s serviceLightest to encode
Cloud transcoding priceBilled at the H.265 general transcoding rate on Tencent CloudLowest rate in the same published tables
Main open-source encodersSVT-AV1, libaomx264 through FFmpeg’s libx264
Constant-quality controlCRF in SVT-AV1, range extended to 70 in the 4.0 series, with quarter-step valuesCRF in x264, on a different scale
Web platform statusW3C WebCodecs registration draft dated October 13, 2026Long-standing default for browsers, phones and cameras
Typical containerMP4, WebM or MKVMP4, usually with AAC audio
Editing interchangeNot universal across editorsBroadly accepted
Upload safetyFine where the platform says it accepts AV1Safe default when acceptance is unknown
SuccessorAV2 released in 2026, about 30% more efficient by AOMedia’s own claimNo new edition confirmed in 2026

Checked November 8, 2026 against the W3C AV1 WebCodecs registration and AOMedia’s AV1 and AV2 pages. The W3C document is a dated draft note, so treat it as a sign of direction and not as a finished standard.

Read the table as a decision aid. Rows one to three explain why AV1 exists. Rows four, five and ten explain why H.264 survives. The rest of this article spends its time on the second group, because that is where creators get burned. A smaller file is no use if your editor cannot import it, your platform re-encodes it badly or your viewer’s phone stutters through playback.

The efficiency gap is real, but it is also the least interesting row. Any modern codec beats H.264 on bits per pixel. What separates a good export plan from a bad one is the cost of getting that saving. For AV1 the cost is encoding time, a narrower set of compatible tools and a few unresolved platform questions. For H.264 the cost is larger files and a licensing structure that mostly bites companies that distribute video at scale, not people who upload it.

What changed in 2026: AV2, SVT-AV1 4.x and cheaper AV1 encoding

The biggest change this year is that AV1 is no longer the newest AOMedia codec. AOMedia released the AV2 specification in mid-2026, and on October 22, 2026 it reported “rapid AV2 adoption” four months after publication. It says AV2 delivers about 30% greater compression efficiency than AV1 and targets multi-stream video, real-time communications, immersive applications, higher frame rates and enhanced HDR.

That does not make AV1 obsolete for creators. AOMedia itself still describes AV1 as an active, widely deployed codec across streaming services, browsers, mobile devices, operating systems, communications platforms and consumer electronics. AV2 is early. Tooling, hardware decoders and platform acceptance take years to arrive. If you export for viewers today, AV1 is the codec to evaluate and AV2 is something to watch.

The encoder side moved too. SVT-AV1, the open-source encoder maintained inside the AOMedia project, reached its 4.0 major release in 2026. The release notes describe backward-incompatible API changes, a CRF range extended to 70, quarter-step CRF values, custom global logging, per-frame PSNR and SSIM calculation and large improvements for still images. Package listings reportedly show a 4.3.0 build in early November, though we could not confirm that against a canonical upstream release page, so check the project’s release list before you pin a version.

FFmpeg, which most editors and converters use under the hood, kept shipping. FFmpeg 8.1 “Hoare” is listed on ffmpeg.org as a minor release, and the project’s release listings now show 9.0.2 and 8.1.3 as the newest builds, with the 8.1 and 8.0 branches still maintained. One caution from the project’s issue tracker: an open report says 9.0.1 and 9.0.2 can duplicate segments and corrupt timestamps when you seek in fragmented MP4 DASH manifests. That matters if you cut streaming ladders by hand, and it does not affect a plain MP4 export.

Cloud encoding got cheaper for AV1 as well. Bitmovin announced its Encoder V3 and said it cut managed-cloud AV1 cost multipliers by 50%, bringing AV1 pricing in line with HEVC. The company also claimed 66% lower encoding time at equal quality and three times the throughput of its earlier codec implementation. Those are vendor claims for one product, so read them as a direction, not a guarantee for your own files.

The web side matured on paper. On October 13, 2026 the W3C published a dated draft that registers AV1 in WebCodecs, with codec strings, encoded-chunk handling, decoder descriptions and encoder configuration extensions. For a creator the practical meaning is that browser-based editors and web tools get a standard way to talk about AV1, which is a prerequisite for AV1 export inside the browser.

Compression and quality: what AV1 actually buys you

AV1 gives you a smaller file at the same visual quality, or better quality at the same file size. That is the whole pitch, and the sources we checked agree on the direction. H.264 is less compression-efficient than newer codecs, and AV1 is the more modern, efficiency-oriented choice where the platform, hardware and workflow support it.

This article does not print a single bitrate-saving percentage as settled fact. The reason is practical. Published AV1 savings vary with the encoder, the preset, the content and the quality metric. A talking-head tutorial with a static background behaves nothing like a gameplay capture with fast motion and particle effects. A grainy film look behaves differently again. Any number you read without a test clip attached is a rough guide, not a promise for your footage.

Why the same codec gives different savings

Three variables move the result. First, the encoder. SVT-AV1 and libaom are both AV1 encoders, and both are tunable, so “AV1” is not one fixed quality level. Second, the preset. Slower presets search harder for savings. Third, the rate control. If you copy an H.264 bitrate into an AV1 export, you waste the efficiency advantage. Constant-quality modes such as CRF let the encoder decide how many bits each scene needs, which is where AV1 earns its keep.

The SVT-AV1 4.0 changes matter here. A CRF range stretched to 70 and quarter-step increments give you finer control over the quality-to-size trade. That sounds like a minor tuning detail until you try to hit a platform’s file-size cap, where a half-step of CRF can be the difference between a file that uploads and one that does not.

Where the file-size saving shows up in daily work

The saving is most useful in three places. Archives, where you keep a finished master for years and storage adds up. Delivery to clients over slow links, where a smaller file shortens the wait. And streaming ladders, where bandwidth is the main cost. It is least useful for a 6-second intro sting, where the file is already tiny and the extra encoding time outweighs the saving. For that case our guide on how to reduce video file size covers the simpler levers first.

One more point on quality. AV1 handles flat gradients, such as sky, studio backdrops and animated titles, better than a low-bitrate H.264 file, which tends to show banding. That helps motion graphics and logo animation, where smooth color fills are the main content. Exporting in 10-bit color helps further, because it gives gradients more steps to work with. But a hardware AV1 encoder on a fast preset can look worse than a carefully tuned x264 slow export. Efficiency is a property of the whole setup, not of the codec name.

Benchmarks and adoption data from four sources

Head-to-head bitrate tests change with every encoder release, so this section leans on adoption and efficiency data that has a named source and a date. Together they answer a more useful question than “how many percent smaller”. They show how much of the industry has already moved.

SourceWhat it measuredResultHow to read it
Bitmovin 8th Video Developer Report (2024-2025)Codecs used for live encodingNot listedFigures not confirmed here
Bitmovin 8th Video Developer Report (2024-2025)Codecs used for VOD encodingNot listedSame split for on-demand
Bitmovin 7th Video Developer Report (2023-2024)AV1 in VOD encoding8% supported AV1, 32% expected to within 12 monthsIntent ran far ahead of practice
AOMedia, October 22, 2026AV2 versus AV1 efficiencyAbout 30% greater compression efficiencyAOMedia’s own claim, not an independent test

Two more data points sit outside the table because each comes from a single report. Netflix said AV1 exceeded one-third of its global VOD streaming, as AOMedia reproduced it on September 9, 2026. AOMedia also states that more than 90% of YouTube’s catalog, weighted by watch time, was available in AV1 as of March 19, 2026.

Put those side by side and a pattern appears. On the delivery side, the largest services have moved a big share of their viewing hours to AV1, because they pay for bandwidth and control both ends of the pipe. On the file side, almost everything still sits in H.264, because files are made by cameras, phones and editors, and those tools standardized on H.264 long ago.

That split is the key to the whole comparison. A creator sits on the file side. You export once and upload. The platform then decides which codecs viewers see. YouTube can serve AV1 to compatible viewers even if you uploaded an H.264 file, so your export choice does not have to match the codec your audience receives. The practical effect is that uploading a high-quality H.264 master gets you most of the viewer-side benefit without any AV1 workflow on your end.

Speed numbers follow the same logic. Bitmovin’s claimed 66% cut in encoding time with Encoder V3, and SVT-AV1 4.0’s release-note claims of a 5 to 8 percent BD-rate improvement at similar complexity and 10 to 25 percent speed gains in selected random-access presets, show that AV1 encoders improve every year. They also show how far AV1 still has to go. Nobody improves a metric by two thirds unless the baseline was slow.

What industry surveys say about AV1 and H.264

Survey data is the usual way to compare what engineers plan with what they ship. Bitmovin’s 8th Video Developer Report, covering 2024 to 2025, surveyed video professionals, and Bitmovin reported on how both codecs are used, but its exact live and on-demand percentages are not confirmed here.

Those figures are from a 2024-2025 report, so they describe a year or more of lag behind today. They still explain a lot. A codec used by roughly one in eight professionals is not the default of any tool chain. It is a specialist choice that grows as hardware spreads. The earlier 7th report, covering 2023 to 2024, showed the planning side. As Streaming Media’s codec market review relays it, “For VOD encoding, 8% of respondents supported AV1 and 32% anticipated supporting it within 12 months.”

Put those two reports together and you get a clear reading. In the 2023-2024 survey, 8% supported AV1 for VOD. In the 2024-2025 survey, 13% used it. Whether you treat those as the same measure or not, the direction is up, and the gap between the 32% who planned to support it and the 13% who used it shows how slow real adoption is. Expect the same lag in your own tools.

What the surveys leave out is just as telling. They count professional encoding teams, not YouTubers and streamers. Creators mostly decide a codec once, inside an editor’s export preset, and then never touch it. That means your effective adoption curve follows your editor’s release schedule more than the industry’s, so the single most useful habit is to read your editor’s release notes each time you update.

Encoding speed and hardware: the price of smaller files

AV1 costs more to encode than H.264, and every data point we found says so. Tencent Cloud’s published tables list AV1 with higher processing ratios than H.264, and those ratios indicate that AV1 is computationally more expensive in its service configuration. In the same published tables H.264 is the lower-cost option, while AV1 costs considerably more.

On your own machine the same cost shows up as render time. A software AV1 export at a slow preset can take many times longer than an x264 export of the same timeline. That is fine for an overnight archive render and painful for a same-day client revision. The workaround is hardware encoding, where a GPU encoder takes over the work.

Hardware encode and decode

Recent GPUs from the major makers include dedicated AV1 encoders, and that is what turns AV1 from an overnight job into something you can run during a stream. Check your exact card’s spec page before you plan around it, because support depends on the generation and the driver. Hardware encoders favor speed, so expect somewhat lower efficiency than a slow software encode. That trade is acceptable for live capture and unacceptable if you want the smallest possible archive.

Decode matters just as much, because viewers need to play what you make. Hardware decoding keeps spreading. A report from October 13, 2026 said Apple’s new Apple TV 4K includes a dedicated AV1 decoder, and on October 22, 2026 Sunell announced AV1-enabled network cameras. The Apple item is a single report, so check the vendor page if you rely on it. The trend still points one way. Each new device generation adds AV1 decode, which shrinks the group of viewers who must fall back to H.264.

Older hardware is the catch. A laptop or phone without AV1 decode falls back to the CPU, which can drain the battery and drop frames at higher resolutions. For a public video, that fallback is the platform’s problem, because it will serve a different rendition. For a file you hand to a client, it becomes your problem, because they will open it in whatever player they have. That alone is a strong reason to deliver H.264 MP4 files to clients by default.

Software encoders in practice

SVT-AV1 is the encoder most creators meet, because FFmpeg-based tools expose it and AOMedia keeps it active. It is open-source software and has no subscription or licence price. The libaom reference encoder also sits under the AOMedia umbrella. For H.264 the equivalent is x264. Whichever you use, update your build regularly rather than leave a years-old binary in place.

Playback and browser support: who can actually watch it

H.264 plays everywhere. Browsers, phones, cameras, editing software and streaming systems support it, and it normally travels in an MP4 container with AAC audio. That is why every source we checked lands on the same practical line: H.264 remains the safer compatibility default, and the available sources do not establish universal AV1 support across editing, playback and upload workflows.

AV1 support is broad and still uneven. The October 13, 2026 W3C draft registers AV1 for WebCodecs, which gives web apps a standard hook. Microsoft’s developer notes for Windows apps, per its Learn changelog, reportedly list an AV1 encoder operating-mode codec API in Windows SDK build 10.0.28000.2705 from August 2026. Both items show platform vendors investing in AV1 on the creator-tool side, though neither means every app on those platforms now exports AV1.

Container choice changes the answer

Codec and container are separate decisions. AV1 can live in MP4, WebM or MKV, and H.264 almost always lives in MP4. If you want to know which wrapper fits a web embed, our WebM vs MP4 comparison explains the difference. The short version: MP4 with H.264 plays in more places, and WebM with AV1 or VP9 suits web delivery you control.

Compatibility checklist for any AV1 file you plan to share:

  • Open the file in at least one browser and one desktop player before you send it.
  • Test on the oldest phone your audience is likely to use.
  • Keep an H.264 MP4 copy on hand for anyone whose device stutters.
  • Confirm the upload platform lists AV1 in its own help page, not in a forum thread.

The last point deserves emphasis. Secondary sources claim that YouTube’s live-encoder guidance accepts AV1 over RTMP and RTMPS, but we could not confirm that against a YouTube document, so treat it as unconfirmed. For Twitch, read the current ingest page before you change your OBS output codec. The safe assumption for any live platform you have not verified is H.264.

Editors, OBS and platforms: where AV1 fits your workflow

Your editor decides what you can export, and editors move slower than codecs. H.264 and HEVC appear in every major editor’s export dialog. AV1 export appears in some builds, depends on your operating system and GPU, and sometimes needs a separate encoder install. Open your editor’s export dropdown and look. If AV1 is listed, check whether it uses a hardware encoder, a software encoder or both.

AV1 import is the sharper edge. Timeline playback of AV1 clips can stutter on machines without AV1 decode, and some editors refuse the files. For that reason, use H.264 or a proper intermediate for source clips and keep AV1 for the final delivery step. If you work with camera files, remember that containers matter as well, and our MP4 vs MOV comparison covers the wrapper side of the same decision.

Screen recording and OBS

OBS shows whichever AV1 encoders your GPU and build support in its encoder dropdown. If your card has a hardware AV1 encoder, you can record to a much smaller file than H.264 at similar quality, which helps when you capture hours of gameplay. If you stream, remember that the platform sets the ingest codec. Record in AV1 if you like, but stream in H.264 until your platform’s own documentation says otherwise.

Render settings

A starting point for a finished channel intro or logo sting. Match the resolution and frame rate to your timeline, and only change the codec per destination.

DestinationResolutionFrame rateLengthExport format
YouTube uploadSame as timelineSame as timelineUnchangedH.264 MP4, high bitrate
Client deliverySame as timelineSame as timelineUnchangedH.264 MP4 plus optional AV1 copy
Web embed you controlSame as timelineSame as timelineUnchangedAV1 in WebM or MP4, H.264 fallback
Archive masterSource sizeSource rateFullVisually lossless AV1 or an intermediate
Stream overlay clip in OBSCanvas sizeCanvas rateLoop lengthH.264 MP4 or a transparent-capable format

From the Vipid archive: the Vipid intro themes list their resolution, length and frame rate, which are the same three numbers you need to settle before you pick a codec.

Licensing and pricing: royalty-free versus the patent pool

For a creator exporting files, neither codec has a price tag. No standalone official price for exporting H.264 was confirmed, and AV1 has none either. The money question matters when you build a product or a service around video. That is when the difference between a royalty-free codec and a patent pool starts to count.

AOMedia says AV1 and AV2 run under its open, royalty-free patent policy. That statement does not erase every cost. You may still pay for hardware, an encoding service or support. H.264 sits under the patent pool that Via Licensing Alliance administers, and Via published a new structure for streaming licences beginning in 2026. Reported annual list fees run from $4.5 million for the largest tier down to $100,000 for the smallest category. The tiers apply to previously unlicensed implementers who seek a licence from 2026 onward, and existing licensees keep their pre-2026 terms.

ItemWhat it coversPublished priceChecked
AV1 codecUsing the formatNo official price, AOMedia royalty-free patent policyNov 8, 2026
SVT-AV1Open-source encoderNo subscription or licence price confirmedNov 8, 2026
Via AVC streaming licence, top tierNew licensees from 2026$4.5 million per yearNov 8, 2026
Via AVC streaming licence, tier 2New licensees from 2026Not listedNov 8, 2026
Via AVC streaming licence, tier 3New licensees from 2026$2.25 million per yearNov 8, 2026
Via AVC streaming licence, smallest categoryNew licensees from 2026$100,000 per yearNov 8, 2026
Via AVC title-by-titleTitles of 12 minutes or less$0.00Nov 8, 2026
Via AVC title-by-titleLonger titlesLower of 2% of first arm’s-length-sale remuneration or $0.02 per titleNot listed
Tencent Cloud VOD, H.264 transcodePer minute, SD / HD / FHD$0.003 / $0.0061 / $0.0121Oct 28, 2026
Tencent Cloud VOD, H.264 transcodePer minute, 2K / 4K$0.0242 / $0.0521Oct 28, 2026
Tencent Cloud VOD, AV1 transcodeSame resolution tiersBilled at the H.265 general transcoding rate, above H.264Oct 28, 2026

Read the Tencent rows with care. They are one vendor’s list prices on one pricing page, dated October 28, 2026, and they are not industry prices. Other services charge differently. The useful lesson is the ratio: AV1 transcoding costs more than H.264 because it uses more computing.

The Via fees target streaming services and device makers, not individual uploaders. The platforms you upload to hold their own arrangements, and the pricing above is about whether a new service can legally distribute H.264 video. That is analysis rather than a statement from Via, so confirm with a lawyer if you build a commercial player or app. For ordinary YouTube, Twitch or client work, licensing should not drive your choice. Compatibility and speed should.

Real-world examples: who uses which codec and why

Six cases show how the trade plays out. Each is drawn from a dated report or a vendor page, and single-report items are labeled as such.

  • Netflix. The company said AV1 exceeded one-third of its global VOD streaming, as AOMedia reproduced it on September 9, 2026. Netflix controls its apps and devices, pays for bandwidth and encodes each title once for millions of views. Every factor favors a slow, efficient codec.
  • YouTube. AOMedia states that more than 90% of YouTube’s catalog, weighted by watch time, was available in AV1 as of March 19, 2026. You upload one file. YouTube makes the renditions. This is why your export codec does not set the codec your viewers get.
  • Tencent Cloud. The service supports both codecs for live transcoding and media processing, and prices AV1 well above H.264. It shows the cost side that customers actually pay for.
  • Bitmovin. The encoding vendor launched Encoder V3, claiming 66% lower AV1 encoding time at equal quality and a 50% cut in its managed-cloud AV1 cost multipliers. AV1 gets cheaper to run in the cloud, which makes it more attractive for platforms and less urgent for individual creators.
  • Microsoft Teams on Azure Virtual Desktop. A documentation entry dated October 21, 2026 records a change that replaced a software H.264 encoder with OpenH264, an open-source implementation, to improve outgoing camera quality. H.264 is still the codec engineers reach for in real-time calls, and they are still improving how it is encoded.
  • Sunell. The camera maker announced AV1-enabled network cameras on October 22, 2026. Hardware that records in AV1 is arriving, but the announcement includes no pricing or shipping dates.

The pattern is consistent. Organizations that control both the encoder and the player adopt AV1 first. Individuals and small studios, who feed files into a chain of tools they do not control, stay on H.264 and let the platform upgrade the viewer’s stream. That is a sensible division of labor, and it is the reason the verdict below does not tell most creators to switch.

There is one more real-world signal worth tracking. Windows reportedly added an AV1 encoder operating-mode codec API in 2026, and W3C drafted AV1 into WebCodecs in October. When operating systems and browsers formalize encoding interfaces for a codec, the long tail of consumer tools follows. That is how H.264 spread in the first place.

Use-case recommendations: which codec for which job

Pick by destination, not by taste. These six cases cover most creator work.

  • YouTube uploads. Export a high-quality H.264 MP4 master and let YouTube build the renditions. You skip the slow encode, and viewers on AV1-capable devices still receive AV1 where the platform serves it.
  • Client deliverables. Send H.264 MP4. Clients open files on locked-down office laptops and old phones, and a file that will not play costs more time than any storage saving gains. Offer an AV1 copy only when they ask.
  • Twitch and live streaming. Stream in H.264 unless your platform’s own page lists AV1 ingest. You can still record locally in AV1 to save disk space, as long as your GPU has a hardware encoder.
  • Archives. Use AV1 for finished masters you keep for years, since the slow encode runs once and the storage saving repeats. Keep the project files and a high-quality intermediate as well, because an AV1 file is a poor editing source.
  • Web embeds on your own site. Serve AV1 with an H.264 fallback. You control the player markup, so you can offer both and let the browser choose. Smaller files help page weight and bandwidth bills.
  • Short intros, outros and logo stings. Export H.264 MP4. The files are already tiny, so a codec change saves almost nothing. The Vipid sample intros are a handy reference for the short-clip type this advice covers.

Two edge cases deserve a note. For HDR and high-resolution work, AV1 is positioned for bandwidth-efficient high-resolution and HDR delivery, so it makes more sense there than for 1080p SDR. For heavy motion, such as gameplay, test before you commit, since fast-motion footage stresses every encoder differently.

One more decision rule helps when you cannot tell. Ask who controls the player. If you do, AV1 with a fallback is safe. If someone else does, H.264. That single question resolves nearly every case in the list above.

Migration guide: adding AV1 to an H.264 workflow

You do not need to abandon H.264. Add AV1 as a second output, test it, and expand only if it earns its place. The steps below use FFmpeg because it is free, current and scriptable. The CRF values are starting points to tune on your own footage, because the CRF scales of x264 and SVT-AV1 are not equivalent.

Step 1: keep your H.264 master export

Leave your current H.264 preset alone. It is your fallback, your client file and your upload file. Export it first from your editor, then treat everything else as an extra.

ffmpeg -i master.mov -c:v libx264 -preset slow -crf 18 -pix_fmt yuv420p -c:a aac -b:a 192k -movflags +faststart out_h264.mp4

Step 2: confirm your tools support AV1

Run ffmpeg -encoders and look for libsvtav1, libaom-av1 or a hardware entry. If none appears, update FFmpeg first. The 2026 release listings show 9.0.2 and 8.1.3 as the newest builds, with 8.1 and 8.0 still maintained, so a build older than those is out of date.

Step 3: encode one test clip

Pick a 30 to 60 second clip with real difficulty: motion, fine detail and a flat gradient. Encode it with SVT-AV1 using a constant-quality setting, not your old H.264 bitrate.

ffmpeg -i clip.mov -c:v libsvtav1 -preset 6 -crf 30 -pix_fmt yuv420p10le -c:a aac -b:a 192k -movflags +faststart out_av1.mp4

Step 4: compare size, time and quality

Log three things for each file: output size, wall-clock encode time and a quality score. VMAF is the common metric, and SVT-AV1 4.0 added per-frame PSNR and SSIM calculation inside the encoder as well. Then watch both files at full screen. Metrics can pass a file your eyes reject. Keep the results in a simple log so you can compare clip types.

ffmpeg -i out_av1.mp4 -i clip.mov -lavfi libvmaf -f null -
Clip typeH.264 file sizeAV1 file sizeEncode time (each)Your verdict
Talking head, static backgroundFill inFill inFill inFill in
Gameplay capture, fast motionFill inFill inFill inFill in
Animated title or logo with gradientsFill inFill inFill inFill in
Screen recording, small textFill inFill inFill inFill in
Grainy or noisy footageFill inFill inFill inFill in

Step 5: test playback on real devices

Open the file in a browser, a desktop player, a phone and a TV if your audience watches on one. Look for stutter, color shifts and failed loads. If a device fails, note which one, since that tells you whether you need a fallback.

Step 6: ship both and add a fallback

On your own site, list the AV1 source first and the H.264 source second inside the video element, so capable browsers pick AV1 and the rest fall back. For platforms, upload H.264 unless the platform’s own page says AV1 is welcome. Track what happens for a month before you scale up. More codec guides sit in our export and codecs category.

Step 7: automate, then avoid the usual mistakes

Once the test passes, script the AV1 export so it runs unattended overnight. Review the settings every quarter, because encoders, hardware and platform rules change fast. Five mistakes waste most of the AV1 advantage:

  • Copying an H.264 bitrate into AV1. Use constant quality and let the encoder spend bits where scenes need them.
  • Judging by file size alone. A tiny file with smeared detail is a failure, so always watch the result.
  • Using AV1 as an editing source. Heavy compression makes timeline scrubbing slow, so keep a proper master.
  • Skipping the fallback. One viewer on an old phone who cannot play the file is enough to justify an H.264 copy.
  • Trusting a vendor percentage. Claims such as Bitmovin’s 66% encode-time cut describe one product on its own test material, not your footage.

Pros and cons of AV1 and H.264

CodecProsCons
AV1Stronger compression than H.264
Royalty-free under AOMedia’s patent policy
Open-source encoders with active development
Growing hardware decode and platform support
Good fit for archives, HDR and high-resolution delivery
Slower to encode, especially in software
Not accepted by every editor, platform or device
Poor editing source compared with an intermediate
Cloud transcoding costs more
Superseded by AV2 on the standards roadmap, though AV2 is early
H.264Plays almost everywhere
Fast to encode, light on hardware
Accepted by every editor and upload platform
Mature tools and predictable results
Lowest cloud transcoding rate in published tables
Larger files at the same quality
Less efficient than newer codecs
Patent pool with 2026 streaming licence tiers for new licensees
Visible banding on flat gradients at low bitrate
No new edition to wait for

The pros and cons are mirror images, which is the point. What AV1 gains in efficiency, it pays for in compute and compatibility. What H.264 gives up in file size, it earns back in reach. Neither codec is wrong. They fit different jobs, and the skill is matching the codec to the destination.

A final cost check helps before you adopt AV1 widely. Add up the extra render time per export, multiply by how many exports you make each week, and compare that to the storage and bandwidth you would save. For a creator posting two videos a week, the extra render time usually wins and the saving looks small. For a studio archiving hundreds of hours, the arithmetic flips.

Verdict: export H.264 by default, add AV1 on purpose

For most creators in November 2026, H.264 MP4 is the right default export, and AV1 is a deliberate second output for archives, web embeds you control and storage-heavy capture. The data points the same way across sources. Netflix reported AV1 above one-third of its viewing, while H.264 remains the broadest compatibility default. The gap between those two facts is the gap between file creation and file delivery.

Pick AV1 when three conditions hold. The destination says it accepts AV1. Your hardware or schedule can absorb the encoding time. And the file is large enough that a smaller size matters, like a long recording or an archive. If any of those fails, export H.264 and move on. Nothing about the codec will make a weak video better.

Watch AV2 over the next year. AOMedia claims about 30% more efficiency than AV1 and reported early adoption within four months, but a codec needs encoders, hardware decoders and platform acceptance before a creator should touch it. Until your editor lists it in the export menu, treat AV2 as industry news. For now, keep a clean H.264 master, test AV1 on one project and let the numbers from your own footage decide.

Common questions

Is AV1 better than H.264?

AV1 compresses better, so it gives smaller files at comparable quality. H.264 is better on compatibility, encoding speed and editor support. “Better” depends on the destination. For public uploads, H.264 is usually the safer pick, and for archives and controlled web delivery AV1 often wins.

Should I upload AV1 to YouTube?

Upload a high-quality H.264 MP4 unless YouTube’s own help page says AV1 is accepted for your account. YouTube builds the renditions viewers see, and AOMedia says more than 90% of its catalog by watch time was available in AV1 as of March 19, 2026, so you still reach AV1-capable viewers.

Can I stream to Twitch in AV1?

Check Twitch’s current ingest documentation before you change your OBS output. Until that page lists AV1 for your account, stream in H.264. You can record a local copy in AV1 if your GPU has a hardware encoder.

Is AV1 free to use?

AOMedia describes AV1 as covered by its open, royalty-free patent policy, and no official price for using the codec exists. You may still pay for hardware or cloud encoding. SVT-AV1 itself is open-source software with no subscription price.

Why does my AV1 export take so long?

AV1 needs far more computing than H.264, especially in software at slow presets. Use a faster preset, a hardware encoder if your GPU has one or a lower resolution for drafts. Tencent Cloud’s published tables list higher processing ratios for AV1, which shows the same cost at service scale.

Does AV2 replace AV1?

Not yet for creators. AOMedia released AV2 in 2026 and claims about 30% more compression efficiency than AV1, but AV1 remains the widely deployed codec. Wait until your editor and platforms list AV2 before you plan around it.

Should I use HEVC instead of AV1?

HEVC is a middle path with mature hardware support and better efficiency than H.264, though it carries its own licensing questions. Choose it when your editor and destination both accept it and AV1 does not.

What is the safest codec for client delivery?

H.264 in an MP4 container with AAC audio. It opens on almost any device, which removes support emails. Add an AV1 copy only if the client asks for a smaller file and confirms their players handle it.

Make it with Vipid

Jonah Reyes

Editing & Export Editor · Vipid Team

Jonah Reyes is the Editing & Export Editor at Vipid. He covers editing software, export settings and codecs, and the video specs of YouTube, Shorts, TikTok and Reels, plus OBS and screen recording. He builds Vipid’s spec tables from the platforms’ own documentation and re-checks them every 60 to 90 days, so the numbers in a guide match what the upload dialog actually accepts.

All articles by Jonah Reyes ›   How we check tools ›

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