AI Video Editor for Long Recordings: Limits and Workflow

Check size, duration and upload method

The live upload-limits response checked September 8, 2026 returned 15,032,385,536 bytes and 10,800 seconds for main footage. The interface labels that byte ceiling “14 GB”; in binary units it is 14 GiB. Supported video extensions are MP4, MOV, M4V, MKV and WebM. A supported extension does not guarantee that a damaged file or every codec combination will process.

• Too large, but short enough: prepare a smaller copy and inspect its picture and audio. Lowering the bitrate can reduce bytes, but may lose detail. Keep your original.
• Too long, but small enough: split at natural topic boundaries or prepare a shorter source. Compression alone does not fix duration. Track each part's original timestamp offset.
• Added media: direct video attachments use the displayed 14 GB size ceiling. Direct audio and images each have a separate displayed 50 MB ceiling. Use the upload guide for their formats and exact byte limits.
• Video imported from a link: the checked configuration limits a download to 500 MiB and one hour. The extractor targets up to 1080p when available; its fallback and the provider affect the actual file. These are separate from direct-upload limits.

Resolution alone does not tell you file size. As an illustrative calculation, two hours at an average total bitrate of 10 megabits per second is about 9 decimal GB before container overhead: 7,200 × 10,000,000 ÷ 8 bytes. Measure the real file instead of relying on a “1080p” label.

Transfer and analysis are distinct stages. With the proxy-first path, analysis can begin from a working copy while original media is still transferring. Follow the project's actual readiness state and let the original upload finish. Network speed, encoding, duration and processing demand affect the wait; there is no fixed long-video turnaround.

The transcript and visual index help the agent locate relevant evidence without placing the whole recording in every request. They are aids to inspection, not a guarantee that every statement, speaker or late section was understood correctly. Check names, numbers, overlapping speech and visually important moments against the source.

A useful analysis-only agent reply can consume credits even if it makes no timeline change. Editing usage depends on the work performed, including relevant model and compute use; request count alone does not predict the charge. Check credits documentation, current plans and the balance shown in your account.

An illustrative brief for a two-hour interview

Suppose you want a 60–75-minute landscape episode and three possible short clips. The ranges below are invented to demonstrate planning; they are not a measured Valmera result, a promised runtime reduction.

Start with the map request, then approve a structure after inspecting the evidence:

Map the topics in the original recording using source timestamps. For each proposed omission, explain what would be lost and flag uncertainty. Aim for a 60–75-minute episode, preserving the demonstration at source 32:00–38:00. Do not change the timeline in this request. If the target needs a major story cut, identify that tradeoff for review.

After approval, test a representative passage and give a concrete correction:

On the current version, review source 12:00–15:00. Tighten only clearly unnecessary gaps; preserve breathing, deliberate pauses and complete words. Keep the interviewer's question with the answer. Show the affected preview range so I can listen to the joins before wider cleanup.

Reducing 120 minutes to 75 requires removing 45 minutes if playback speed stays the same and nothing is added. Do not assume silence removal will supply that reduction. Choose the topics and examples the audience can do without; reassess the duration after the actual changes.

Name the clock. If source 00:00–05:00 is removed and there are no other changes, source 00:10:00 appears at preview 00:05:00. Further cuts, rearrangement or speed changes invalidate that simple offset. Record the project version with each correction in the blank editing brief.

Compare long-video limits on the same terms

A maximum upload size, a source-duration limit, a monthly processing allowance and an export-duration limit answer different questions. An editor can accept hours of footage while a particular feature produces short clips. Check the input route, plan and final deliverable together.

This Valmera-authored reference was checked against the linked vendor pages on September 8, 2026. It is a documentation comparison, not a shared-footage speed or quality test. “Not established” means the checked reference did not settle the question; it does not mean unlimited use or that no limit is published elsewhere.

To evaluate a candidate, use the same representative source passage and brief. Record whether it accepts the file, preserves your protected material, allows the corrections you need and delivers the required final format. Separate observed results from advertised capabilities; none of these upload numbers establishes which editor will make the best cut.

Review the whole program before delivery

Reviewing one clean passage is useful for choosing an approach; it does not certify the next two hours. Inspect each topic transition and play the complete intended version. Listen for clipped words, missing context, uneven music and abrupt endings. Check captions and framing in later sections as well as the opening.

• Separate clips: candidate ranges can become child projects. Finish and review each child individually; candidate creation is not completed batch delivery.
• Subtitle and chapter requirements: Studio captions are burned into the picture. It does not import or export SRT/VTT files. A visible chapter title is different from chapter metadata for the destination platform.
• Specific speakers: identify the intended passages with evidence and time ranges. Do not assume a general request to keep one person's answers establishes correct speaker identity throughout the recording.
• Final output: create the final MP4 in Studio. The checked external MCP workflow supports editing and review but does not initiate final export. Inspect the download for total duration, picture detail, audio, branding and any appended ending.

The original media is used for final rendering, but the result is re-encoded and may be cropped, scaled or otherwise changed. Keep the original and the approved brief. Use version history to return to the intended edit state when a revision changes the wrong material.

Frequently Asked Questions

Start with a clear long-recording brief

Check your source, define what must stay, and review a representative passage. Accounts and uploads are free; indexing and agent editing require a subscription.