What is an AI video editor?

An AI video editor is software that uses AI to cut, caption, reframe and polish video. Some add AI features to a timeline you operate; others, like Valmera, are agentic: you describe the result in plain English and an AI agent performs the edit on your real footage, renders a preview, checks it and revises.

Which AI video editor is best in 2026?

It depends on the job. Valmera is built for handing off the whole edit of footage you already have by describing it. Descript suits transcript-led podcast and interview editing, Premiere Pro suits professional timeline work, CapCut suits hands-on social edits, OpusClip suits batches of clip candidates, and Runway suits generating shots you didn’t film.

Can AI edit my raw footage into a finished video?

Yes. Upload the raw recording and describe the finished video: what to cut, the caption style, the format, the music. Valmera’s agent removes dead air, filler words and retakes, adds word-timed captions, reframes, adds b-roll and music, and renders a preview you can revise in chat before exporting the MP4.

What is the fastest way to edit a video with AI?

Upload once, then send one complete brief instead of many small requests: “Cut the pauses and ums, add captions, make it 9:16, put my track under it.” The agent sequences the steps itself. Review the preview, ask for one or two fixes, and export. Indexing runs once per upload, so later revisions skip that step.

Does Valmera re-encode my video or lose quality?

Your original file is never modified. Every edit is stored as a decision list, so repeated revisions never stack generations of compression. Previews use a lightweight proxy; the final export is rendered once, from the original file, as a full-resolution H.264 MP4. Like any MP4 export it is a new encode, and cropping or zooming uses fewer source pixels.

How long or large can my video be?

Each main video can be up to 14 GB and up to 3 hours; both limits apply. Supported formats are MP4, MOV, M4V, MKV and WebM. Images and music files can be up to 50 MB each. See the long-video guide for editing 1–3 hour recordings.

Can ChatGPT or Claude edit my videos through Valmera?

Yes. Valmera is an MCP server at https://valmera.io/mcp/server. Connect it in Claude, ChatGPT, Cursor or another MCP client, sign in, and the assistant can upload footage, edit, render previews and export the final MP4 with export_final. MCP access is included with eligible subscriptions.

How much does it cost, and is there a watermark?

Creating an account and uploading are free. Editing requires a subscription; current plans are on the pricing page. Paid exports have no watermark over your video and end with a brief Valmera end card.

The AI Video Editor That Edits Your Real Footage

Valmera is an online AI video editor for footage you already have. Upload a recording, describe the edit in plain English, and an AI agent does it: it cuts dead air and filler words, adds word-timed captions, reframes to 9:16, and adds b-roll, music and sound effects. It renders a preview and checks its own frames and audio. You revise by chatting, then export a full-resolution MP4 rendered from your original file.

INPUT

Your video, up to 14 GB / 3 h

DIRECTION

Plain-English requests

OUTPUT

Full-resolution MP4

Upload your footage →See plans →

Creating an account and uploading are free. Editing requires a subscription. See plans.

VALMERA STUDIO

EXPORT MP4

YOU

Cut the silences, add bold captions, make it 9:16, and put my uploaded track under my voice.

VALMERA

Preview ready. Here is what I did:

✓ silence cuts snapped to word edges

✓ captions timed to the edited video

✓ 9:16 reframe and a ducked music bed

DESCRIBE THE NEXT CHANGE

“Make the captions a little smaller…”

PREVIEW16:9 → 9:16

THE EDIT FOLLOWS
YOUR DIRECTION

TIMELINE− FIT +

TRANSCRIPT · CLICK TO SEEK · EDIT WORDING

The Studio layout: chat with the agent on the left; preview, timeline and editable transcript on the right.

How to Edit a Video With AI in Valmera

1
Upload your video
Add an MP4, MOV, M4V, MKV or WebM up to 14 GB and 3 hours. It uploads straight from your browser; there is nothing to install.
2
Let it index once
Valmera builds a word-level transcript with speaker labels, finds silences, shots and burned-in text, and samples frames the agent can look at. Every later request reuses this index.
3
Describe the edit
Write it the way you would brief an editor: “Cut the ums and long pauses, add bold captions, make it 9:16, and put my uploaded track under my voice.” One message can hold several dependent steps.
4
The agent edits
It plans the order, calls the editing tools and writes a new version of the edit decision list. Your original file is never modified, and every cut can be restored.
5
It checks its own preview
The agent renders a preview, looks at the frames and listens to the mix, and fixes what it finds before it reports back.
6
Revise and export
Ask for changes in chat or adjust the timeline yourself. Export a full-resolution H.264 MP4 rendered from your original file, in Studio or from your AI assistant over MCP.

An Agent Loop, Not a One-Shot Filter

Valmera is an agentic video editor: the AI is the editor, and your job is direction. Each request runs the same loop. The agent plans, edits a versioned edit decision list, renders the result, looks at it, and goes round again until the preview matches what you asked for.

Steps 3 to 6 repeat on every revision. Indexing happens once per upload.

What You Can Ask For

Each row is something you can type in plain English. The right-hand column lists the editing tools the agent calls for it; Claude or ChatGPT can call these tools too, over MCP. Music comes from your own file or a specific song you name; there is no stock music library or AI music generation.

Job	Ask for it like this	Tools the agent calls
Cleanup	“Cut the dead air and the ums, and drop the false starts.”	`cut_silences` `remove_filler_words` `cut_range` `restore_range`
Captions & text	“Word-timed captions with the active word highlighted, and my name in a lower third.”	`add_captions` `set_caption_style` `set_caption_fixes` `add_title_card`
Framing & motion	“Make it 9:16 and keep me in frame. Punch in when I stress a word.”	`auto_reframe` `set_frame` `punch_in_on_emphasis` `set_speed`
Shorts from long videos	“Find the complete stories in this podcast and make each one a short.”	`make_shorts` `shorts_status` `open_short`
B-roll & media	“Show b-roll when I mention the factory. Put my logo top right.”	`research_broll` `search_stock` `insert_media` `add_overlay`
Music & sound	“Put my uploaded track under my voice, cut to the beat, and master it for YouTube.”	`add_music` `beat_align_cuts` `add_sfx` `set_master_loudness`
Look & finish	“A warmer, cinematic grade with soft fades.”	`set_color_grade` `apply_look` `set_transitions`
Screen recordings	“Record a demo of my site and make the cursor bigger.”	`record_website_demo` `enhance_cursor` `showcase_demo`
Repair & privacy	“Blur the license plate and remove the burned-in subtitles.”	`blur_region` `erase_burned_text` `erase_region`
Review	“Show me the whole preview and check the captions.”	`render_preview` `watch_video` `look_at` `audit_captions`

Every job also has its own guide on the AI video editing tools page. The complete catalog, 143 tools (live server card, October 2026), is in the MCP tool reference.

Prompts to Try on Your First Video

TALKING-HEAD VIDEO

“Cut the long pauses and the ums but keep my jokes, add clean captions at the bottom, and punch in when I stress a word.”

PODCAST EPISODE

“Find the three strongest complete stories in this episode and turn each one into a 9:16 short with bold captions.”

PRODUCT DEMO

“Speed up the parts where I wait for pages to load, zoom in on each click, and open with a title card that says the product name.”

FIXING A DRAFT

“The cut at 1:42 clips my last word, so give it back. Then swap the music for the other track I uploaded.”

For a prompt formula and many more examples, see how to edit video by chatting with AI and the prompt library. Want one message to produce the whole rough cut? Read the hands-off autonomous editing guide.

Who It’s For

YouTubers

Jump cuts, punch-ins, captions and grades for talking-head videos.

Podcasters

Clean up long episodes, then pull complete stories out as shorts.

Short-form creators

9:16 reframes, animated captions and beat-synced cuts for TikTok and Reels.

Course creators

Dead air out, chapter cards and callouts in.

SaaS and product teams

Recorded demos with bigger cursors, click zooms and title cards.

Agencies

Client revisions by description instead of by timeline.

Professional creators use it for the mechanical hours: cleanup, captions, reframes and versions for every platform. Recording longer material? See editing 1–3 hour recordings with AI. Weighing it against hiring help? See the AI that edits videos for you.

Describe Your Next Edit

Upload real footage, say what you want, and review the preview. Creating an account and uploading are free; editing requires a subscription.

Upload your footage →

See pricing →

Which AI Video Editor Do You Need in 2026?

“AI video editor” covers very different products. Pick by the job, not the label: an agent that performs the edit, a transcript editor, a pro timeline with AI help, a clipper, or a generator.

Product	Kind	Best for
Valmera	Agentic editor	Handing off the whole edit of footage you already have, by describing it in chat
Descript	Transcript-based editor with the Underlord co-editor	Podcasts, interviews and tutorials you want to edit by editing the text
Adobe Premiere Pro	Professional timeline with an AI Assistant (public beta)	Editors who want AI help without leaving a pro NLE
CapCut	Hands-on editor on desktop, mobile and web, with AI features	Social edits built from effects, templates and stickers
OpusClip	Long-to-short clipper	Many clip candidates from one long recording
Runway	Generative video, with Edit Studio for transforming footage	Creating or restyling shots you didn’t film
OpenReel	Open-source browser editor	Keeping media on your device with full manual control
Clypmint	AI-directed edit plus a timeline	Applying a house or reference style to creator footage

Product descriptions checked September 6–7, 2026 against each vendor’s own pages: Descript, Premiere AI Assistant, CapCut, OpusClip, Runway Edit Studio, OpenReel and Clypmint.

Head-to-head pages: Valmera vs Descript, vs CapCut, vs Premiere Pro, vs OpusClip and vs Runway. The wider field is in the best AI video editors guide and the AI video editor directory. New to the topic? Start with what AI video editing is and how it works.

Edit From Claude, ChatGPT or Cursor

Valmera is also a remote MCP server, so the assistant you already use can edit your video directly. Connect it, sign in with OAuth, and the assistant uploads footage, reads the transcript, cuts, captions, renders a preview, watches it, and, when you ask for the finished file, exports the MP4 with export_final, wait_for_job and download_url.

Connector URL
https://valmera.io/mcp/server
Claude Code
claude mcp add --transport http valmera https://valmera.io/mcp/server

Over MCP your assistant does the planning and calls the editing tools directly; it does not hand off to Valmera’s own agent. MCP access is included with eligible subscriptions. Setup: connect your assistant, Claude, ChatGPT, Cursor. The full walkthrough is on using an AI agent that edits video.

Specs

Spec	Valmera
Main video	MP4, MOV, M4V, MKV or WebM, up to 14 GB and 3 hours per file (both limits apply)
Images and music	PNG, JPG, WebP; MP3, WAV, M4A, AAC, OGG; up to 50 MB each
Indexing	Word-level transcript with speaker labels, shots, silences, burned-in text, visual evidence and a proxy
How edits are stored	Versioned edit decision list; the original file is never modified and every cut can be restored
Preview	Rendered by the agent, which inspects its frames and audio before it reports back
Export	Full-resolution H.264 MP4 rendered from the original file; paid exports end with a brief Valmera end card
Aspect ratios	16:9, 9:16, 1:1 and 4:5 by crop, pad or blurred pad, plus mid-video aspect shifts
Speed	0.25x to 4x with natural pitch
Music and sound	Your own track or a specific song you name, ducked under speech; real recorded sound effects
AI assistants	MCP server at valmera.io/mcp/server: OAuth 2.1 with PKCE; 143 tools (live server card, October 2026)
Languages	English is the best-tested transcription language

Details: uploads, export and timeline and transcript.

Limits

It edits footage you provide; it is not a text-to-video generator. See AI video editor vs generator.
Captions are burned in. There is no SRT or VTT import or export.
No team seats or collaboration yet.
No direct publishing to YouTube or TikTok: download the MP4 and post it.
No custom font uploads, true crossfades or dissolves, or motion-tracked stickers.
No audio denoise (“studio sound”) and no AI music generation.
No multicam sync and no editable Premiere, Resolve or Final Cut project export.
English is the best-tested transcription language.

Simple, Transparent Pricing

Plus

$15/mo

500 credits every month

Your own AI assistant

Pro

$50/mo

1,500 credits every month

Valmera AI included

Max

$100/mo

4,000 credits every month