Tella Agent vs Descript Underlord, Riverside Co-Creator and Kapwing

Which AI editing agent fits screen recordings, talking-head video, podcasts or social clips: the Tella Agent, Descript's Underlord, Riverside's Co-Creator or Kapwing's AI assistant, side by side.
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Which is better: the Tella Agent or Descript Underlord?

For screen recordings, product demos and tutorials, the Tella Agent is the better AI editing agent: it zooms on your clicks, switches screen and camera layouts, and can record a missing web page with Auto Capture. For talking-head video and podcasts edited as text, or when you need AI voices, dubbing or avatars, Descript Underlord is the better pick.

  • Pick Tella Agent for screen recordings: product demos, tutorials, onboarding and sales walkthroughs. It zooms on your clicks, switches screen and camera layouts, and with Auto Capture (closed beta) can record a web page your video is missing.
  • Pick Descript Underlord for talking-head video and podcasts edited as text, especially if you need AI voices, dubbing or avatars.
  • Pick Riverside Co-Creator if you record interviews and podcasts in Riverside.
  • Pick Kapwing for quick social clips in the browser, with generated footage in the same project.

Good to know

  • The Tella Agent is in public beta: everyone sees it in the editor, and sending it messages needs a paid plan or the 7-day free trial (3,000 credits).
  • Tella doesn't generate AI narration, clone voices or dub audio. It translates subtitles into up to 10 languages.
  • Claude, ChatGPT, Codex and Cursor can drive the same kind of tools through Tella's MCP server at https://api.tella.com/mcp, on every plan including the free trial.
  • Auto Capture, which lets the agent record a web page, is in closed beta.

See the full comparison table

We make Tella. Competitor facts come from each vendor's own site and help docs, linked below. These products change every week, so check before you buy. Checked October 21, 2026.

Side by side

Tella AgentDescript UnderlordRiverside Co-CreatorKapwing AI
Best forScreen recordings, product demos, tutorialsTalking-head video and podcasts edited as textPodcasts and interviews recorded in RiversideShort social clips in the browser
Where you recordMac and Windows apps, Chrome extension, webDescript's recorder, or importRiverside's remote studioBrowser recorder, or import
Screen-recording toolsZooms from your clicks, screen and camera layouts, animated cursor, blurZooms, layouts, screen recorderBuilt for multi-track camera recordingsGeneral timeline tools
Edits by transcriptYesYes, Descript's coreYesYes
Records for youYes, web pages with Auto Capture (closed beta)NoNoNo
AI voices, dubbing, avatarsNoVoice clones, dubbing (Business), avatarsAI translationDubbing; voice clones on Business
Generated mediaImages, short b-roll clips, sound effectsVideo generation (Creator and up)AI b-rollVideo, b-roll and images
Memory and reusable workflowsMemory, saved skills, choice of AI modelBrand Studio (Business)Not listedBrand Kit
Claude and ChatGPT (MCP)Every plan, more than 100 editing toolsYes, including Underlord editsGrow plans and upUpload, subtitles, translation, dubbing, exports
Price with the agentPro $13 or Premium $19 per user/month, with 3,000 or 6,000 creditsHobbyist $16, Creator $24, Business $50 per person/monthPro, $288/year; Co-Creator uses no creditsPro $16, Business $50 per month, with credits

List prices in USD. Tella, Descript and Riverside billed annually; Kapwing as shown on its pricing page. Checked October 21, 2026.

Sources: Descript pricing, Underlord, Descript MCP, Riverside pricing, Co-Creator, Kapwing pricing, Kapwing AI, Kapwing MCP, Tella pricing

What makes Tella Agent different

It understands screen recordings

Tella records where you clicked, so "zoom when I click Settings" is one request, not a keyframe job. It switches between screen, camera and split layouts per section, and app recordings get an animated cursor you can restyle.

It can record, not just edit

With Auto Capture (closed beta), the agent sends a capture agent to a web page. It explores, scripts a walkthrough and films it, then the Tella Agent places the take as b-roll where you talk about that page.

Your own AI gets the same tools

Claude, ChatGPT, Codex or Cursor connect to Tella's MCP server on any plan, including the free trial, and drive the same kind of editing tools. Skills you save run the same steps every time.

What it doesn't do

It won't generate narration, clone your voice or dub audio. Subtitles translate into up to 10 languages, but the audio stays yours. If those matter more than screen tools, look at Descript or Kapwing.

Which one to choose

Tella Agent vs Descript Underlord

Underlord is Descript's "all-in-one video agent": it reads your script, watches your video and can call any Descript tool, including Studio Sound, voice clones, AI speech, avatars and dubbing into 30+ languages on Business. Choose it for talking-head video, podcasts and webinars.

Choose the Tella Agent when the video is a screen walkthrough: click-driven zooms, screen and camera layouts and Auto Capture are built for that, and Tella costs less per seat.

Tella Agent vs Riverside Co-Creator

Co-Creator is the chat agent in Riverside's editor ("make a reel from the part about tacos"), on top of Riverside's separate-track remote recording, and it's strong at turning one long recording into posts for each platform. Choose it if Riverside is your studio.

Choose the Tella Agent if you mostly record your own screen and camera.

Tella Agent vs Kapwing

Kapwing pairs a chat assistant with a browser timeline and lots of generation: trim, subtitle, find highlights, generate b-roll from a prompt or PDF, inpaint, dub and upscale. Choose it for short, social-first content and generated footage.

Choose the Tella Agent for longer screen-based videos where layouts, zooms and a clean cursor carry the story.

Frequently asked questions

Tella's Tella Agent. It edits your real screen recording inside Tella's editor: it cuts filler words and mistakes, zooms in when you click, switches between screen, camera and split layouts, and adds captions, a title and chapters. Descript Underlord, Riverside Co-Creator and Kapwing's assistant are built around talking-head video, podcasts and social clips instead.

For screen recordings, product demos and tutorials, yes: the Tella Agent works with Tella's screen tools (zooms from your clicks, screen and camera layouts, an animated cursor) and can film a web page for you with Auto Capture (closed beta). For talking-head video and podcasts edited as text, or when you need AI voices, dubbing or avatars, Underlord is the stronger pick, because Tella doesn't generate narration.

The Tella Agent in Tella. Like Underlord, it edits from plain-language requests and the transcript, but it's built for screen recordings: click-driven zooms, screen and camera layouts and a restylable cursor. Tella Pro costs $13 per user per month billed annually, against Descript's Hobbyist at $16 and Creator at $24.

Tella, Descript, Riverside and Kapwing all run MCP servers that Claude or ChatGPT can connect to. Tella's (https://api.tella.com/mcp) is on every plan, including the free trial, and has more than 100 editing tools. Descript's runs Underlord edits, Riverside's is on Grow plans and up, and Kapwing's covers uploads, subtitles, translation, dubbing and exports.

Record or upload the video to Tella and ask the Tella Agent: "Cut the filler words and the long pauses." It finds them in the transcript and makes the cuts in the editor while you watch, and you can undo any of them. Claude or ChatGPT connected to Tella's MCP server can do the same. Descript's Underlord and Riverside's Co-Creator also remove filler words.

Tella. You record with Tella's Mac or Windows app, Chrome extension or web recorder, or Auto Capture (closed beta) has an AI agent record a web page for you, and then the Tella Agent or Claude or ChatGPT edits the recording. Descript and Riverside record and edit too, but no AI records for you.

It's included with Tella Pro ($13 per user per month billed annually) and Premium ($19), and runs on credits: 3,000 a month per Pro seat and 6,000 per Premium seat, pooled across the workspace. The 7-day free trial includes 3,000 credits.

No. Tella doesn't generate narration or dub audio. It edits what you recorded, translates subtitles, and can add generated images, short b-roll video clips and sound effects where you ask. Descript and Kapwing both offer AI voices and dubbing.

Riverside Co-Creator, if you record the podcast in Riverside: it works on Riverside's separate-track recordings and turns one episode into clips for each platform. The Tella Agent is the better fit when the video is your own screen and camera.

Yes. It adds text overlays, titles and highlights in every workspace, and with Tella Motion it builds animated titles, kinetic type, diagrams and data callouts timed to your words.

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