What’s new in Kathe

Share links, and a new home for your projects

Share a finished video as a link, keep your projects with your other videos, and hear more natural narration.

• NewShare a finished video as a link. The video panel has a Share link button, and kathe project share ID does the same. Links last 30 days, and an account can have up to 5.
• NewProjects now live with your other videos: ~/Movies/Kathe on macOS and Videos\Kathe on Windows. The first launch moves them once and says where they went. If Windows syncs Videos to OneDrive, they go in your home folder instead.
• ImprovedNarration sounds more like a person explaining out loud, and short explainers now give a brief overview of the whole source.
• ImprovedFinished projects take much less space. Kathe keeps one copy of the narration instead of several, and cleans up older projects once at launch.
• ImprovedThe command line is easier to read. kathe --help groups commands by what they’re for, and kathe project status gives a short answer about a project.
• ImprovedA project’s menu has Export logs, which saves a .zip you can send to support.
• FixedLong videos could stop during the visual review with “Generation made no progress for 20 minutes”.
• FixedRevising a project untouched for 30 days or more failed with “No conversation found”.
• FixedResuming after a usage limit could keep waiting for the old reset time, even after switching accounts.
• FixedSigning out now removes the computer from Approved devices on the account page.

Quick videos, and DeepSeek

Turn text you already have into a video in about a minute, and connect DeepSeek.

• NewQuick videos. kathe quick turns text you already have, such as notes, a long answer or a summary, into a short narrated video in about a minute. Studio starts playing it while the rest is still being made, and Make a full version starts a reviewed explainer from the same text.
• NewConnect DeepSeek with a DeepSeek API key in Settings → Providers.
• ImprovedA new API key is checked before it’s saved, so a key the provider rejects no longer replaces one that works.
• ImprovedNarration starts a moment after the video does, so players no longer cut off the first word.
• FixedSwitching providers or chatting could stop with “Project state is busy; try again” after Kathe quit during an update.

Watch your video being made

The project overview shows every step as Kathe makes your video, scripts are ready sooner, and you can connect xAI with a subscription.

• NewThe project overview shows your video being made as it happens. A map follows each step from script to finished video. The narration fills in as it’s recorded, each scene appears as it’s written, and review notes sit on the scenes they name. A line says what Kathe is doing right now and for how long.
• NewThe Script tab plays the narration as soon as it’s recorded, while the scenes are still being built.
• NewConnect xAI with a SuperGrok or X Premium subscription, as well as with an API key.
• NewEvery provider in Settings → Providers has a Check button. It sends one short request and tells you whether the model works or why not, for example no credits, a usage limit, or a model that isn’t available.
• NewA Reasoning setting in Settings → Providers sets how hard the models think. It starts at High; lower levels are faster.
• ImprovedScripts are ready sooner. One reviewer checks each draft and remembers what it already raised, instead of starting over every round.
• FixedWhen ElevenLabs refuses narration because of a payment problem on your account, Kathe now says so and offers Resume, instead of saying your key was rejected.
• FixedWith Claude Code, work could stop because Claude Code refused one of Kathe’s own steps.

Faster videos, and a model for reviews

Videos are produced faster, revisions recheck only what changed, and you can pick a separate, faster model for reviews.

• NewSettings → Providers has a Support model. It runs the outline, script and visual reviews, while the Lead model still plans and writes the video. Pick a faster Support model to speed up reviews.
• ImprovedNarration records several scenes at once, and longer videos render with more of your computer working in parallel, so videos finish sooner.
• ImprovedAfter a fix, the visual review checks only the scenes that changed, so revisions finish much sooner.
• ImprovedScript reviews fix a recurring problem everywhere it appears, so scripts settle in fewer rounds.
• Improvedkathe --help now works after any command, and kathe project show reports how far the work has got.
• FixedOn Windows, heavy rendering could lock you out of your PC for 10 minutes. Rendering no longer counts as failed sign-ins.
• FixedKathe sometimes said “AI key rejected” when work stopped for another reason. It now names the real reason.
• FixedA finished chat reply could show as “Kathe stopped during this request”, often on Windows. The reply is now kept.
• FixedWork that had stopped could keep showing as running, with a timer and a Stop button.
• FixedOn Windows, revising several episodes of a series at once could fail with “operation not permitted”.

Windows, and narration you control

Kathe now runs on Windows, and you can hear, regenerate and fine-tune the narration before any visuals are built.

• NewKathe for Windows. It runs on 64-bit Windows 10 and 11, and one purchase covers your Macs and PCs.
• NewListen to the narration before you approve a script. The script follows along word by word, and Regenerate records it again with the same delivery or a new one.
• NewTurn on Check narration before visuals in Settings to stop once the narration is recorded, so you can listen before the video is built.
• NewChoose the ElevenLabs voice model and speed for each video. New videos use Eleven v3, which follows delivery cues such as [whispers] or [excited] that the script writer adds where they help.
• NewA pronunciation list in Settings tells the voice how to say names and acronyms, with a Listen button to check each one.
• NewA Reels / Shorts format keeps text and key visuals clear of the Instagram and YouTube buttons and captions.
• NewProject info shows a project’s ID, voice, model, source document and versions. The Library search also finds projects by ID.
• ImprovedSetup on the home screen walks you through connecting your AI account and ElevenLabs. The model picker groups models by maker and has search.
• ImprovedGenerated music plays as one piece through the whole video instead of restarting at scene changes. Videos fade into the end card instead of ending abruptly.
• ImprovedKathe checks for updates once a day while it stays open, not only when it starts.
• ImprovedModel usage shows which AI model wrote each project.
• ImprovedRunning out of credits with ElevenLabs or an AI provider now says so, instead of reporting a rejected key or a usage limit.
• FixedExport works on a revised video whose script went back for approval.
• FixedA revision no longer replaces a cover you edited.

Versions and a real Export

Every change to a project is kept as a version you can go back to, and Export saves your video, its credits and its cover where you choose.

• NewEvery change to a project is saved as a numbered version of the whole project, episodes included. Open Versions on the project overview to see what changed, go back to any version and keep editing, or delete ones you no longer need. This replaces History.
• NewExport opens a window where you name the file, pick the folder and choose what to include: the video, its music credit and its cover image. If you pick more than one, they’re saved together in one zip file.
• NewExport all… on a series overview saves every finished episode into a new folder, numbered in order.
• NewThe video player adds 0.8×, 0.9× and 1.1× speeds. Export can save a copy at any speed from 0.5× to 2×, with the voice at its natural pitch.
• ImprovedCoding agents pick up new kathe commands after each app update. You can turn the agent skill off in Settings → Diagnostics.
• FixedExport in the Mac app now saves your video. Before, clicking it did nothing.
• FixedDownload cover image now saves to your Downloads folder and tells you where it went.
• FixedThe music credit shows on the Video tab again.

One video, every shape

Make a finished video in another format without recording the voice again, and every video now ends with a real conclusion, a Kathe end card and a cover image.

• NewMake a finished video in Full HD, HD, Vertical or Square from the Video tab. Kathe lays out the scenes again for the new shape and reuses the recorded narration, so no narration credits are used.
• NewRender every finished episode of a series in another format at once from the series overview.
• NewEvery video comes with a cover image in its own size, ready to download with the video.
• NewVideos end with a short “Made with Kathe” card.
• ImprovedScripts end with a real conclusion: a callback to the opening question, a recap and a takeaway. The script review also flags claims that are stated too absolutely.
• ImprovedChange the script of a finished video and it comes back to you for approval, with the previous video kept in History.
• ImprovedWhile Kathe works, chat answers your questions right away and holds requested changes until the work stops, or applies them now with Stop and apply now.
• ImprovedProjects are named after what the video is about, and any idle project can be restored from History, even unfinished work.
• ImprovedFrom the command line, kathe episode render and kathe project render make other formats, and kathe episode produce --voice picks the voice for one video.
• FixedA change to one episode of an automatic series no longer stops the others.
• FixedIf Kathe.app is moved, the kathe command now says so and how to fix it, instead of failing with a shell error.

Use your Claude subscription

Kathe can now write and chat with your Claude Pro or Max plan, series finish sooner, and coding agents can make videos with the kathe command.

• NewConnect your Claude Pro or Max subscription in Settings and use it for scripts, reviews and project chat. Claude Code must be installed on your Mac.
• NewChoose which Claude model Kathe uses, or enter an exact model name, and check that it works before you start.
• NewInstalling the command-line tool also installs a Kathe skill for Claude Code, Codex and other coding agents, so they can make videos with the kathe command from their own plans.
• NewFrom the command line, kathe project create --automatic makes every video without approvals, and kathe models shows and changes the AI model.
• ImprovedSeries finish sooner: each script is reviewed and its video produced as soon as it is ready, while the other scripts are still being written.
• ImprovedOutlines are checked once per episode instead of over and over, and a project that makes no progress for 20 minutes stops instead of running on for an hour.
• FixedWhen your AI usage limit is reached, Kathe says so and names the reset time, instead of “Something went wrong”. Your progress is saved to resume later.
• FixedThe video tab of a short explainer or walkthrough no longer asks you to approve the script while the video is being made.
• FixedLinks in Kathe, like “See what’s new” and the music credits, now open in your browser.

A calmer chat panel

Chat now feels like part of the app, and the update window points you to what’s new.

• ImprovedThe chat panel runs the full height of the window and slides open and closed.
• ImprovedPress Enter to send a chat message, or Shift+Enter for a new line.
• ImprovedWhen an update is available, Kathe links to what’s new on this page.

Faster series and clearer status

Series videos start as soon as each script is ready, Kathe shows what needs you at a glance, and it asks before stopping work.

• NewSeries episodes start production as soon as their script is reviewed, without waiting for the rest.
• NewProcessing settings: choose how many AI tasks and videos run at once.
• NewProject chat can revise scripts and visuals and re-run narration and rendering for you.
• NewA System theme that follows your Mac’s light or dark appearance.
• NewVideos made from an older script or settings are marked “May be outdated”.
• ImprovedScripts waiting for your review are marked in orange everywhere, with a Review button on the project.
• ImprovedQuitting or closing the window asks before stopping work in progress.
• ImprovedKathe slows down and retries when your AI provider limits requests.
• ImprovedVoice, music and other preferences can change while work runs.
• ImprovedSettings use one consistent layout, and Kathe stays quiet when idle.
• FixedExporting failed for some projects.
• FixedPrompts about unsaved changes sometimes didn’t appear.
• FixedReading pauses could stop narration late in production.

First launch

Kathe for Mac is here.