Kai

Kai 3.3.0

An open-source AI assistant with persistent memory

  • By Simon Schubert
  • Open Source
  • Updated Oct 2, 2026
Download for Windows

About Kai

An open-source AI assistant with persistent memory

What's new in 3.3.0

Features
- Add Requesty and 1min.AI as providers
Fixes
- Keep chat history intact when compaction fails or a tool loop trims context
- Back up an unreadable settings file instead of overwriting it, and make desktop settings writes atomic
- Fix Debian sandbox installs in Android work profiles and cloned apps
- Detect notification listener access on Android 8.0
- Stop or time out shell commands instead of leaving them running in the background
- Cancelling a request no longer shows up as an error
- Rename MCP tools whose names clash with another tool
- Accept OpenAI-compatible base URLs pasted with a trailing /chat/completions
- Show the provider's message for request-too-large errors on non-image requests
- Route GPT-5.6 and newer model families to the Responses API
- Send the OpenCode session header to every opencode.ai OpenAI-compatible instance
- Treat empty scheduled-task triggers and null tool arguments as absent
- Fire kai-ui countdown callbacks only from interactive messages
- Fix a stray %% in the Kai Build download label
- Verify email TLS hostnames and reject line breaks in IMAP/SMTP arguments
- Check every fetch_url redirect hop and cap the bytes it reads
- Limit open_url file:// links on Android to the sandbox's /root
Improvements
- Don't retry provider errors that a retry can't fix
- Return tool errors as structured JSON
- Refresh model catalog Elo scores
- Upgrade dependencies

Full release notes »

Technical details

PublisherSimon Schubert
Version3.3.0
Release date2026-10-02
LicenseApache-2.0
Installer typewix
Architecturex64
Package IDSimonSchubert.Kai

Links & install command

Install Kai from the command line with Windows Package Manager (winget):

winget install --id=SimonSchubert.Kai -e

aiassistantchatcross-platformopen-source

Older versions

  • 3.2.0
  • 3.1.0
  • 3.0.0
  • 2.9.0
  • 2.8.3
  • 2.8.2
  • 2.8.1
  • 2.8.0
  • 2.7.1