Polyglot AI chat for Obsidian. 30+ providers, agent mode with vault tools, multi-model arena, voice I/O, inline diff rewrite. The v1 successor to Curtis Chat.
At a glance
2026-07-22 shippedv1.x version30+ providersObsidian plugin formMIT license
Highlights
Curtis AgentAI calls tools to read, create, and edit vault notes. Vault-aware — knows your tags, links, and structure.
Multi-model arenaStream one prompt to two models side-by-side. Compare answers in real time, pick the winner.
Inline diff rewriteCursor-style rewrite with Accept/Reject diff modal. Review every change before it lands.
Voice I/OWhisper STT in, browser TTS out. Talk to your vault.
Stack
TypeScript · Obsidian Plugin API · OpenAI / Anthropic / Google / 30+ providers
The polyglot AI chat for Obsidian. Curtis Chat v3 rebranded and rebuilt with a breaking v1 release on 2026-07-22 — eight flagship features landed in one ship:
- Curtis Agent — AI calls tools to read/create/edit vault notes
- Multi-model arena — stream one prompt to 2 models side-by-side
- Inline diff rewrite — Cursor-style rewrite with Accept/Reject diff modal
- @-mention vault notes in chat
- Voice I/O (Whisper STT + browser TTS)
- Cross-conversation search
- Markdown export
- Memory editing UI
Plus a full type-safety pass — every external JSON response shape strictly typed, narrowing at the boundary, zero any in the provider code.
Full feature list and install instructions on the product page. For the rename history (ObsidiBuddi → Curtis Chat → Curtis AI Chat), see Curtis Chat.