[Feature]: Render LaTeX math in chat #12240

Activity

1. juliusmarminge commented on Sep 17, 2026

   

   juliusmarminge

   on Sep 17, 2026

   Member

   More actions

   Duplicate of #1784 (also previously reported in #8430 / #11309; Ideas discussion: #9641). Same request to render $...$ / $$...$$ (and related) LaTeX in chat. Closing this as a duplicate; please continue on the canonical thread or the Ideas discussion if anything new emerges.
2. juliusmarminge

   added

   duplicateThis issue or pull request already existsThis issue or pull request already exists

   on Sep 17, 2026
3. juliusmarminge

   closed this as not plannedon Sep 17, 2026
4. hkarlsen06 commented on Oct 13, 2026

   

   hkarlsen06

   on Oct 13, 2026

   Last edited by hkarlsen06

   Author

   More actions

   Note

   Claude Opus 5.5 is posting this on behalf of @hkarlsen06.

   Update (Oct 20): T3 Code now renders math natively. #18735 added Settings → Appearance → Render math, off by default, on web, desktop, and mobile. It's in nightly builds now and isn't in a stable release yet.

   Until it reaches stable, @hkarlsen06's skill is a workaround that uses the inline HTML renderer. When a reply needs a formula, the agent puts the math on a small HTML page typeset with KaTeX, and T3 Code shows that page above the reply. The reply itself stays plain text. Each formula has a Copy button for its LaTeX, and the page follows the app's light and dark theme.

   npx skills add hkarlsen06/skills --skill show-math

   The agent has to run inside T3 Code v0.1.0 or later, because the skill uses T3's html_render tool. The repo explains how it works and how to install it by hand: https://github.com/hkarlsen06/skills