# Varun Mohan says Gemini 4 Carbon performs well on the AGY harness

> Original title: Amazing, great to see this. Gemini 4 Carbon is a great model and performing well on the AGY harness. Excited for you all to try it soon!

- Source: Varun Mohan
- Published: 2026-10-31T07:22:39.000Z
- Bad Influence: https://badinfluence.news/items/alcncx85fikn1u98t561zhpi6
- Original: https://x.com/_mohansolo/status/2116430633589408141

## Summary

Varun Mohan says Gemini 4 Carbon is a great model and is performing well on the AGY harness. He says he is excited for people to try it soon. A quoted post from @wenhaocha1 reports that Gemini 4 Carbon scores 53 FCI and a 54 pass rate on FrontierCS 2.

## Post

Amazing, great to see this. Gemini 4 Carbon is a great model and performing well on the AGY harness. Excited for you all to try it soon!

## Quoted post @wenhaocha1

> Gemini 4 Carbon scores 53 FCI and 54 pass rate on FrontierCS 2. It’s an impressive jump from Argon to Carbon in just a few weeks. We also work with @antigravity to improve the evaluation in long-horizon runs. model and harness are co-evolving! 🐱

https://x.com/wenhaocha1/status/2116412830610235564