# GPT 5.6 Ultra better in Claude Code than in Codex?

> Source: <https://twitter.com/theo/status/2075776733626892542>
> Published: 2026-07-11 07:22:11+00:00

Theo - t3.gg
@theo
gpt-5.6-sol is meaningfully better in Claude Code than in Codex

I'm going to crash out so badly over this
2:58 AM · Jul 11, 2026
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