GPT-5.6 Sol can run inside Claude Code

There are two ways to do it, here’s how:

Option 1, the official plugin:

/plugin marketplace add openai/codex-plugin-cc

/plugin install codex@openai-codex

/reload-plugins, then /codex:setup

That unlocks /codex:review, /codex:adversarial-review, and /codex:rescue. Claude writes, GPT critiques, you ship.

Option 2, the proxy. One alias makes Sol your main model:

alias claudex=‘CLAUDE_CODE_SUBAGENT_MODEL=gpt-5.6-sol CLAUDE_CODE_ALWAYS_ENABLE_EFFORT=1 claude –model gpt-5.6-sol’

Bonus: Claude Code lets you set subagent model and effort yourself.

Sol Ultra runs can burn several times the tokens of a base run, so right-sizing delegated work saves real money.

1 comment

GPT-5.6 Sol can run inside Claude Code

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