How to use Codex CLI with any AI model
The Codex CLI is OpenAI's terminal coding agent. With AnyModel it runs on GPT-5.5 and can switch to cheaper models by changing one id — all on a pay-per-token balance.
Setup
- 1.Create a free account and copy your API key.
- 2.
Run one command — it writes the config for you:
bash <(curl -fsSL "https://anymodel.org/i?tool=codex&model=gpt-5.6-sol") <YOUR_API_KEY>
On Windows, use the PowerShell variant from your Instructions page (the key is shown there).
- 3.Start coding. Switch models any time by changing the model id — same key, same endpoint.
Popular models for Codex CLI
See all on the models page, or compare two side by side.
FAQ
No. AnyModel is pay-per-token — you start on free credits (1,000,000 tokens, 6,000,000 if you link Telegram) and then pay only for what you use, no subscription.
All of them — GPT, Claude, Gemini, DeepSeek, Qwen and more, through one endpoint. You switch by changing the model id.
By default we keep request history. For sensitive work, turn on Ghost Mode for a zero-retention key — prompts and responses aren't stored on our side.
AnyModel