# Model Definition

## Implementer

- Primary model: `sonnet`
- Fallback model: `openai-codex/gpt-5.3-codex`
- Delegation mechanism: `AskClaude`, `AskPi`

## Reviewer

- Primary model: `opus`
- Fallback model: `openai-codex/gpt-5.5`
- Delegation mechanism: `AskClaude`, `AskPi`
