Override default model names

Use ANTHROPIC_DEFAULT_*_MODEL environment variables to point each model tier at a specific model ID.

bash

# Override the default Sonnet model
export ANTHROPIC_DEFAULT_SONNET_MODEL="claude-sonnet-4-6"

# Override the default Opus model
export ANTHROPIC_DEFAULT_OPUS_MODEL="claude-opus-4-7"

# Override the default Haiku model
export ANTHROPIC_DEFAULT_HAIKU_MODEL="claude-haiku-4-5-20251001"

# Then start Claude Code — it picks up the overrides
claude

View Full Module