Provides a unified view of model metadata (pricing, capabilities, context limits) across different LLM providers. Normalizes provider-specific model names (e.g., claude-3-5-sonnet-20241022) to canonical IDs (e.g., anthropic/claude-3.5-sonnet).

Scripts

Build Canonical Models

Fetches latest model metadata from OpenRouter and updates the registry:

cargo run --example build_canonical_models

Writes to: src/providers/canonical/data/canonical_models.json

Check Model Mappings

Tests provider model mappings and tracks changes over time:

cargo run --example canonical_model_checker

Reports unmapped models
Compares with previous runs (like a lock file)
Shows changed/added/removed mappings
Writes to: src/providers/canonical/data/canonical_mapping_report.json