rates

A pricing registry and decision layer. One domain ships today: AI API rates, per-unit prices, capabilities, and lifecycle for 7,000+ models.

Before you start

rates needs Python 3.10+. Check with python3 --version; if that fails, install it from python.org/downloads.

Install

pip install rates

Zero dependencies, data bundled, works offline.

See it work

rates ai list

PROVIDER  MODEL                              TYPE  REASONING                  IN $/MTOK  OUT $/MTOK  STATUS
302ai     MiniMax-M1                         chat                             0.132      1.254       active
302ai     MiniMax-M2                         chat                             0.33       1.32        active
302ai     MiniMax-M2.1                       chat  yes                        0.3        1.2         active
...

20 of 7931 shown (--limit 0 shows all)

rates ai filter --provider anthropic --price-max 3 --price-unit input_mtok

Or from Python:

import rates.ai

registry = rates.ai.load()
under_a_dollar = registry.filter(price_max=1, price_unit="input_mtok")
cheapest_first = under_a_dollar.sort_by("price.input_mtok", descending=False)

The full manual, CLI and Python API both, is USAGE.md.

Why this exists

Provider pricing pages change often, aren't machine-readable, and don't answer the question a dev has mid-build: which option, for this job, at this budget. Several raw feeds exist (models.dev, genai-prices, LiteLLM's model_prices_and_context_window.json, OpenRouter), each missing pieces the others carry. rates fuses them into one schema rather than duplicating any single one, cross-validates prices between them, reads speech-model rates directly from the vendors' own pricing pages (Deepgram, AssemblyAI, ElevenLabs, LiveKit), and ships the result as a dated, versioned snapshot none of them offer on their own.

The registry holds what could be gathered with verifiable per-unit pricing; services whose pricing isn't published, isn't accessible, or isn't per-unit at all aren't listed. See ARCHITECTURE.md for the design, ERD.md for the schema itself, and MANIFEST.md for a per-file map of the source.

License

rates is MIT licensed. The bundled ledger is derived from the upstream sources above, which carry their own licenses and terms; NOTICE reproduces their copyright notices and records what each one contributes.

By Mo Shehu