# Anthracite Models via Hanzo AI — 1 models > Access all 1 Anthracite model through Hanzo's OpenAI-compatible API. Single API key, unified billing, no rate limit juggling. [Models](https://hanzo.ai/models)/Anthracite A # Anthracite Models via Hanzo AI 1 models available Access all 1 Anthracite model through Hanzo's OpenAI-compatible API. Single API key, unified billing, no rate limit juggling. [Get API Access](https://hanzo.ai/signup)[API Docs](https://docs.hanzo.ai) [Magnum v4 72B33KThis is a series of models designed to replicate the prose quality of the Claude 3 models, specifically Sonnet( and Opus( The model is fine-tuned on top of Qwen2.5 72B.text](https://hanzo.ai/models/anthracite-org/magnum-v4-72b) ## Use Anthracite models via Hanzo One API key. Unified billing. OpenAI-compatible. Works with every existing SDK. [Start Free](https://hanzo.ai/signup)[Browse All Models](https://hanzo.ai/models)