Muna
Compiled open models behind the OpenAI and Anthropic APIs, about 40% below OpenRouter.
Muna is an inference service for running open AI models through APIs compatible with OpenAI and Anthropic SDKs. It addresses GPU utilization by compiling each model into a self-contained binary served by a custom inference runtime that co-locates multiple models on a single GPU, loading models on demand and evicting them when idle.
The service offers chat completions and text embeddings across models including Gemma 4 26B, Qwen 3.8 27B, Nomic Embed Text v1.5, and Qwen 3 Embedding 8B, with additional models listed as coming soon. Clients point existing OpenAI or Anthropic SDKs at Muna's endpoints. The runtime supports on-demand loading, multi-model co-location, and idle eviction, with compiled binaries that start serving in seconds.
Muna is aimed at AI teams serving open models. Pricing is usage-based, with per-million-token rates for input, cached input, and output tokens on chat models, and per-million-token rates for embeddings.
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