Hexgrad

OpenRouter serves 1 Hexgrad model behind one OpenAI-compatible API. Create an OpenRouter API key, point your client at https://openrouter.ai/api/v1, and set the model to an ID such as hexgrad/kokoro-82m. The quickstart has request examples for every supported SDK.

Kokoro 82M has the largest context window of any Hexgrad model on OpenRouter, accepting up to 4,096 tokens per request.

Kokoro 82M is the most recently added Hexgrad model on OpenRouter, listed on April 23, 2026.