Developers were already using it. They just didn’t know it was Xiaomi’s.
Hunter Alpha had been available on OpenRouter for some time when Xiaomi’s MiMo AI division confirmed on March 18 that the model is MiMo-V2-Pro, a 1-trillion-parameter agent model designed for tasks that require sustained reasoning across large amounts of context. According to Xiaomi, the model supports a context window of up to 1 million tokens, though this figure has not been independently confirmed outside of Xiaomi’s own materials.
The release is not a single model. Xiaomi simultaneously launched MiMo-V2-Omni, a multimodal model handling audio, image, video, and text, and MiMo-V2-TTS for text-to-speech. All three models were announced together on March 18. None carry independent benchmark evaluations yet.
For practitioners, the access story matters more than the naming. Xiaomi is offering free API access to MiMo-V2-Pro for a limited period through five agent development frameworks: OpenClaw, OpenCode, KiloCode, Blackbox, and Cline. Xiaomi’s official MiMo pages and the KiloCode blog both confirm this partnership arrangement. Free access terms vary and may have changed; verify current availability directly through the partner frameworks before building against it.
All capability claims, agent optimization, complex task handling, the trillion-parameter scale, come from Xiaomi’s own materials and corroborating T3 sources including a Reuters citation via the Times of India. No Epoch AI or arXiv evaluation is available.
The stealth-launch pattern is worth noting for practitioners tracking non-US AI development. A frontier-scale Chinese AI model was running in developer tools before its identity was public. That’s not a marketing story. It’s a supply chain awareness issue.