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Hugging Face AI Updates: June 3, 2026

hugging-face open-weights mixture-of-experts ai-agents computer-use

1. JetBrains Publishes Mellum2, a 12B Mixture-of-Experts Code Model

Hugging Face. JetBrains published Mellum2 on the Hugging Face Hub, a 12-billion-parameter mixture-of-experts language model focused on code. The release continues JetBrains’s push to ship its own open coding models for IDE-integrated assistance. Source

2. H Company Releases Holo3.1 for Fast, Local Computer-Use Agents

Hugging Face. H Company released Holo3.1 on Hugging Face, a computer-use agent model built for fast, local execution of GUI and on-screen automation tasks. The emphasis on running on-device targets agentic workflows that need low latency without cloud round-trips. Source