JetBrains just released Mellum2, an open-source 12B Mixture-of-Experts model under the Apache 2.0 license. By activating only 2.5B parameters per token, it cuts latency and runs more than 2x faster than similarly sized open models. It is built to handle high-frequency plumbing like routing, RAG compression, and sub-agents across software engineering stacks.
Google just made Gemini 3.1 Flash-Lite generally available on its Enterprise Agent Platform, pitching it as the fastest and most cost-effective model in the Gemini 3 lineup. The lightweight model is built for high-throughput agent workflows like live coding and customer support—with early adopter Gladly seeing 60% lower costs and 1.8-second p95 latency. Why it matters: multi-agent automation is finally getting cheap and fast enough to run in real time.
Anthropic just integrated its claude-api skill into CodeRabbit, JetBrains, Resolve AI, and Warp. Originally launched in Claude Code, the tool helps developers automatically handle prompt caching, update agent patterns, and migrate code to new models like Claude Opus 4.7 directly within their IDEs. The skill is also open source on GitHub.
