AI Tools & Prompts October 10, 2026 Mellum2.1 Is 2.5B Active. SWE-bench Is Self-Reported JetBrains shipped Mellum2.1 on Oct 8 on the same 12B MoE. The Hugging Face card lists 47% SWE-Verified. GGUF is still coming soon. AI toolsJetBrainscoding agents