{
  "slug": "mellum-2-1",
  "name": "Mellum2.1 12B-A2.5B",
  "category": "models",
  "kind": "model",
  "tier": "catalog",
  "what": "JetBrains coding model, 12B with 2.5B active.",
  "what_source": "editor",
  "why": "Featured on Inside the Machine; check the fit before you download.",
  "icon": "Boxes",
  "stack_layer": "model",
  "homepage": "https://huggingface.co/JetBrains/Mellum2.1-12B-A2.5B-Thinking",
  "repo": null,
  "license": "apache-2.0",
  "repo_meta": null,
  "tags": [],
  "seen_in_videos": [
    "_JhhrV3VDqg"
  ],
  "install": [
    {
      "run": "hf download JetBrains/Mellum2.1-12B-A2.5B-Thinking",
      "platform": "any",
      "source": "huggingface_hub CLI docs (generic)",
      "status": "documented, not executed"
    }
  ],
  "verify": [],
  "rollback": [
    {
      "run": "hf cache rm JetBrains/Mellum2.1-12B-A2.5B-Thinking  # or delete it from ~/.cache/huggingface/hub",
      "source": "huggingface_hub cache docs",
      "status": "unverified"
    }
  ],
  "gap_score": {
    "value": null,
    "status": "pending test on Mac Studio"
  },
  "verified_on": "2026-10-15",
  "url_checked": "HTTP 200 on 2026-10-15",
  "hf_checked": "HF API OK 2026-10-15"
}