{"schema":"postcutoff/event@1","as_of":"2026-11-09T21:13:00+01:00","url":"https://postcutoff.com/e/2026-11-05-thinking-machines-inkling-2-small/","md":"https://postcutoff.com/e/2026-11-05-thinking-machines-inkling-2-small/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-11-05-thinking-machines-inkling-2-small","date":"2026-11-05","date_precision":"day","short_title":"Thinking Machines Lab releases Inkling 2 Small (594B MoE, 17B active) on Tinker, with Apache-2.0 weights promised after safety testing","deck":null,"takeaway":null,"category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Thinking Machines: Inkling 2 Small","url":"https://thinkingmachines.ai/news/inkling-2-small/","type":"official","group":"primary","domain":"thinkingmachines.ai"},{"n":2,"title":"Artificial Analysis: Inkling 2 Small, highest-scoring open-weights model outside China upon weights release","url":"https://artificialanalysis.ai/articles/thinking-machines-releases-inkling-2-small-highest-scoring-open-weights-model-outside-of-chinia-upon-weights-release-it","type":"press","group":"press","domain":"artificialanalysis.ai"},{"n":3,"title":"Mira Murati on X","url":"https://x.com/miramurati/status/2118489804585509192","type":"discussion","group":"reactions","domain":"x.com"},{"n":4,"title":"ARC Prize on X: Inkling 2 Small on ARC-AGI (Verified)","url":"https://x.com/arcprize/status/2118788850742911073","type":"discussion","group":"reactions","domain":"x.com"}],"official":1,"filed":"2026-11-06","updated":"2026-11-07","orgs":["Thinking Machines Lab"],"title":"Thinking Machines Lab releases Inkling 2 Small (594B MoE, 17B active) on Tinker, with Apache-2.0 weights promised after safety testing","summary":"On Nov 5, 2026 Mira Murati's Thinking Machines Lab launched Inkling 2 Small, a 594B-total/17B-active MoE with image input, on its Tinker platform, and said Apache-2.0 weights will follow 'next week' after external safety testing; Artificial Analysis scores it 31 on its Intelligence Index, level with Gemini 3.8 Flash (high), and says it would be the top open-weights model outside China.","key_facts":["ARC Prize (Nov 6, X): ARC-AGI-2 81.7% at $0.27/task and ARC-AGI-1 96.5% at $0.08/task (verified), above every open-weight model ARC has evaluated; ARC says Thinking Machines plans to release the full weights next week. Weights not yet out on Nov 7","594B total / 17B active parameters; 292M-parameter vision encoder; no audio","Trained with 256K context plus compaction","Self-reported: AA Intelligence Index 30.6 (v5.0); SWE-Bench Pro v2 (Hard) 86.3%; DeepSWE v1.1 72.1%; HLE-Diamond 28.7%; MMMU Pro 81.6%","Available now on Tinker (inference, sampling, fine-tuning); weights 'next week', pending external red-teaming","Mira Murati: 'a capable small model' (X)"],"key_numbers":[],"tags":["open-weights","moe","thinking-machines","tinker"],"science":null,"body_md":"## What happened\n\nThinking Machines' second model generation, smaller tier first.\n\n## Why it matters\n\nIf the weights ship, the strongest US open-weights model; our open-weights pick (Kimi K3.1 Pro) is unchanged until then.","disputed":[],"related":[{"id":"2026-10-23-kimi-k3-1-pro","url":"https://postcutoff.com/e/2026-10-23-kimi-k3-1-pro/","date":"2026-10-23","date_precision":"day","short_title":"Moonshot releases Kimi K3.1 Pro","deck":"2.8T MoE, 1M context, 4th on Artificial Analysis behind only Anthropic and Meta, weights promised by Nov 4, cyber data deliberately removed","takeaway":"Once the weights ship, a near-frontier model will be free to download, three points behind the best closed model on a broad index.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":16,"official":6,"filed":"2026-10-24","updated":"2026-11-05","orgs":["Moonshot AI"]},{"id":"2026-07-15-thinking-machines-inkling","url":"https://postcutoff.com/e/2026-07-15-thinking-machines-inkling/","date":"2026-07-15","date_precision":"day","short_title":"Thinking Machines Lab releases Inkling, its first open-weights model","deck":null,"takeaway":null,"category":"open-source","category_label":"Open source","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":5,"official":3,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Thinking Machines Lab"]}],"people":[{"id":"mira-murati","name":"Mira Murati","url":"https://postcutoff.com/person/mira-murati/"}],"posts":[{"id":"x-arcprize-2118788850742911073","title":"“Inkling 2 Small from @thinkymachines on ARC-AGI (Verified): - ARC-AGI-2: 81.7%…”","url":"https://postcutoff.com/p/x-arcprize-2118788850742911073/"},{"id":"x-miramurati-2118489804585509192","title":"“Inkling 2 Small is available today on Tinker, with weights coming soon. It's a capable…”","url":"https://postcutoff.com/p/x-miramurati-2118489804585509192/"}],"videos":[],"models":[],"changes":[{"date":"2026-11-07","type":"edit","text":"ARC-AGI verified scores; weights expected next week (news agent)"},{"date":"2026-11-06","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-11-06","run":null,"sources_read":null,"updated":"2026-11-07","human_review":null,"version":{"date":"2026-11-07"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":189,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":128,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":219,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":158,"in_training_data":false}],"short_url":"https://postcutoff.com/s/thinking-machines-lab-inkling-2"}