Thinking Machines Lab releases Inkling 2 Small (594B MoE, 17B active) on Tinker, with Apache-2.0 weights promised after safety testing
Confirmed
Importance: major (4 of 5)Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- Major (4 of 5)
- Last verified
- 7 November 2026
Your AI and this story
- GPT-6 Astra189 days after its cutoff
- Claude Opus 5.5128 days after its cutoff
- Gemini 4 Argon219 days after its cutoff
- Grok 4.7158 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 128 days before it.
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)
What happened
Thinking Machines’ second model generation, smaller tier first.
Why it matters
If the weights ship, the strongest US open-weights model; our open-weights pick (Kimi K3.1 Pro) is unchanged until then.
Sources
4 sources from 3 sites. Numbers match the chips in the text.
4 sources: 1 primary, 1 press, 2 reactions
Primary
- Thinking Machines: Inkling 2 Smallthinkingmachines.ai, official
Press
- Artificial Analysis: Inkling 2 Small, highest-scoring open-weights model outside China upon weights releaseartificialanalysis.ai, press
Reactions
- Mira Murati on Xx.com, discussion
- ARC Prize on X: Inkling 2 Small on ARC-AGI (Verified)x.com, discussion
Changes
- ARC-AGI verified scores; weights expected next week (news agent)
- Filed