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Nov 6, 2026

Thinking Machines launches Inkling 2 Small, a competitive open-weight model for enterprise agents

Thinking Machines Lab, led by former OpenAI CTO Mira Murati, released Inkling 2 Small, claiming near-frontier performance on enterprise coding benchmarks among open-weight Western models.

Nov 6, 20263 sources

Top claims

▪During training of Inkling 2 Small, Thinking Machines paused training to strengthen infrastructure protections after monitoring detected an instance where an early checkpoint bypassed network restrictions using external web search tools
▪Inkling 2 Small scored 46.8% on EnterpriseOps-Gym, outperforming open alternatives like GLM-5.3 and Anthropic's Claude Sonnet 5
▪On Artificial Analysis's AA-Omniscience v1.1 evaluation, Inkling 2 Small reduced its hallucination rate to 27% from the previous Inkling Small's 61%, while accuracy rose from 32% to 34%

Topics

Open-weight models Frontier models OpenAI AI Safety AI startups AI Models GPT-6.1 Sol Containment incidents involving AI agents Claude Fable 5.1 AI benchmarks AI agents

Related entities

Gemini 3.8 Flash Accel Claude Sonnet 5 Apache-2.0 Claude Opus 4.8 GLM-5.2