Thinking Machines Lab ships Inkling 2 Small, a 594B MoE with 17B active parameters

On November 5, 2026, Thinking Machines Lab introduced Inkling 2 Small, a mixture-of-experts model with 594 billion total parameters and 17 billion active, with image input and variable effort, first available under closed weights on Tinker. For teams evaluating an open-weight ‘flash’ model for agentic coding, the real story is not the parameter total but the gap between today’s closed access and the Apache 2.0 weights promised next week.