Overview
Narrative arc of U.S. labs releasing competitive open-weight frontier models against Chinese open leaders (DeepSeek, Kimi, GLM) and closed U.S. frontier APIs. inkling (Jul 2026) is a major milestone as largest U.S. open-weights release from thinking-machines-lab.
Timeline
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2026-07-16: kimi-k3 2.8T resets open-weights size ceiling; pairs with inkling open-weight wave (2026-07-17-moonshot-kimi-k3-28t-open-source)
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2026-07-15: inkling 975B/41B MoE Apache 2.0 (2026-07-16-thinking-machines-inkling-official)
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2026: Ongoing rivalry with nemotron-3-ultra, Chinese opens, and closed gpt-56 / Claude
Key Players
Analysis
Open weights enable self-host and fine-tune; quality and factual accuracy still lag closed frontier for many workloads. Enterprise customization thesis (Tinker) is the commercial bet.