Topic

Open-weight models: what changed, week by week

Open-weight model releases: license, size, and whether you can run them yourself.

• #2 · October 26, 2026

  DeepSeek Flash lands in Token Pass, OpenAI takes on COBOL, and Claude Code warns before costly resumes

  Issue #2 (Oct 19–26, 2026): DeepSeek V4.1 Flash 1017 (MIT weights, now in Vercel Token Pass), OpenAI's low-resource language results, Claude Code v2.1.304–306, Vercel WebSockets GA, Tess-4.5-27B, and DeepSeek's Search & Fetch APIs.

  Read: 1. DeepSeek V4.1 Flash 1017: open weights, shorter outputs, now in Token Pass · 5. Tess-4.5-27B: a coding model for your laptop

• #1 · October 19, 2026

  Argon goes GA, two open giants drop, and Claude Code stops burning your cache

  • Two big open-weight models shipped: Meta's Muse Spark Open (816B/42B active, custom license) and Reflection Beam 1.0 (501B/23B active, Apache 2.0, 81.6% SWE-bench Verified).

  Read: 2. Meta's Muse Spark Open: big, multimodal, open weights · 3. Reflection Beam 1.0: Apache 2.0 and strong at code

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