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AI Daily Brief — 13 April 2026

A quiet Monday. The week opens without a frontier-class release; industry watchers focus on Mira Murati‘s Thinking Machines Lab, which earlier committed to deploying at least a gigawatt of NVIDIA Vera Rubin compute for training its first models.

Top stories

  • Thinking Machines compute build-out continues. The multi-year partnership with NVIDIA, announced in March, remains the most-watched silent build of Q2 — the lab has not yet shown a model. via Axios

Quiet corners

Open-weight digestion continues: MiniMax M2.7 and GLM-5.1 are the week’s open spotlights. Meta Muse Spark closed-source coverage continues to draw debate.

By the numbers

  • Flagship table unchanged: GPT-5.4 Thinking · Claude Sonnet 4.6 · Gemini 3.1 Pro · Grok 4.20 Beta 2 · Claude Mythos Preview (Glasswing-only) · Muse Spark

Compiled by AI Feed’s editor from publicly reported announcements on 13 April 2026.