Mozilla report: best open AI model trails closed leader by 3 points at 60% of the price
mmitchell_ai · x · 2026-09-16
Mozilla's The State of Open Source AI v1.1 (Sept 2026), with a foreword by CTO Raffi Krikorian, maps where open AI is winning and exposed.
- Best open model trails the closed leader by only 3 points while costing 60% of the price; the gap resets each release cycle.
- "Open weights" ≠ open source: none of the 16 notable open releases ships the data recipe the OSI definition requires.
- Case studies: Māori speech models licensed so data stays with communities, offline cassava-disease diagnosis in East Africa, and Switzerland's fully open national model.
- In six weeks, a major US lab returned to open weights and Washington debated (and declined) a ban.
Related event: Mozilla Report: Open-Weight Models Now Just ~4 Months Behind Frontier(9 posts)→
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