Mozilla report: open-weight AI only 4 months behind frontier, 8 of OpenRouter's top 10 open
rohanpaul_ai · x · 2026-09-17
Mozilla's new 91-page report finds open-weight models are now only 4 months behind the frontier. Key data: 8 of OpenRouter's 10 most-used models by August token volume were open-weight, 7 of them Chinese-built, with DeepSeek the first open model to lead the platform in weekly requests. Yet the economics are inverted — open models handled only 20% of measured (commercial) usage. Author's takeaway: 78% of developers pair specialized open models with or against general-purpose ones, so competitive advantage is shifting toward whoever can route each task to the right model, not whoever owns one dominant model.
Related event: Mozilla Report: Open-Weight Models Now Just ~4 Months Behind Frontier(9 posts)→
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