US Tech Giants Back Open AI, Anthropic and Amazon Hold Out
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- Major US tech companies collectively shifted their public stance to backing open AI models, per M.G. Siegler's Spyglass column.
- Anthropic and Amazon remain notable holdouts on open-weight models alongside the US government, according to the analysis.
Why it matters: A divergence is now visible between the majority of US tech firms publicly endorsing open-weight AI and three high-profile exceptions — Anthropic, Amazon, and the federal government — making those holdouts the focal point of debate over openness in frontier AI development.
