Mistral Granted US Patent on AI Tool Calls in Under Four Months

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French AI company Mistral has been awarded a US patent related to tool calls, a core mechanism used in AI agent systems. The patent was granted in just 118 days, which is notably faster than the typical patent review timeline. The approval was made without any prior public notice, raising concerns in the AI developer community. Tool calls are widely used across the industry, meaning the patent could have broad implications for other AI companies and open-source projects. The news has sparked discussion about the patentability of fundamental AI techniques.

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