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It's so easy to google this and find that they all do exactly this. Gemini: https://ai.google.dev/gemini-api/docs/code-execution ChatGPT: https://help.openai.com/en/articles/8437071-data-analysis-wi... Claude: https://claude.com/blog/analysis-tool Reasoning only gets you so far, even humans write code or use spreadsheets, calculators, etc, to get their answers to problems.
you have just linked the fact that they have code executions but not proved that it is needed for strawberry problem. there are multiple ways to disprove this 1. GPT o1 was released and it never supported the tools and it easily solved the strawberry problem - it was named strawberry internally 2. you can run GPT 5.2-thinking in the API right now and deny access to any tools, it will still work 3. you can run deepsee…
My point was much more general, that code execution is a key part of these models ability to perform maths, analysis, and provide precise answers. It's not the only way, but a key way that's very efficient compared to more inference for CoT.