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Level Up Your o3/o4-mini Function Calls with OpenAI Cookbook!

Level Up Your o3/o4-mini Function Calls with OpenAI Cookbook!

By Tom - 02 Jun 2025 — 11 minutes read
Quick Take: OpenAI’s new o3/o4-mini models are here, bringing native chain-of-thought (CoT) reasoning for seriously upgraded tool use. This means you need to rethink your prompting: ditch explicit CoT, embrace “developer messages,” and leverage the Responses API for stateful, intelligent function calling. 🚀 The Crunch: Source:… Read More
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