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Given all the recent conversation about agentic AI, I wanted to get a better first-hand understanding of what is possible at the moment with OpenAI API's from within Emacs. I used [[https://karthinks.com/][Karthik Chikmagalur 's]] [[https://github.com/karthink/gptel][simple LLM client for Emacs, gptel]] for this evaluation.
The tool has come a long way since its initial release 2 years ago. It has become a preferred LLM chat client for many, supporting multiple models and backends. The latest version introduced tool use. This allows the models a way to actually fetch data or take other actions, as [[https://platform.openai.com/docs/guides/function-calling?api-mode=responses][described in OpenAI's documentation]].