Why model change to gpt-4o-mini when speaking ?

Hi i use chatgpt-4o-latest model on asistan. Now i added an tool and speaking is changed. I see on logs model is changed to gpt4o-mini. Why ? Also i catched a WARN its says tools is not supported in this model. Is can be reason ? But i think chatgpt-4o-latest support tool or or am I wrong. ?

11:10:22:126
[LOG]
Model request started (attempt #1, chatgpt-4o-latest, openai)

11:10:22:266
[LOG]
Model request started (attempt #2, gpt-4o-mini-2024-07-18, openai)

11:10:22:266
[WARN]
Model request failed (attempt #1, reason: (tools is not supported in this model. For a list of supported models, refer to https://platform.openai.com/docs/guides/function-calling#models-supporting-function-calling.))
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