Hi,
If I select the GPT-5.4 model and set the Reasoning Effort, I get the error shown below. If I set Reasoning Effort to “None,” the error does not occur.
Does anyone know how to resolve this issue?
I’m using Dify v1.13.0, and OpenAI plugin v0.2.10.
Thanks.
Failed to transform agent message: req_id: 7faacf3c34 PluginInvokeError: {“args”:{},“error_type”:“Exception”,“message”:“read llm model failed: request failed: [models] Bad Request Error, Error code: 400 - {‘error’: {‘message’: ‘Function tools with reasoning_effort are not supported for gpt-5.4 in /v1/chat/completions. Please use /v1/responses instead.’, ‘type’: ‘invalid_request_error’, ‘param’: ‘reasoning_effort’, ‘code’: None}}”}
