Error with Mistral Large Model: Unsupported Tool Use in Streaming Mode

Problem Description

You're encountering an error when using the AI Agent with Bedrock Chat Model (specifically the Mistral Large model) in your workflow. Although the workflow runs correctly with other chat models such as OpenAI or Ollama, when you switch to the Mistral Large model, the following error message appears:

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[ERROR: This model doesn’t support tool use in streaming mode.].

Analysis and Next Steps

This error indicates that the Mistral Large model for Bedrock does not support tool usage when operating in streaming mode. To resolve this issue, consider the following options:

• Switch Chat Model: Use another supported chat model (like OpenAI or Ollama) if streaming tool usage is required.
• Adjust Configuration: If possible, modify the configuration so that tool usage does not rely on streaming mode when using the Mistral Large model.

Review your workflow settings and the model configuration to ensure that they align with the supported capabilities of your chosen chat model.

Additional Setup Details Provided:

• n8n version: 1.77.3
• Database: SQLite (default)
• Execution Process: default
• Container: Docker
• Operating System: Ubuntu 24

These details help confirm that your environment is set up correctly, and the issue is directly related to a model limitation rather than an infrastructure issue.

For more troubleshooting on AI Agent node issues and model compatibility, refer to the AI Agent and Tools Agent documentation on the n8n docs site.