ollama - 💡(How to fix) Fix Infinity loop in tool calls with Gemma4 + Ollama 0.20.6/0.20.7 [1 participants]

TL;DR

Downgrade Ollama to version 0.20.5 to avoid the infinity loop issue with the gemma4:31b model.

Guidance

• The issue seems to be specific to the gemma4:31b model and Ollama versions 0.20.6 and 0.20.7, so trying other models like qwen3.5 may not reproduce the problem.
• Verify that the issue is resolved by downgrading to version 0.20.5 and testing tool calls with the gemma4:31b model.
• If downgrading is not feasible, consider testing other gemma4 models to see if the issue is specific to the 31b variant.
• Monitor the Ollama version history for a potential fix in future releases.

Notes

The root cause of the issue is unclear, but it seems to be related to the specific combination of Ollama version and gemma4:31b model.

Recommendation

Apply workaround: Downgrade to version 0.20.5, as it is the only known version that resolves the issue with the gemma4:31b model.