Yesterday, I had it think for 194 seconds. At some point near the end, it said "This is getting frustrating!"
> max_tokens:The maximum length of the final response after the CoT output is completed, defaulting to 4K, with a maximum of 8K. Note that the CoT output can reach up to 32K tokens, and the parameter to control the CoT length (reasoning_effort) will be available soon. [1]