GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning mode set to pro for higher-quality responses on complex tasks. Pro mode spends far more reasoning tokens per request, so a typical request costs several times more than GPT-6.1 Sol and takes much longer to complete. It is intended for hard, high-stakes problems where the extra accuracy justifies the cost; for everyday coding, agentic, and chat workloads, use GPT-6.1 Sol instead.
Capabilities
How to use
Tip: Give context and say what format you want the answer in.
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