GPT-6.1 Terra Pro

GPT-6.1 Terra Pro

OpenAI🇺🇸openai/gpt-6.1-terra-pro

GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.

Released
Oct 26, 2026
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GPT-6.1 Terra Pro: Pricing, Context & Benchmarks | SurfMind