OpenAI: GPT-5.6 Terra Pro
OpenAI: GPT-5.6 Terra Pro is a text model from Openai, with a 1.1M-token context window, priced at $2.50 in · $15.00 out / 1M. On Fully Informed you can add OpenAI: GPT-5.6 Terra Pro to a multi-model panel, where it answers independently, debates the other models and gets cross-checked for blind spots.
Vendor OpenaiType Text1.1M contextPrice $2.50 in · $15.00 out / 1M
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GPT-5.6 Terra Pro is the same underlying model as [GPT-5.6 Terra](https://openrouter.ai/openai/gpt-5.6-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.
Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
Related text models
OpenAI: GPT-3.5 Turbo$0.50 in · $1.50 out / 1MOpenAI: GPT-3.5 Turbo (older v0613)$1.00 in · $2.00 out / 1M
Anthropic: Claude Fable Latest$10.00 in · $50.00 out / 1MAnthropic Claude Haiku Latest$1.00 in · $5.00 out / 1MAnthropic: Claude Opus Latest$5.00 in · $25.00 out / 1MAnthropic Claude Sonnet Latest$2.00 in · $10.00 out / 1MFAQ
- What is OpenAI: GPT-5.6 Terra Pro?
- GPT-5.6 Terra Pro is the same underlying model as [GPT-5.6 Terra](https://openrouter.ai/openai/gpt-5.6-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
- What is the context window of OpenAI: GPT-5.6 Terra Pro?
- OpenAI: GPT-5.6 Terra Pro supports a 1.1M-token context window.
- How much does OpenAI: GPT-5.6 Terra Pro cost?
- OpenAI: GPT-5.6 Terra Pro is priced at $2.50 in · $15.00 out / 1M via OpenRouter.
- What are alternatives to OpenAI: GPT-5.6 Terra Pro?
- Comparable text models include OpenAI: GPT-3.5 Turbo, OpenAI: GPT-3.5 Turbo (older v0613), Anthropic: Claude Fable Latest, Anthropic Claude Haiku Latest.
Model data via OpenRouter. Browse all models · Run a panel on Fully Informed