OpenAI: GPT-5.6 Terra Pro
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
Modalities
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In / out price
₩3,510 / ₩21,060
1M
Context
1.05M
Released
Jul 9, 2026
Apps
Apps that use this model the most.
| Apps | tokens |
|---|---|
| Hermes Agent | 11.32T |
| Zazen (Freebuff fork) | 3.16T |
| Cline | 2.56T |
| Kilo Code | 2.44T |
| pi | 1.59T |
| OpenClaw | 1.05T |
| Codex | 938.81B |
| DeepSeek Harness | 847.26B |
| Portkey AI | 639.39B |
| HighLevel | 375.1B |
| ISEKAI ZERO | 364.56B |
| Framer | 348.63B |
| Hello Minds, powered by Ethoswarm | 316.97B |
| ZCode | 279.83B |
| Descript | 253.44B |