SF·SIX / MODEL PROFILE
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. **Cost note:** pro mode spends far more...
OpenAI GPT-5.6 Terra Pro costs $2.00 per 1M input tokens and $12.00 per 1M output tokens at the standard tier, the lowest default-region price among the 2 providers SF·SIX tracks, from OpenAI. Cached input reads cost $0.20 per 1M tokens. Updated ; prices checked .
- Developer
- OpenAI
- Input modalities
- file, image, text
- Output modalities
- text
- Context tokens
- 1,050,000
- Latest price observation
- 2026-10-17
- Lowest paired standard token quote
- $2.00 input / $12.00 output per 1M tokens
Dated price and provider records
| Provider and channel | Input | Output or native rate | Unit and status | Source and observation |
|---|---|---|---|---|
| AzureOpenRouter | $2.00 | $12.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| OpenAIOpenRouter | $2.00 | $12.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| AzureOpenRouter · EU region | $2.20 | $13.20 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| OpenAIOpenRouter · Fast tier | $4.00 | $24.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| OpenAIOpenRouter · Flex tier | $1.00 | $6.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
Batch and free variants
- GPT-5.6 Terra Pro (batch) · from $1.00 input / $6.00 output per 1M tokens
These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.