# GPT-5.6 Terra Pro — price & specs

Source: https://modelbank.ai/models/gpt-5.6-terra-pro · updated 2026-11-12 · ModelBank

| Field | Value |
|---|---|
| Vendor | OpenAI |
| Input price | $2 / 1M tokens |
| Output price | $12 / 1M tokens |
| Cached input | $0.2 / 1M tokens |
| Context window | 1,050,000 tokens |
| Max output | 128,000 tokens |
| Input modalities | file,image,text |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | — / — |
| Released | 2026-07-09 |
| Retirement date | none announced |

## About

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...

## Price history

- 2026-09-24: $2 in / $12 out


JSON: https://modelbank.ai/api/v1/models/gpt-5.6-terra-pro