All models
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
File
Image
Text
In / Out price
$1.00 / $6.00 per 1M
Context
1.05M · 128K out
Released
Jul 9, 2026
Providers
Live list prices and uptime across 5 providers serving this model.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output | Uptime 24h |
|---|---|---|---|---|---|---|
| OpenAI | $2.00 | $12.00 | $0.20 | 1.05M | 128K | 99.83% |
| OpenAI | $1.00 | $6.00 | $0.10 | 1.05M | 128K | 99.83% |
| OpenAI | $4.00 | $24.00 | $0.40 | 1.05M | 128K | 99.83% |
| Azure | $2.00 | $12.00 | $0.20 | 1.05M | 128K | 99.73% |
| Azure | $2.20 | $13.20 | $0.22 | 1.05M | 128K | — |
No implicit prompt caching; cache reads require explicit cache control.
Capabilities
Tool calling
Reasoning
Moderated
include_reasoning
max_completion_tokens
max_tokens
reasoning
reasoning_effort
response_format
seed
structured_outputs
tool_choice
Pricing detail
- Input
- $1.00
- Output
- $6.00
- Cache read
- $0.10
- Cache write
- $1.25
USD per 1M tokens.