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
$2.50 / $15.00 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 | $1.25 | $7.50 | $0.125 | 1.05M | 128K | 99.80% |
| OpenAI | $0.625 | $3.75 | $0.063 | 1.05M | 128K | 99.80% |
| OpenAI | $2.50 | $15.00 | $0.25 | 1.05M | 128K | 99.80% |
| Azure | $2.50 | $15.00 | $0.25 | 1.05M | 128K | 99.95% |
| Azure | $2.75 | $16.50 | $0.275 | 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
- $2.50
- Output
- $15.00
- Cache read
- $0.25
- Cache write
- $3.125
USD per 1M tokens.