GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic tasks where capability and cost need to be balanced.
Modalities
In / out price
$2.00 / $12.00per 1M
Cached price
$0.20per 1M
Context
1M
Max output
128K
Providers
1 routeCompare providers by price, privacy, and speed.
| Anonymous | $2.00$4.00 over 272K, not applied yet | $12.00$18.00 over 272K, not applied yet | $0.20$0.40 over 272K, not applied yet | 1M | 128K | — | — |
Privacy
1 / 4Anonymous routing
Anonymous tier
- Anonymous
- Private
- TEE
- E2EE
Your identity is hidden from the inference provider. The inference provider can see prompt content; zero retention is not guaranteed. Learn more
Features
7Streaming
Tool calling
Reasoning
Vision
JSON/schema
Web search
Prompt caching
Uptime
FAQ
Common questions about GPT-5.6 Terra.