GPT-5.6 Terra
by OpenAI
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
Models
GPT-5.6 Terra
Added 10 July 2026
Overview
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...
How to use / API access
Call via OpenRouter with model id `openai/gpt-5.6-terra`.
- openrouter ·
openai/gpt-5.6-terraDocs
OpenRouter id: openai/gpt-5.6-terra
Benchmarks
- Intelligence Index (artificial-analysis) : 55 index
- Coding Index (artificial-analysis) : 76.7 index
- Agentic Index (artificial-analysis) : 47.4 index
Notes
GPT-5.6 Terra is listed in the EDNA Models directory from the OpenRouter catalogue.
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