API
9 korr 2026
Introducing the GPT-5.6 model family
GPT‑5.6 is now available across ChatGPT, Codex, and the OpenAI API. The rollout is starting globally and will continue gradually toward full availability over the next 24 hours.
The GPT‑5.6 model family, includes GPT‑5.6 Sol for frontier capability, GPT‑5.6 Terra for a balance of intelligence and cost, and GPT‑5.6 Luna for efficient, high-volume workloads.
In the API, The gpt-5.6 alias routes requests to gpt-5.6-sol. GPT‑5.6 also adds Programmatic Tool Calling, explicit prompt caching controls, persisted reasoning, max reasoning effort, Pro mode, and Multi-agent orchestration in beta for the Responses API. GPT‑5.6 also accepts images at their original dimensions with original or auto image detail.