GPT-5.6 Terra

Pricing — 1 offering(s)

Showing the active price and any recorded history. Full pricing history is available via the paid API — see API docs.

Capability profile

Operator guidance

The mid tier of the GPT-5.6 family (launched 2026-07-10 alongside Sol and Luna). Route here when Sol's price isn't justified but Luna's cost-optimized tier is too limited for the task.

Use cases

• General-purpose workloads that balance intelligence and cost — OpenAI's own positioning for this tier

Limitations

• instruction-following and multilingual ratings omitted — re-checked 2026-07-20 (live browser fetch of openai.com/index/gpt-5-6/ in full, the OpenAI Help Center's 'GPT-5.6 in ChatGPT' article, and the GPT-5.6 system card at deploymentsafety.openai.com/gpt-5-6) and still no distinct per-tier claim exists on any OpenAI-owned page for either dimension; rather than infer a rating, this doc leaves them out
• speed rating added 2026-07-20 (previously omitted) — a fuller re-read of the GA launch page's 'Availability and pricing' section (not just the per-tier spec pages the original pass checked) found 'Luna, our fastest and most affordable model,' letting Terra be rated by elimination as the middle tier — a within-family relative rating, not a distinct sourced claim for Terra itself
• Capability ratings are qualitative, not a single cited benchmark run

Citations

• OpenAI API pricing
• OpenAI models
• GPT-5.6: Frontier intelligence that scales with your ambition