# OpenAI Unveils GPT-5.6 Sol, Terra and Luna — Rollout Gated by US Government Review

*2026-07-06 22:02 UTC · AI · 1 min read*

> OpenAI split GPT-5.6 into three priced tiers — Sol, Terra, Luna — but a US government-requested review is keeping the rollout limited to about 20 partner organizations for now.

OpenAI introduced its GPT-5.6 family on June 26, split into three durable tiers instead of one adjustable model: Sol (flagship), Terra (balanced), and Luna (fast and affordable). Pricing is set at $5/$30 per million input/output tokens for Sol, $2.50/$15 for Terra, and $1/$6 for Luna — with Terra landing at roughly half the cost of GPT-5.5.

Sol and Terra set new benchmark records in coding, cybersecurity, and genomics, while Luna performs close to GPT-5.5 levels despite its lower price. The models add a "max" reasoning mode for deeper inference and an "ultra" mode that coordinates multiple subagents on complex tasks.

Rollout is unusually restricted: at the request of the US government, OpenAI limited initial access to around 20 trusted partner organizations, sharing their participation list with officials. The move follows a June 2 executive order requiring federal agencies to benchmark frontier AI models for safety before wide release. OpenAI says general availability is planned "in the coming weeks," with a Cerebras-powered deployment reaching up to 750 tokens per second for select customers arriving in July.

## Sources

- [edenai.co](https://www.edenai.co/post/gpt-5-6-sol-benchmarks-pricing-api-access-guide)
- [buildfastwithai.com](https://www.buildfastwithai.com/blogs/ai-news-today-july-6-2026)

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TechTools News · https://techtools.cz/tools/news/article/1959-openai-unveils-gpt-5-6-sol-terra-and-luna-rollout-gated-by-us-government-review
Česká verze: https://techtools.cz/tools/news/clanek/2032-openai-predstavil-gpt-5-6-sol-terra-a-luna-nasazeni-brzdi-proverka-americke