OpenAI releases GPT-5.6

OpenAI releases the GPT-5.6 model family across ChatGPT, Codex, and its API

OpenAI says the Sol, Terra, and Luna variants target different quality, latency, and cost needs, with a gradual rollout across its products and developer platform.

By AI Wire editorialPublished July 9, 2026Checked July 18, 20264 min read

Source brief: AI Wire summarized the primary material linked below. This is not independent reporting or an endorsement of the source’s claims.

What happened

OpenAI has released GPT-5.6 across ChatGPT, Codex, and the OpenAI API, publishing product availability, pricing, safety information, and company-run evaluation results.

The facts in this brief are limited to what the named organizations published. Product capabilities, research results, and future plans are attributed to those sources and should be read as their claims unless independently reproduced.

The useful context

OpenAI says the Sol, Terra, and Luna variants target different quality, latency, and cost needs, with a gradual rollout across its products and developer platform.

Why this matters

The release changes the default capability frontier for many OpenAI users. Its benchmark and efficiency claims are vendor-reported and should be separated from independent comparative testing.

Terms and themes

Models & products
AI agents
Developer platforms

What to watch

Watch for primary documentation, independent evaluations, implementation details, and any update that changes the availability or scope described here. AI Wire will date material changes and keep corrections attached to this record.

Sources & evidence

primary source

OpenAI — GPT-5.6 ↗

Accessed 2026-07-18. Claims above are attributed to this source.

Corrections & updates

No corrections have been issued for this brief.

Last checked: July 18, 2026.

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