Catalog
OpenAI
GPT-5.6 Sol
OpenAI flagship in the GPT-5.6 family
ReportedGeneral availability July 9, 2026 (reported)
- Main purpose
- Highest-capability GPT-5.6 tier for hard reasoning, coding, and site updates
- Context window
- Not publicly confirmed
- API pricing
- $5 input / $30 output per 1M tokens (reported)
- Access
- ChatGPT, Codex, OpenAI API
Capabilities
Tags
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- website
- agent
- codex
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Key features
- Flagship GPT-5.6 tier
- Default family in ChatGPT (with Terra/Luna)
- API access
Notes
- OpenAI opened the GPT-5.6 family (Luna, Terra, Sol) to general availability on July 9, 2026, per contemporaneous reporting.
- Press summaries cite Sol at $5 / $30 per 1M tokens and strong results on math/reasoning boards; treat those figures as reported until you confirm on OpenAI’s pricing page.
Limitations
- Context window was not published in the sources used here.
- Image and video generation are separate OpenAI products.
Family launch and pricing from August 2026 press/trackers (e.g. FelloAI summarizing OpenAI GA). Confirm on platform.openai.com.
Vendor source