ToolsSeptember 5, 2026via The Decoder
OpenAI rolls out GPT-6 Astra to top-tier ChatGPT plans at half the rate of GPT-5.6 Sol
Why it matters
OpenAI's newest model reaches paying users with significant rate-limiting changes. Practitioners need to understand the new usage tiers to budget for production workloads and evaluate whether Astra's capabilities justify the reduced message quota.
Key signals
- GPT-6 Astra rolled out to Pro, Enterprise, and Business Premium tiers
- Plus users get 5-45 messages per 5 hours with Astra vs. 10-100 with GPT-5.6 Sol
- Astra message allowance is roughly 50% of Sol's rate
- GPT-6 Astra Pro available as separate weekly-capped tier for higher-tier subscribers
- Free and Go users excluded from access
- Plus users expected to receive access soon
The hook
GPT-6 Astra is live for ChatGPT Pro and Enterprise — but at half the message allowance of its predecessor.
OpenAI has rolled out GPT-6 Astra to Pro, Enterprise, and Business Premium users, with Plus users expected to follow soon. Message allowances for the standard model are roughly half of what GPT-5.6 Sol offers: Plus users get an estimated 5 to 45 messages per five hours with Astra, versus 10 to 100 w…