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OpenAI rolls out GPT-6 Astra to top-tier ChatGPT plans at half the rate of GPT-5.6 Sol

The Decoder · Sep 5, 2026, 7:41 AM UTC

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 with Sol.…

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Technology · The Decoder

OpenAI shares prompting tips for GPT-6 Astra including a blocklist of slop words

OpenAI ships a detailed prompting guide for GPT-6 Astra that shows developers how to make the model take more initiative, avoid AI "slop" phrases, and stop it from overtesting…Read original ↗

Technology · The Decoder

Artificial Analysis overhauls its Intelligence Index after GPT-6 Astra scoring drew skepticism

Artificial Analysis has released version 4.2 of its Intelligence Index, likely in response to criticism that its benchmarks failed to capture GPT-6 Astra's actual progress.…Read original ↗

Technology · The Decoder

OpenAI's GPT-6 Astra hallucinates less but remains vulnerable to hidden prompt injections

OpenAI's GPT-6 Astra hallucinates less than its predecessor and blocks 99.99 percent of direct prompt injections.…Read original ↗

Technology · The Decoder

Benchmarks disagree on GPT-6 Astra, but its human-beating efficiency on ARC-AGI-3 pulls Chollet’s AGI forecast forward

OpenAI's GPT-6 Astra is drawing contradictory benchmark verdicts. Epoch AI puts it out in front with 169 points, while Artificial Analysis rates it no better than its…Read original ↗

OpenAI rolls out GPT-6 Astra to top-tier ChatGPT plans at half the rate of GPT-5.6 Sol

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OpenAI shares prompting tips for GPT-6 Astra including a blocklist of slop words

Artificial Analysis overhauls its Intelligence Index after GPT-6 Astra scoring drew skepticism

OpenAI's GPT-6 Astra hallucinates less but remains vulnerable to hidden prompt injections

Benchmarks disagree on GPT-6 Astra, but its human-beating efficiency on ARC-AGI-3 pulls Chollet’s AGI forecast forward