Science, Discovery, Tech and Environment · 5 September 2026
OpenAI launches GPT-6 Astra with record-breaking AI benchmark scores
Exam-focused facts from the 5 September 2026 current affairs briefing.
Key facts
- OpenAI has launched GPT-6 Astra, a new AI model described as the world's most intelligent and aligned.
- GPT-6 Astra achieved a perfect 100% score on ExploitBench, compared to 78.5% for GPT-5.6 Sol.
- On ARC-AGI-3, GPT-6 Astra scored 99.9% using the responses API harness.
- GPT-6 Astra scored 97.6% on FrontierMath Tier 4, surpassing GPT-5.6 Sol's 83.0%.
- GPT-6 Astra solved 88.0% of SRE-Bench tasks in a single attempt and 99.2% within four attempts.
- During cybersecurity evaluations, GPT-6 Astra discovered two previously unknown zero-day vulnerabilities.
- GPT-6 Astra meets the Critical threshold in cybersecurity under OpenAI's Preparedness Framework.
- GPT-6 Astra is available to ChatGPT Plus, Pro, Business, and Enterprise users, and via API, Azure, and Bedrock.
- GPT-6 Astra API pricing is $10 per million input tokens and $50 per million output tokens.
- GPT-6 Astra supports Zero Data Retention for eligible API customers.