OpenAI released GPT-6 Astra on September 3 after training it on more than 100,000 GPUs, the company’s largest-scale model run to date. The launch coincided with a recovery in semiconductor stocks that had been under selling pressure since late July. OpenAI reported scores of 100% on ExploitBench, 98% on FrontierMath Tier 4 and 99.9% on ARC-AGI-3, results that led OpenAI President Greg Brockman to describe Astra as a potential entry into the AGI era. Access began with selected cybersecurity organizations through the Daybreak program before expanding to ChatGPT Plus, Pro, Business, Enterprise and API users. Semiconductor sales reached $146.8 billion in July 2026, up 6.4% from June and 135.1% from July 2025. OpenAI has called Astra’s cybersecurity capability critical and added strengthened safeguards for its advanced cyber features, while Daybreak gives defensive cybersecurity applications priority.