OpenAI shipped GPT-6 Astra on September 3, 2026 and put it in front of paying API users two days later. The ComputingForGeeks technical review confirms the model ID as gpt-6-astra on an OpenAI-compatible endpoint, with a 1,050,000-token context window split 922,000 input / 128,000 output, a knowledge cutoff of April 30 GPT-6 Astra is the most expensive OpenAI has sold on the public API: $10 per million input tokens and $50 per million output, with cached input at $1.00, cache writes at $12.50, batch at $5/$25, a long-context surcharge above 272K tokens at $20/$75, and 2x pricing in Fast mode. The reviewer verified the headline rate w

OpenAI released GPT-6 Astra on September 3, 2026, framing it as "the world's most intelligent and aligned model" and the product of its largest training run to date, executed on more than 100,000 GPUs at the Stargate site in Texas. It is also the first release where earlier OpenAI models supervised the training of the Astra also becomes the first model to hit the "Critical" cybersecurity threshold under OpenAI's Preparedness Framework, which is why advanced cyber capabilities are being gated behind the Daybreak application-based program and the rollout is intentionally phased. Vellum notes that not every benchmark favors OpenAI: Met

OpenAI announced the phased rollout of GPT-6 Astra on September 3, 2026, with CEO Sam Altman calling it a "new capability level" that has changed his workflows and predicting "a boom of entrepreneurship, of creativity, of economic growth, of scientific discovery." Distribution channels for Astra include ChatGPT Plus, P Companies participating in OpenAI's application-based Daybreak cybersecurity program are first in line for access, because Astra is OpenAI's first model to reach the "Critical" internal cybersecurity threshold disclosed earlier in the week, with those advanced cyber capabilities explicitly limited. CNBC notes that two

GitHub announced general availability of GPT-6 Astra in GitHub Copilot on September 4, 2026, positioning it as OpenAI's latest general-purpose model designed for long-horizon autonomous coding and agentic tasks. The changelog notes that in internal testing the model plans and validates as it goes, batches diagnosis wit GPT-6 Astra is available to Copilot Pro+, Max, Business, and Enterprise users and can be selected in the model picker across Visual Studio Code, Visual Studio, Copilot CLI, GitHub Copilot coding agent, the GitHub Copilot app, github.com, GitHub Mobile on iOS and Android, JetBrains IDEs, Xcode, and Eclipse, with rollout