OpenAI released GPT-6 Astra on September 4, 2026, its flagship AI model designed for complex tasks such as advanced analysis, software engineering, and scientific research. The model supports a 1 million token context window, enabling it to handle long-horizon agentic tasks involving computer and browser use, according to openrouter.ai.
GPT-6 Astra is available through multiple providers that route user requests based on different modes: Balanced for price and speed, Nitro for fastest response, and Exacto for highest tool-calling accuracy. Pricing is set at $10 per 1 million input tokens and $50 per 1 million output tokens, with actual costs often lower due to caching and discounts. Performance metrics include throughput, latency, and uptime, ensuring reliable access for demanding applications.
The introduction of GPT-6 Astra marks a significant advancement in AI capabilities, particularly with its unprecedented 1 million token context length, which surpasses previous models. This enables more comprehensive document creation and deep research tasks that require maintaining extensive context. The model's ability to integrate computer and browser functionalities positions it as a versatile tool for developers and researchers.
OpenRouter.ai hosts GPT-6 Astra and provides detailed benchmarks and pricing information, allowing users to select providers and routing modes tailored to their needs. The model's release date of September 4, 2026, sets a new standard for large-context AI models in the industry.