O
OpenAI: gpt-6-astra
gpt-6-astra
1.1M context128K outReasoningToolsParallel toolsVisionFilesCacheStructuredWeb searchComputer useStreamingSystem msg
Released Sep 4, 2026Knowledge cutoff Apr 2026Updated Sep 5, 2026
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon agentic tasks that involve computer and browser use.
Mode chatTokenizer GPTReasoning levels maxModerated
Pricing
Input price
$1.50/ 1M tokens85% off
Output price
$7.50/ 1M tokens85% off
Compatible endpoints openaiVendor OpenAI
Uptime
Performance
Loading performance data...
Usage & Ranking
Loading usage...
Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| include_reasoning | All providers | - |
| max_completion_tokens | Some providers | - |
| max_tokens | All providers | - |
| reasoning | All providers | - |
| reasoning_effort | All providers | - |
| response_format | All providers | - |
| seed | All providers | - |
| structured_outputs | All providers | - |
| tool_choice | All providers | - |
| tools | All providers | - |