GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.
Details
| Field | Value |
|---|---|
| id | openai-gpt-6-astra |
| family | gpt-astra |
| modality | text+image->text |
| context_length | 1050000 |
| max_input_tokens | 922000 |
| max_output_tokens | 128000 |
| knowledge_cutoff | 2026-04-30 |
| release_date | 2026-09-04 |
| is_open_weights | no |
| supports_tool_call | yes |
| supports_reasoning | yes |
| supports_structured_output | yes |
| supports_attachment | yes |
| input_modalities | text, image |
| output_modalities | text |