Context
1.1M
Max output
—
Input / 1M
$10.00
Output / 1M
$50.00
Cached / 1M
$1.00
Cutoff
Apr 2026
About this model
GPT-6 Astra is OpenAI's most capable broadly deployed model, built for the hardest end-to-end work. It excels at complex reasoning, coding, computer use, research, and document creation, and is OpenAI's first model to reach the Critical level of cybersecurity capability under its Preparedness Framework.
Best suited for
- Complex reasoning, multi-step problem solving, coding and software engineering, computer use, agentic workflows, research, and document creation.
Built-in tools
Hosted by the gateway — enable them per request without wiring your own endpoint.
Capabilities
Vision
Accepts images alongside text in the same message.
Files
Accepts file attachments — PDFs, transcripts, spreadsheets.
Tools
Native function calling, so agents can invoke your endpoints.
System prompt
Honours a dedicated system role, separate from the user turn.
Supported parameters
additional_parametersUse this model
OpenAI-SDK compatible, with gateway fallback and routing across providers.
Other Openai models
| Model | Context | Max output | Input | Output | Capabilities |
|---|---|---|---|---|---|
| gpt-4o Chat | — | 16K | $2.50 | $10.00 | Vision, Tools, System prompt |
| gpt-4o-mini Chat | 128K | 8K | $0.15 | $0.60 | Vision, Files, Tools, System prompt |
| gpt-4.1 Chat | 1.0M | 33K | $2.00 | $8.00 | Vision, Files, Tools, System prompt |
| gpt-4.1-mini Chat | 1.0M | 33K | $0.40 | $1.60 | Vision, Files, Tools, System prompt |
| gpt-4.1-nano Chat | 1.0M | 33K | $0.10 | $0.40 | Vision, Files, Tools, System prompt |
| gpt-5 Chat | 400K | 128K | $1.25 | $10.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5-mini Chat | 400K | 128K | $0.25 | $2.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5-nano Chat | 400K | 128K | $0.05 | $0.40 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.1 Chat | 400K | 128K | $1.25 | $10.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.2 Chat | 400K | 128K | $1.75 | $14.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.5 Chat | 1.1M | 200K | $5.00 | $30.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.4-mini Chat | 400K | 128K | $0.75 | $4.50 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.4-nano Chat | 400K | 128K | $0.20 | $1.25 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.4 Chat | 600K | 200K | $2.25 | $18.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.5-pro Chat | 400K | 128K | $30.00 | $180.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.6-luna Chat | 1.1M | 128K | $0.20 | $1.20 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.6-sol Chat | 1.1M | 128K | $5.00 | $30.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.6-terra Chat | 1.1M | 128K | $2.00 | $12.00 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-5.3-codex Chat | 400K | — | $1.75 | $14.00 | Vision, Tools, System prompt |
| gpt-4o-2024-08-06 Completion | 128K | 16K | $2.50 | $10.00 | Vision, Tools, System prompt |
| gpt-4o-mini-2024-07-18 Completion | 128K | 8K | $0.15 | $0.60 | Vision, Tools, System prompt |
| o1 Reasoning | 200K | 100K | $15.00 | $60.00 | Vision, Files, Tools, System prompt, Reasoning |
| o3-mini Reasoning | 200K | 100K | $1.10 | $4.40 | Files, Tools, System prompt, Reasoning |
| o4-mini Reasoning | 200K | 100K | $1.10 | $4.40 | Vision, Files, Tools, System prompt, Reasoning |
| gpt-image-1.5 Image | — | — | — | — | Vision |
| gpt-image-1 Image | — | — | — | — | Vision |
| gpt-image-1-mini Image | — | — | — | — | Vision |
| gpt-image-2-2026-04-21 Image | 400K | 228K | $8.00 | — | Vision, Files, Tools, System prompt, Reasoning |
Pricing & provider details
Openai
openai/gpt-6-astra
- Input · per 1M
- $10.00
- Output · per 1M
- $50.00
- Cached input · per 1M
- $1.00
- Context window
- 1,050,000 tokens
- Max output
- —
- Knowledge cutoff
- Apr 2026
- Auto-router
- Supported
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