GPT-6 Astra
OpenAI's next flagship targets complex coding, research, and professional workflows. Compare its published results with independent measurements and check MiniRouter's current API pricing.
Routable on MiniRouter
Use openai/gpt-6-astra via the API →- Context window
- 1,050,000 tokens
- OpenAI documents up to 922,000 input tokens and 128,000 output tokens.
- Reasoning
- low through max
- low, medium, high, xhigh, max. The none and minimal settings are unsupported.
- Tool calling
- Responses required
- OpenAI supports text Chat Completions; Astra tool calls require Responses. Gateway and client compatibility must be checked separately.
- Sampling
- Remove temperature / top_p
- Also remove top_logprobs; Chat Completions does not accept logprobs.
Publisher pricing
Pricing below comes from the linked publisher sources and does not represent a MiniRouter route or price.
| Phase | Input / 1M | Output / 1M | Blended / 1M | Effective | Source |
|---|---|---|---|---|---|
| OpenAI Standard list price | $10.00 | $50.00 | $20.00 | Sep 3, 2026 – open-ended | OpenAI ↗ |
Publisher-reported benchmarks
Results are grouped by unit. Percentage, Elo, and task-count results never share a scale.
| Benchmark | Reported result | Reported by | As of | Source |
|---|---|---|---|---|
| Terminal-Bench 4.0 | 57.9% | OpenAI | Sep 3, 2026 | Announcement ↗ |
| AutomationBench | 41.4% | OpenAI | Sep 3, 2026 | Announcement ↗ |
| GPQA Diamond | 96.0% | OpenAI | Sep 3, 2026 | Announcement ↗ |
- — The announcement is dated September 3; MiniRouter's catalog feed dates this arrival September 4. Catalog availability is refreshed separately from this article.
- — The price table shows OpenAI's Standard list rates. Use the linked model page for current MiniRouter customer rates. OpenAI applies higher full-request rates above 272K input tokens; cache writes and Fast mode have separate pricing.
- — OpenAI documents async tools and steering for Astra. Their availability in OpenAI's API does not establish MiniRouter support for those features.
- — Artificial Analysis labels one evaluation non-reasoning. That source label is not a supported Astra API effort setting; OpenAI documents low through max.
Independent measurements
Artificial Analysis runs its own evaluations and timing against each model's first-party API. These are the only numbers on this page not reported by the publisher.
GPT-6 Astra (max) ranks #2 of 451 model families on their Intelligence Index. Their headline uses the highest-scoring effort setting; every listed setting is below.
- Intelligence Index
- 54.7
- Composite of their evaluations
- Coding Index
- 76.9
- Coding evaluations only
- Blended price
- $20
- USD per 1M tokens, 3:1 input to output, first-party list
- Output speed
- Not measured
- Median tokens per second
- First answer token
- Not measured
- Median seconds, including reasoning
| Setting | Intelligence Index | Coding Index | Blended price | Output speed | First answer token |
|---|---|---|---|---|---|
| GPT-6 Astra (max) ↗ | 54.7 | 76.9 | $20 | Not measured | Not measured |
| GPT-6 Astra (xhigh) ↗ | 54.3 | 75.9 | $20 | Not measured | Not measured |
| GPT-6 Astra (high) ↗ | 53.4 | 77.1 | $20 | Not measured | Not measured |
| GPT-6 Astra (medium) ↗ | 52.2 | 76.7 | $20 | Not measured | Not measured |
| GPT-6 Astra (low) ↗ | 49.3 | 75.7 | $20 | Not measured | Not measured |
| GPT-6 Astra (non-reasoning) ↗ | 47.8 | 76.2 | $20 | Not measured | Not measured |
Source: Artificial Analysis ↗, read Sep 4, 2026. Measured on the model's first-party API, not a MiniRouter route.
What is not independently confirmed
- Publisher-reported results and independent measurements are labeled separately. MiniRouter did not run these benchmarks.
- Benchmark harnesses are not standardised. Results sharing a name across vendors have not been confirmed to use identical runs.
- Publisher pricing can change, and introductory phases have stated end dates.
- GPT-6 Astra is routable through MiniRouter today; live pricing on its model page is authoritative over the publisher figures here.
Related coverage
Other release dossiers and the current MiniRouter catalog.
Sources
- Read at OpenAI ↗
OpenAI GPT-6 Astra announcement
Published Sep 3, 2026
- Read at OpenAI ↗
OpenAI GPT-6 Astra model documentation
Published Sep 4, 2026
- Read at Artificial Analysis ↗
Artificial Analysis model page
Published Sep 4, 2026
Editorial reference revised 2026-09-10. Catalog status comes from the generated routing snapshot.