GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.
GPT-6 Astra by openai is offered by 42 providers on this page. Public prices are shown for 40 of them. Its official list price is $10.00 per 1M input tokens and $50.00 per 1M output tokens. No paid channel is priced below the official list price. Prices vary about 1.3× across the providers that host it. It also has 1 free ($0) channel; free tiers usually carry rate limits, and subscription-covered access bills $0 per token only after the subscription fee.
Artificial Analysis rates it 52.7 on the Intelligence Index, with 76.9 for coding and 51 for agentic tasks. Against its lowest blended price of $20.00 per 1M, that is roughly 3 index points per dollar, which is the value ratio the leaderboards rank on. Median output speed is 66 tokens per second, with 265.1s to the first token. Running one task of the Artificial Analysis suite costs about $3.2575, which reflects how many tokens its reasoning consumes rather than the unit price alone.
The context window is 1,050,000 tokens at the reference host, but hosts report different limits, from 271,999 to 1,050,000, so the usable window depends on the provider you pick. It supports reasoning, tool use, and structured output. Accepted input modalities are Text, Image, and PDF. Its training knowledge cuts off at 2026-04-30.
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| GitLab Duo duo-chat-gpt-6-astra | Cloud | Free | $0 | $0 | 1,050,000 | 128,000 | ||
| OpenAIOfficial | First-party | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| Aixy | Gateway | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| NanoGPT | Gateway | $10.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| Eden AI | Gateway | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| Eden AI openai/gpt-latest | Gateway | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| Prime Inference | Gateway | $10.00 | $50.00 | — | — | 1,050,000 | 128,000 | |
| Neon | Cloud | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| Vivgrid | Gateway | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
| CrossModel | Gateway | $10.00 tiered >272K: $20.00 | $50.00 | $1.00 | $12.50 | 1,050,000 | 128,000 | |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Interleaved thinking (reasoning between tool calls) is declared by 2 of 42 providers.
| Mode | Provider | Input | Output | Cache read | Cache write |
|---|---|---|---|---|---|
| fast | OpenAI | $20.00 | $100 | $2.00 | $25.00 |
| pro | OpenAI | — | — | — | — |
| ultrafast | OpenAI | $60.00 | $300 | $6.00 | $75.00 |
| ultrafast | Amazon Bedrock | $60.00 | $300 | $6.00 | $75.00 |
| ultrafast | Amazon Bedrock | $66.00 | $330 | $6.60 | $82.50 |
1 more channels offer $0 (GitLab Duo); free tiers usually have rate limits and no SLA, excluded from ranking.
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| Agents' Last Exam | — | 59.3 | — | Source ↗ |
| OSWorld | dataset: V2-Offline (v2026.08.08) · v2.0 | 72.6 | partial score | Source ↗ |
| ScreenSpot-Pro | variant: no tools | 92.7 | accuracy | Source ↗ |
| AutomationBench | — | 41.4 | success rate | Source ↗ |
| BenchCAD | variant: with tools | 95.9 | geometric overlap | Source ↗ |
| BrowseComp | — | 91.5 | accuracy | Source ↗ |
| Terminal-Bench | v4.0 | 57.9 | success rate | Source ↗ |
| DeepSWE | v1.1 | 74.1 | resolve rate | Source ↗ |
| FrontierCode | dataset: Extended · v1.1 | 64.5 | score | Source ↗ |
| Terminal-Bench Science | v0.1 | 64.6 | success rate | Source ↗ |
| FrontierMath | dataset: Tier 4 · vv2 | 97.6 | accuracy | Source ↗ |
| GPQA Diamond | — | 96 | accuracy | Source ↗ |
| Humanity's Last Exam | variant: with tools | 57.2 | accuracy | Source ↗ |
| ExploitBench | variant: without production safeguards | 100 | success rate | Source ↗ |
| SRE-Bench | variant: single attempt | 88 | success rate | Source ↗ |
| ARC-AGI-3 | harness: Responses API | 99.9 | RHAE | Source ↗ |
| Artificial Analysis Intelligence Index | variant: max · v4.1.1 | 61 | index score | Source ↗ |
| Artificial Analysis Coding Agent Index | harness: Codex · variant: max · v1.4 | 67 | index score | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.