GPT-6 Astra
OpenAI · Proprietary · Released Sep 4, 2026 · openai/gpt-6-astra
Best $10.00 in / $50.00 out via OpenAI
1.05M contextVisionToolsReasoningStructured outputPrompt caching
Available from 9 providersUSD / MTOK · PRICES 24 MINUTES AGO · SPEED 3 MINUTES AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 OpenAIFLEX1ST PARTY | $5.00 | $25.00 | $0.50 | 1.05M | — | ✕ | ✕ | 99.8% |
 CheaperInferenceDIRECTMARKETPLACE | $6.50 | $32.50 | — | — | — | ✕ | ✕ | — |
| CheaperInferenceDIRECTMARKETPLACE | $7.50 | $37.50 | — | — | — | — | — | — |
| OpenAI1ST PARTY | $10.00 | $50.00 | $1.00 | 1.05M | — | — | — | 100.0% |
 Azure | $10.00 | $50.00 | $1.00 | 1.05M | — | 2.7s | 55 tok/s | 100.0% |
 Amazon Bedrock | $11.00 | $55.00 | $1.10 | 1.05M | — | ✕ | ✕ | 100.0% |
| Azure | $11.00 | $55.00 | $1.10 | 1.05M | — | — | — | 100.0% |
| OpenAIPRIORITY1ST PARTY | $20.00 | $100.00 | $2.00 | 1.05M | — | — | — | 100.0% |
| OpenAI1ST PARTY | $60.00 | $300.00 | $6.00 | 1.05M | — | — | — | 100.0% |
TTFT/TPS: median (P50) over trailing 504h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · ✕ = probed, endpoint returned no measurable stream · methodology v1.1 · measured 3 minutes ago
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Pricing variants · USD / MTok in / out
STANDARD
$10.00 / $50.00
per MTok in / out
BATCH
$5.00 / $25.00
async batch
CACHE READ $1.00CACHE WRITE $12.50WEB SEARCH $0.01 / search
Recent changesRSS ↗
Sep 23, 2026endpoint added · cheaperinference6 → 8
Sep 23, 2026endpoint added · amazon-bedrock5 → 6
Sep 5, 2026model added
About
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...
Specifications
Context window1,050,000
Max output128,000
Modalities infile, image, text
Modalities outtext
LicenseProprietary
ReleasedSep 4, 2026
TokenizerGPT
Related
Embed badge
[](https://modelindex.ai/models/openai/gpt-6-astra)Sources
OpenRouter API24 minutes ago
AGGREGATORLiteLLM dataset24 minutes ago
AGGREGATORModelIndex benchmarks3 minutes ago
MEASUREDVerified 24 minutes ago · list prices, not negotiated rates.