OpenAI
GPT-6 Astra
GPT-6 Astra is a OpenAI model with 1.05M context, $10 in / $50 out per million tokens, last verified October 1, 2026. Open weights: no. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.
OpenAI describes GPT-6 Astra as its most capable model for complex reasoning, coding and computer use, and the first it gates at the Preparedness Framework's 'Critical' cybersecurity threshold.
Recorded profile verification October 1, 2026Individual provider fields may change
| Specification | GPT-6 Astra |
|---|---|
| Provider | OpenAI |
| Tier | Frontier |
| Context window | 1.05M |
| Max output | 128K |
| Input / 1M tokens | $10 |
| Output / 1M tokens | $50 |
| Weights | Closed |
| Parameters | Not verifiedUnverified |
| Reasoning levels | low, medium, high, xhigh, max |
| Modalities | text, image |
| API model id | gpt-6-astra |
| Released | September 3, 2026 |
Pricing tiers: Standard $10/$50 per MTok (≤272K input); above 272K the full request bills $20/$75. Cached input $1/$2 and cache writes $12.50/$25 for short/long context. Batch/Flex are half Standard; Fast is 2x. Ultrafast is 6x: $60/$300 short, $120/$450 long, through Responses with global/US processing; no EU or other regional inference residency. Regional/FedRAMP processing adds 10% where eligible. Knowledge cutoff Apr 30 2026. Enterprise model access is disabled by default.
Publisher evidence
Published benchmark results
Each result keeps its source date visible. Dates refer to source publication or capture unless the source explicitly states when it measured the result. A missing benchmark is not treated as a zero.
| Benchmark | Score | Source date | Source |
|---|---|---|---|
| Artificial Analysis Intelligence Index [max]GPT-6 Astra (max) | 53 | 2026-10-01 | Artificial Analysis · View source |
| DeepSWE 1.1xhigh, mini-swe-agent; matches Datacurve's independent board (74.1% at $4.43/task, rank 1; board updated 2026-09-22) | 74.1% | 2026-09-03 | OpenAI · View source |
| OSWorld 2.0 (offline)v2026.08.08 offline set, partial reward; vendor research/API evaluation, maximum across evaluated efforts | 72.6% | 2026-09-03 | OpenAI (vendor-reported) · View source |
| GPQA Diamond | 96% | 2026-09-03 | OpenAI GPT-6 Astra evaluation table (vendor-reported; maximum across evaluated efforts) · View source |
| Humanity's Last Exam | 57.2% | 2026-09-03 | OpenAI GPT-6 Astra evaluation table (vendor-reported, with tools; maximum across evaluated efforts) · View source |
Benchmark
DeepSWE 1.1 in context
The full local snapshot puts this model beside the wider field, including cost per completed task.
Local leader
GPT-6 Astra [xhigh]
74.1%
Rows shown
28
Best source-matched Pass@1 per model
Snapshot date
2026-10-01
Mirrored from deepswe.datacurve.ai
Better is toward the top-right (higher pass rate, lower cost). X-axis is reversed to match DeepSWE’s public chart. v1.1 uses average cost, output tokens and steps. Legacy v1 transcriptions are excluded here until an exact primary receipt is retained.
| # | Model | Pass@1 | Cost / task | Tokens / task | Steps / task |
|---|---|---|---|---|---|
| 1 | GPT-6 Astra [xhigh] | 74.1% | $4.43 | 30k | 29 |
| 2 | Gemini 3.8 Flash [high] | 73.8% | $2.36 | 143k | 166 |
| 3 | Claude Opus 5 [max] | 73.6% | $11.84 | 118k | 99 |
| 4 | GPT-5.6 Sol [max] | 72.7% | $8.39 | 60k | 61 |
| 5 | Claude Fable 5 [xhigh] | 69.9% | $13.41 | 80k | 68 |
| 6 | GPT-5.6 Terra [max] | 69.6% | $4.95 | 72k | 76 |
| 7 | GLM 5.3 [max] | 69.0% | $3.99 | 80k | 124 |
| 8 | Kimi K3 [max] | 68.5% | $4.65 | 82k | 98 |
| 9 | Grok 4.6 [medium] | 67.5% | $3.45 | 50k | 70 |
| 10 | GPT-5.6 Luna [max] | 67.2% | $3.03 | 73k | 102 |
| 11 | GPT-5.5 [xhigh] | 67.0% | $7.23 | 46k | 82 |
| 12 | Gemini 3.7 Flash [medium] | 65.5% | $2.03 | 94k | 117 |
| 13 | GLM 5.3 Flash [max] | 63.4% | $0.48 | 73k | 123 |
| 14 | DeepSeek V4-Pro [max] | 62.8% | $0.24 | 106k | 155 |
| 15 | Claude Opus 4.8 [max] | 59.0% | $13.22 | 135k | 120 |
| 16 | Qwen3.8-Max [xhigh] | 57.5% | $3.73 | 95k | 111 |
| 17 | Muse Spark 1.2 [xhigh] | 54.9% | $3.70 | 99k | 101 |
| 18 | Claude Sonnet 5 [max] | 53.8% | $26.40 | 214k | 268 |
| 19 | Grok 4.5 [high] | 53.8% | $2.42 | 36k | 61 |
| 20 | DeepSeek V4-Flash [max] | 53.3% | $0.10 | 108k | 153 |
| 21 | Muse Spark 1.1 [xhigh] | 53.3% | $2.36 | 74k | 96 |
| 22 | GPT-5.4 [xhigh] | 51.8% | $5.65 | 71k | 70 |
| 23 | Gemini 3.6 Flash [high] | 46.7% | $4.42 | 96k | 117 |
| 24 | GLM 5.2 [max] | 43.8% | $3.92 | 78k | 129 |
| 25 | Gemini 3.5 Flash [high] | 36.1% | $3.45 | 76k | 105 |
| 26 | Kimi K2.7 Code | 30.5% | $2.82 | 59k | 149 |
| 27 | Claude Sonnet 4.6 [high] | 29.9% | $5.52 | 76k | 134 |
| 28 | Gemini 3.1 Pro [high] | 11.7% | $2.14 | 28k | 76 |
“Best per model” shows each model’s highest source-matched Pass@1 in this capture; switch to all effort levels to see every retained configuration. Efforts differ across models, so this view is not a comparison at matched effort. The source was generated September 22 and captured October 1. Small gaps may not be statistically meaningful — confirm on deepswe.datacurve.ai.
Best for
- Computer-use agents
- Agentic coding
- Hard reasoning
Watch out
History
GPT-6 Astra timeline
Release and status events for this model that passed two-source verification — dated, sourced, and linked.
- GPT-6 AstraReleaseSeptember 3, 2026
OpenAI launches GPT-6 Astra, its most capable model and the first gated at the Preparedness Framework's 'Critical' cybersecurity threshold — $10/$50 per MTok (≤272K input) with a 1.05M-token context. It debuted at 61.2 on the Artificial Analysis index (v4.1.1; 53, publisher-rounded, on the rebased v4.3.2) and reported 74.1% on DeepSWE 1.1, which Datacurve's board confirms at rank 1.
OpenAI — Introducing GPT-6 Astra
Source receipts
Catalog figures for this model were checked against the following sources.
- OpenAI model card — whole-profile source check October 1 (accessed 2026-10-01)
- OpenAI current API pricing and processing tiers (accessed 2026-10-01)
- OpenAI API changelog — September 3 release; checked October 1 (accessed 2026-10-01)
- OpenAI — Introducing GPT-6 Astra (accessed 2026-09-03)
- OpenAI API pricing (gpt-6-astra $10/$50) (accessed 2026-09-03)
- CNBC — OpenAI launches GPT-6 Astra (accessed 2026-09-03)
- OpenAI model docs — gpt-6-astra (128K max output, effort levels) (accessed 2026-09-05)
- OpenAI API pricing (gpt-6-astra ≤272K $10/$50, >272K $20/$75) (accessed 2026-09-26)
Common questions
GPT-6 Astra
Answered from the verified figures on this page rather than general guidance.