OpenAI

GPT-6 Astra

OpenAI frontier flagship with Critical-tier autonomous cybersecurity, extreme token efficiency, and 72.6% on OSWorld 2.0.

#39released Sep 3, 2026·Proprietary·Not disclosed
textimage1.1M ctxreasoning
Intelligence
86.2 #39
AAQI 61.0
Output Speed
82 t/s
TTFT 143 ms · ITL 12.2 ms/tok
Blended price (3:1)
$20 /1M
In $10/M · Out $50/M
Context
1.1M
≈ 2,750 A4 pages · max out 131,072

Quality Domain Radar

6-Axis Frontier Evaluation vs Category Average & Flagship

GPT-6 Astra
Claude Mythos Preview (#1)
Average (68)
Coding (67.2)Mathematics (97.6)Hard Science (GPQA) (96)Agentic & Tool Use (72.6)Knowledge (MMLU) (31.5)Vision / Multimodal (98.2)

Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.

Strengths & Trade-offs

Where it wins

  • 72.6% OSWorld 2.0 — best-in-class computer use
  • Flagship agentic + reasoning scores across the board
  • 131K output tokens — rewrites entire files in one pass
  • Strong tool-use reliability on terminal workflows

Trade-offs to watch

  • $10/$50 premium pricing tier
  • Higher effort levels multiply latency and token spend
  • Closed weights — no self-hosting

Killer Use Cases

OSWorld computer-use agents
Desktop-level control — clicks, typing and app workflows at a benchmark-leading 72.6%.
Terminal-Bench autonomous ops
Long shell sessions: builds, tests, fixes, deploys.
Large-repo refactoring
131K output window handles whole-file and multi-file rewrites.

Developer Quickstart & API

Set OPENAI_API_KEY first — get an API key
curl https://api.openai.com/v1/responses \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "model": "gpt-6-astra",
    "input": "Refactor this function for O(n) time and explain the change."
  }'

Official Resources & Links

API deployment

Compare hosts & latency

Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.

GroqCerebrasTogether AIDeepInfraFireworks AIAWS BedrockAzure AI
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Scores by Source

Head-to-head Live Matchups

Live Specs & Architecture

Under the hood
GPT-6 Astra — undisclosed transformer
  • Reasoning effort levels: low / medium / high / xhigh — one weight set, four budgets
  • Critical-tier autonomous cybersecurity designation
  • 1.1M context with a 131K max output window
  • Extreme token efficiency on long agent runs
Release date
Sep 3, 2026
Architecture
GPT-6 Astra — undisclosed transformer
Parameters
Not disclosed
License
Proprietary
Context Window
1,100,000 tokens
Max Output
131,072 tokens
Modalities
text + image
Cache Pricing
read $1 · write $12.5 /1M
Reasoning
Effort levels
Input Price
$10/M
Output Price
$50/M
Output Speed
82 t/s
Time to First Token
143 ms
Data Updated
Sep 4, 2026

Estimated monthly bill

Estimated monthly spend
$0.00
Calculating savings vs GPT-4o...

Cite & embed

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BibTeX
@misc{llmpodium2026gpt6astra,
  title = {Benchmark Analysis and Intelligence Evaluation of GPT-6 Astra},
  author = {LLMPodium Research},
  year = {2026},
  url = {https://llmpodium.com/models/gpt-6-astra}
}

Embed Score Badge

Add a live Podium Score badge to your GitHub or Hugging Face README — it links back to the live ranking.

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GPT-6 Astra LLMPodium Score
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