Effort: max · Max
openaiReleased Sep 3, 2026
OpenAI: GPT-6 Astra
Accepts mid-turn steering and async tool calls, so agents can take new instructions while other tools are still running.
Source description
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...
Context window1.1M
Max output128K
Provider endpoints9
Benchmark results19
Measured performance
All leaderboards ↗Benchmark results
Effort: max · Max
GDPval-AA ↗2.1
1,572.84Effort: max · Max
AutomationBench-AA ↗AA Index 4.3.2 collection
68.49%Effort: max · Max
Effort: max · Max · Harness unreported
SciCode ↗AA Index 4.3.2 collection
56.48%AA · Under reviewEffort: max · Max
Humanity’s Last Exam ↗AA Index 4.3.2 collection
54.68%Effort: max · Max
GDP.pdf ↗AA Index 4.3.2 collection
31%Effort: max · Max
CritPt ↗AA Index 4.3.2 collection
31.71%AA · Under reviewEffort: max · Max
AA-Omniscience ↗AA Index 4.3.2 collection
43.4Effort: max · Max
AA-LCR ↗1.1
80.67%Effort: max · Max
LiveBench Overall ↗2.0 · 2026-10-14 (dataset 2026-09-02)
86.14%Effort: max · single run · equal mean of 7 suites
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)
82%Effort: max · single run
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)
85.2%Effort: max · single run
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)
84%Effort: max · single run
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)
93.7%Effort: max · single run
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)
82.4%Effort: max · single run
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)
83%Effort: max · single run
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)
92.7%Effort: max · single run
Provider measurements
1 configurationSpeed
≈10K input tokens1 requestmedian / 72h
Artificial Analysis · first-party providers · serving endpoint not reported
OpenAI
GPT-6 Astra (Max)
Reasoning max
- Output rate
- 57.4342 tok/s
- Time to first chunk
- 269.346 s
Last checked Source ↗
Methodology 2.2.0 & measurement details
First chunk includes request processing and network time, and may include reasoning.
- Prompt
- long · ≈10,000 input tokens
- Parallel requests
- 1
- Minimum answer
- 1,500 tokens
- Aggregation
- median over 72 hours
- Token counting
- o200k_base
- Benchmark client
- Google Cloud us-central1-a
- Serving endpoint
- Not reported
- Serving region
- Not reported
- Sample size
- Not reported
- Window end
- Not reported
Access & cost
17 quotesPrices across providers
Your token mix
USD · listed token ratesOpenRouter
Catalog quote- Input
- $10.00
- Output
- $50.00
- Cached input
- $1.00
Experiential
Standard · fewer than 272,001 input tokens
- Input
- $10.00
- Output
- $50.00
- Cached input
- $1.00
Catalog list rate. Plan allowances and temporary discounts are separate.
Experiential
At least 272,001 input tokens
- Input
- $20.00
- Output
- $75.00
- Cached input
- $2.00
Catalog list rate. Plan allowances and temporary discounts are separate.
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Max prompt 922000 tokens · Cache write $6.25/M tokens · Web search $0.01/search
OpenAI
via OpenRouteropenai/flex · tier=flex · prompt over 272000 tokens · rate option 1
Conditional rate- Input
- $10.00
- Output
- $37.50
- Cached input
- $1.00
Max prompt 922000 tokens · Cache write $12.5/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $10.00
- Output
- $50.00
- Cached input
- $1.00
Max prompt 922000 tokens · Cache write $12.5/M tokens · Web search $0.01/search
- Input
- $20.00
- Output
- $75.00
- Cached input
- $2.00
Max prompt 922000 tokens · Cache write $25/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $10.00
- Output
- $50.00
- Cached input
- $1.00
Max prompt 922000 tokens · Cache write $12.5/M tokens · Web search $0.01/search
- Input
- $20.00
- Output
- $75.00
- Cached input
- $2.00
Max prompt 922000 tokens · Cache write $25/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $11.00
- Output
- $55.00
- Cached input
- $1.10
Max prompt 922000 tokens · Cache write $13.75/M tokens · Web search $0.01/search
Amazon Bedrock
via OpenRouteramazon-bedrock/us-west-2 · prompt over 272000 tokens · rate option 1
Conditional rate- Input
- $22.00
- Output
- $82.50
- Cached input
- $2.20
Max prompt 922000 tokens · Cache write $27.5/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $11.00
- Output
- $55.00
- Cached input
- $1.10
Cache write $13.75/M tokens · Web search $0.01/search
- Input
- $22.00
- Output
- $82.50
- Cached input
- $2.20
Cache write $27.5/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $20.00
- Output
- $100.00
- Cached input
- $2.00
Max prompt 922000 tokens · Cache write $25/M tokens · Web search $0.01/search
OpenAI
via OpenRouteropenai/fast · tier=priority · prompt over 272000 tokens · rate option 1
Conditional rate- Input
- $40.00
- Output
- $150.00
- Cached input
- $4.00
Max prompt 922000 tokens · Cache write $50/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $60.00
- Output
- $300.00
- Cached input
- $6.00
Max prompt 922000 tokens · Cache write $75/M tokens · Web search $0.01/search
OpenAI
via OpenRouteropenai/ultrafast · tier=ultrafast · prompt over 272000 tokens · rate option 1
Conditional rate- Input
- $120.00
- Output
- $450.00
- Cached input
- $12.00
Max prompt 922000 tokens · Cache write $150/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
Offers for this model
1 offerExperiential Labs · Free access
Daily Astra and Fable promotional tiers
Card and $1 verification required; paid overage can apply.
Checked · Manual checkSource ↗
Model specifications
- Developer
- openai
- Modality
- Language
- Context
- 1,050,000 tokens
- Maximum output
- 128,000 tokens
- Weights
- Not reported
- Released
- Sep 3, 2026
- Provider listed
- Sep 4, 2026
- First discovered
- Oct 16, 2026
Exact identities
- openrouter
openai/gpt-6-astra - experiential
gpt-6-astra - artificial-analysis
2f339a97-9a0d-499a-9cb5-e0db665bfa25 - livebench
gpt-6-astra
Sources
Updated Oct 18, 2026
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