GPQA DiamondVerified
96.1%
GPQA Diamond (AA run)
Models / OpenAI
GPT-6 Astra
GPT-6 · Released 2026-09-03
OpenAI's 3 Sep 2026 flagship. API list $10 / $50 per 1M tokens, 1.05M context, 128K output, knowledge cutoff 30 Apr 2026. ChatGPT ships it as GPT-6 Pro on eligible plans.
Current OpenAI flagship for long-horizon coding, computer use, research, and document work.
Composite75
Context1M
Input / 1M$10
Output / 1M$50
Knowledge cutoff2026-04-30
Output speed64 t/s
Statusflagship
Family profile
Best published score in each covered benchmark family.
81/100 avg
- Reasoning
- 96
- Coding
- 57
- Agentic
- 88
- Long context
- 81
4 tested benchmark families
Editor's note
Editorial depth still needs a desk pass.Benchmark placements
Per-benchmark positions
Where GPT-6 Astra places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.
| Benchmark | Family | Rank | Score | Source | Date |
|---|---|---|---|---|---|
| GPQA Diamond | Reasoning | #1/ 184 | 96 | Artificial Analysis | 2026-09-28 |
| Terminal-Bench | Agentic | #4/ 167 | 88 | Artificial Analysis | 2026-09-28 |
| Humanity's Last Exam | Reasoning | #5/ 186 | 55 | Artificial Analysis | 2026-09-28 |
| SciCode | Coding | #16/ 97 | 57 | Artificial Analysis | 2026-09-28 |
| AA-LCR | Long context | #32/ 184 | 81 | Artificial Analysis | 2026-09-28 |
| AA output speed | Performance | #97/ 195 | Artificial Analysis — output speed | 2026-09-05 |
Family context
Strongest rows in each family
The three highest-scoring models with pages in each capability family. Where GPT-6 Astra shows up, it's highlighted.
ReasoningGPT-6 Astra · 96
- 196
- 295
- 395
Math
- 152
- 252
- 350
CodingGPT-6 Astra · 57
- 174
- 273
- 370
AgenticGPT-6 Astra · 88
- 191
- 289
- 389
Long contextGPT-6 Astra · 81
- 189
- 286
- 385
Newest receipts
6 recentLast 120 days
Benchmark rows added to the public ledger for GPT-6 Astra in the last 120 days. Older rows live in the full table below.
| Benchmark | Family | Score | Source | Days ago |
|---|---|---|---|---|
| AA-LCR | Long context | 80.67% | Artificial Analysis | 24 |
| GPQA Diamond | Reasoning | 96.1% | Artificial Analysis | 24 |
| Humanity's Last Exam | Reasoning | 54.7% | Artificial Analysis | 24 |
| SciCode | Coding | 56.5% | Artificial Analysis | 24 |
| Terminal-Bench | Agentic | 88.39% | Artificial Analysis | 24 |
| AA output speed | Performance | 64 t/s | Artificial Analysis — output speed | 47 |
Family coverage
Best score per family
A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.
Price vs. performance
Where GPT-6 Astra sits on the scatter
Hover any dot for name, score, and input price. Keyboard: tab through the top twelve, or use the ranking below.
AnthropicOpenAIGoogleAlibabaMetaZhipuxAIDeepSeekMiniMaxXiaomiMoonshotOtherMeituanMistralNVIDIACohere
Full benchmark ledger
Every catalog benchmark for GPT-6 Astra. Scores link to the original source; gaps mean no public row exists yet.
6 of 13 catalog benchmarks have a sourced row for GPT-6 Astra.
Reasoning
Humanity's Last ExamVerified
54.7%
HLE (AA run)
Coding
SciCodeVerified
56.5%
SciCode (AA run)
Agentic
Terminal-BenchVerified
88.39%
Terminal-Bench v2.1 (AA run)
Long context
AA-LCRVerified
80.67%
AA-LCR (AA run)
Performance
AA output speedVerified
64 t/s
Median output tokens/s (1k prompt, default provider)
Changelog
Version history
- Re-checked OpenAI API pricing: Standard list still $10 / $50 per 1M tokens (cached input $1.00; cache writes $12.50). ChatGPT Plus now lists GPT-6 Astra; Pro lists GPT-6 Pro.
- GPT-6 Astra GA on the OpenAI API and a phased ChatGPT / AWS rollout. List $10 / $50 per 1M tokens.
Sources
Where the numbers come from
- OpenAI GPT-6 Astra announcement· checked 2026-09-18
- OpenAI API model page· checked 2026-09-18
- OpenAI API pricing· checked 2026-09-18
- Artificial Analysis GPT-6 Astra· checked 2026-09-10
- Vals model page· checked 2026-09-05
Questions this model page answers
Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.
What is GPT-6 Astra?
GPT-6 Astra is a OpenAI model: OpenAI's 3 Sep 2026 flagship. API list $10 / $50 per 1M tokens, 1.05M context, 128K output, knowledge cutoff 30 Apr 2026. ChatGPT ships it as GPT-6 Pro on eligible plans.
What is GPT-6 Astra for?
Current OpenAI flagship for long-horizon coding, computer use, research, and document work.
What does GPT-6 Astra cost?
GPT-6 Astra lists $10 input and $50 output per 1M tokens. Pricing last checked 2026-09-18.
How large is the GPT-6 Astra context window?
GPT-6 Astra publishes a 1M token context window.
What is the VerdictPal status of GPT-6 Astra?
GPT-6 Astra carries Flagship status on the model atlas.
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