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GPT-6 Astra
OpenAI · Released 3 Sep 2026 · Closed
Near the top for coding and hard reasoning; slower to start on its deepest settings.
Key facts
- Maker
- OpenAI
- Released
- 3 Sep 2026
- Open weights
- No, you use it through the maker's app or paid API
- License
- Owned by the maker, not open
- Memory (context window)
- about 1 million tokens (how much it can read at once)1,050,000 tokens exactly
- Price
- $10 for every million tokens you send, $50 for every million tokens it writesA token is a small piece of a word · checked 17 Oct 2026 · price source
- Official page
- Official page for GPT-6 Astra (openai.com)
Scores
"Independent" = run by an outside group. "Maker's own number" = the company's own claim.
All-roundArtificial Analysis Intelligence Index
53 index points Tied #2 of 17 models scored independent
One combined score from many independent tests of how smart a model is.
setting: max · as of 17 Oct 2026 · source
Chat & writingLMArena Text
1477 Arena score #7 of 15 models scored independent
When real people compare two AI answers side by side without knowing which AI wrote them, which one do they pick more often?
setting: Max · as of 15 Oct 2026 · source
Build websites & appsLMArena WebDev
1777 Arena score #2 of 18 models scored independent
When people ask two AIs to build the same website or app and compare the results, which one do they pick?
setting: Max · as of 17 Oct 2026 · source
CodingLiveBench 2.0 Coding
93.7 score out of 100 #3 of 15 models scored independent
Fresh coding tasks with tests that check the answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
ReasoningLiveBench 2.0 Reasoning
92.7 score out of 100 #2 of 15 models scored independent
Fresh logic and puzzle questions with one right answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
Science questionsGPQA Diamond
96.0% #1 of 6 models scored maker's own number
Very hard science questions in biology, chemistry and physics, written by PhD experts.
as of 3 Sep 2026 · source
New puzzlesARC-AGI-2
95.0% #1 of 11 models scored independent
New picture puzzles a model has never seen, so it has to reason instead of remember. Harder for AI than for people.
setting: Max, $1.12 per task · as of 18 Oct 2026 · source
Agent tasksTerminal-Bench 4.0
58.2 % of tasks done #2 of 6 models scored independent
Can an AI agent finish real jobs in a computer's command line, like setting up software or fixing a broken project?
setting: max, Codex · as of 18 Oct 2026 · source
SpeedOutput speed
57 tokens per second #12 of 16 models scored independent
How many tokens (pieces of words) per second the model writes once it starts answering. Higher is faster.
setting: max · as of 17 Oct 2026 · source
How it compares
The 3 models closest to GPT-6 Astra on the Artificial Analysis Intelligence Index, an all-round score. GPT-6 Astra: 53 index points, Tied #2 of 17 models scored.
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FAQ
Is GPT-6 Astra free and open?
No. GPT-6 Astra is a closed model: you can only use it through OpenAI's own app or paid API.
How much does GPT-6 Astra cost?
The listed price is $10 for every million tokens you send, $50 for every million tokens it writes, checked 17 Oct 2026. A token is a small piece of a word.
What is GPT-6 Astra best at?
Near the top for coding and hard reasoning; slower to start on its deepest settings. Its best result: #1 of 11 models scored on ARC-AGI-2 (new puzzles).
Who makes GPT-6 Astra?
GPT-6 Astra is made by OpenAI. It came out on 3 Sep 2026.