Model tracker / OpenAI
GPT-6 Astra
GPT-6 Astra is a frontier model from OpenAI, released 3 September 2026. At OpenAI it costs $10.00 per million input tokens and $50.00 per million output tokens, with a 1.1M-token context window.
- Made by
- OpenAI
- Released
- 2026-09-03
- Status
- Generally available
- Tier
- Frontier
- Weights
- Closed
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Input
- text, image
- API id
gpt-6-astra
GPT-6 Astra price at OpenAI
US dollars per million tokens. Blended is 3 input tokens for every output token, one number to compare on.
| Provider | Input | Output | Cached input | Blended | Batch | Checked |
|---|---|---|---|---|---|---|
| OpenAI · maker | $10.00 | $50.00 | $1.00 | $20.00 | 50% off | 2026-10-15 |
- OpenAI: Prompts over 272K input tokens cost 2x input and cache, 1.5x output for the whole request. Cache writes 1.25x input. Flex is also 50% off; Fast mode costs 2x; Ultrafast mode costs 6x ($60 in / $300 out). Regional (data residency) endpoints +10%.
GPT-6 Astra benchmarks
| Benchmark | Score | What it measures | Reported by |
|---|---|---|---|
| LMArena text score | 1477 | Elo-style score from people voting between answers | Independent |
Scores reported by a model's maker aren't independently checked.
Models like GPT-6 Astra
Other frontier models closest in price, at each maker's own price or the cheapest provider.
| Model | Input | Output | Context | Weights |
|---|---|---|---|---|
| GPT-6 Astra | $10.00 | $50.00 | 1.1M | Closed |
| Claude Fable 5.1 Anthropic | $10.00 | $50.00 | 1M | Closed |
| Claude Opus 5.5 Anthropic | $4.00 | $20.00 | 1M | Closed |
| Muse Wonder Meta | $4.00 | $20.00 | 1M | Closed |
| Gemini 4 Argon Google | $2.00 | $10.00 | 1M | Closed |
| Mistral Large 4 Mistral AI | $0.68 | $2.09 | 1M | Open |
Compare them all in the model tracker →
GPT-6 Astra on dbggr
- Use your Claude or ChatGPT plan for coding agents: which tools are allowed, what they do and what they cost Article, 2026-10-14
- Eight US states sue OpenAI as the EU opens its first AI Act test case over lab agents Daily, 2026-10-14
- Gemini 4 Argon is out for every developer at $2/$10, and doubles to Claude Opus 5.5's price on 1 December Daily, 2026-10-13
- Meta's Muse Wonder costs as much as Claude Opus 5.5: $4 in, $20 out per million tokens Daily, 2026-10-12
- Haiku 5.5 and four-cent decision models: the AI price war reaches the bottom tier Saturday edition, 2026-10-10
- How to write instructions for AI agents: what's tested and what's vibes Article, 2026-10-09
- OpenAI publishes 722 AI-written math papers, claiming proofs of the quasi-Riemann hypothesis and Unique Games Daily, 2026-10-06
- Aleph Alpha releases Kolibri, an Apache-licensed German-English model Daily, 2026-10-03
GPT-6 Astra FAQ
How much does GPT-6 Astra cost?
GPT-6 Astra costs $10.00 per million input tokens and $50.00 per million output tokens at OpenAI, and $1.00 per million cached input tokens, with 50% off for batch requests. Prices are list prices in US dollars, last checked 15 October 2026.
What is GPT-6 Astra's context window?
GPT-6 Astra takes up to 1,050,000 tokens in one request and writes up to 128,000 tokens in one response.
Is GPT-6 Astra open weight?
No. GPT-6 Astra is only available through OpenAI's API; OpenAI doesn't publish the weights.
Where can I use GPT-6 Astra?
GPT-6 Astra is available from OpenAI. At OpenAI, call it as gpt-6-astra.