GPT-6 Astra pricing: API and ChatGPT plans
GPT-6 Astra costs $10 per million input tokens and $50 per million output, with a 1.05M context window. Through AIGROW API credit, it costs $2.50 and $12.50.
$25 a month brings $110 of API credit and cancels any time; $25 once buys $100. US dollars per million tokens, standard rate, shortest context band. In ChatGPT, the cheapest plan with it is Plus at $20/mo. Plan prices read 22 October 2026. Number 3 of 256 on the Epoch Capabilities Index by Epoch AI, data of 12 November 2026. CC BY 4.0
- Through AIGROW credit
- $2.50 / $12.50
- 1,000 support replies
- $50.00
- Cached input
- $1
- Context window
- 1,050,000 tokens
- Released
- 3 Sep 2026
- Weights
- Closed weights
From OpenAI’s own pages, 12 November 2026.
GPT-6 Astra costs $10 per million input tokens and $50 per million output tokens on OpenAI’s own API, and $1 for cached input. At those prices 1,000 support replies cost $50.00, the 2nd most expensive of 49 priced models on our list.
In ChatGPT: GPT-6 Astra is included in Plus ($20/mo), Pro (from $100/mo), Business ($25/mo), Business Premium ($125/mo).
help.openai.com/en/articles/6950777-what-is-chatgpt-plus · Read 22 October 2026. Prices can differ by country and include or exclude tax depending on the country.
AIGROW API credit runs GPT-6 Astra at $2.50 / $12.50 per million input / output tokens, 75% below list price. See API credit
What a job costs
Three jobs, 1,000 runs of each, at the list price above, and where each puts GPT-6 Astra among the 49 models with a list price.
| Job | 1,000 runs | Among 49 |
|---|---|---|
| Support reply3,000 in, 400 out. | $50.00 | 2nd most expensive |
| Document summary25,000 in, 1,000 out. | $300 | 2nd most expensive |
| Agent task80,000 in (70,000 cached), 3,000 out. | $320 | most expensive |
The token counts are ours, chosen to look like real work; the prices are OpenAI’s. All three jobs stay under 100,000 tokens a request, below every long-context surcharge on the list.
GPT-6 Astra on real small-business tasks
What the AIGROW benchmark measured when GPT-6 Astra was given 20 office tasks, each marked pass or fail by fixed checks.
- Success rate
- 85% of 20 runs passed (95% interval 64 to 95%), 10th of 36 models.
- Cost per 1,000 passes
- $27.91, failed runs included, worked from list price.
- Answer time
- 11 s median, 38 s at the 90th percentile.
- Strongest and weakest
- Bookkeeping (100% passed) and review replies (0%).
The small print
What the base rate above leaves out, copied from the maker’s pages: surcharges, discounts, promotions and cache pricing.
Requests above 272K input tokens bill 2x input and 1.5x output ($20 / $75, cached $2). Cache write $12.50. Batch and Flex 50% off, Fast mode 2x, Ultrafast mode $60 / $300 since 29 September 2026. Data residency adds 10%. Context 1,050,000 with max input 922K.
GPT-6 Astra against the models it is weighed with
Each comparison puts both list prices side by side and costs the same three jobs on each.
- vs Gemini 4 Argon
- Gemini 4 Argon against OpenAI's flagship, at a fifth of the Astra input price at launch.
- vs Claude Opus 5.5
- The flagships Anthropic and OpenAI point new work to, with Opus at less than half the Astra price.
- vs GPT-6.1 Sol
- Tests whether the flagship earns five times the price of the Sol model OpenAI recommends for balance.
- vs Claude Fable 5.1
- GPT-6 Astra against the previous Claude Fable, at the same $10 / $50 list price.
- vs Gemini 3.1 Pro (preview)
- OpenAI's newest flagship against Gemini 3.1 Pro, which costs a fifth as much on input.
- vs GPT-5.6 Sol
- Tests whether the new flagship earns 2.5 times the price of the model it sits above.
- vs Claude Fable 5.2
- Anthropic's and OpenAI's flagships, with Fable a fifth cheaper than Astra on input and output.
- vs Gemini 4 Carbon
- Google's and OpenAI's flagships, with Carbon at a fifth of the Astra price until December and two fifths after.
Other OpenAI models
| Model | Input | Output | Context | 1,000 replies |
|---|---|---|---|---|
| GPT-6 LunaOpenAI | $0.10 | $0.50 | 1.05M | $0.50 |
| GPT-5.6 LunaOpenAINewer model: GPT-6 Luna | $0.20 | $1.20 | 1.05M | $1.08 |
| GPT-5.4 nanoOpenAINewer model: GPT-6 Luna | $0.20 | $1.25 | 400K | $1.10 |
| GPT-5.4 miniOpenAINewer model: GPT-6.1 Terra | $0.75 | $4.50 | 400K | $4.05 |
| GPT-6.1 TerraOpenAI | $1.00 | $5.00 | 1.05M | $5.00 |
| GPT-6.1 SolOpenAI | $2.00 | $10.00 | 1.05M | $10.00 |
| GPT-6 SolOpenAINewer model: GPT-6.1 Sol | $2.00 | $10.00 | 1.05M | $10.00 |
| GPT-5.6 TerraOpenAINewer model: GPT-6.1 Terra | $2.00 | $12.00 | 1.05M | $10.80 |
| GPT-5.6 SolOpenAINewer model: GPT-6.1 Sol | $4.00 | $20.00 | 1.05M | $20.00 |
| GPT-5.5OpenAINewer model: GPT-6 Astra | $5.00 | $30.00 | 1.05M | $27.00 |
Where the price comes from
Read on 12 November 2026. Each price is the standard rate for the shortest context band, with no batch or priority discount; long-context surcharges, batch rates and promotions are in each model’s small print. No price was taken from a reseller.
Run GPT-6 Astra up to 75% below list price
Through AIGROW API credit, GPT-6 Astra costs $2.50 / $12.50 per million input / output tokens against $10.00 / $50.00 at list, and $25 buys $100 of credit. The model id is gpt-6-astra.
Prices checked 12 November 2026 · See them by release date