GPT-6.1 Sol pricing: API and ChatGPT plans
GPT-6.1 Sol costs $2 per million input tokens and $10 per million output, with a 1.05M context window. Through AIGROW API credit, it costs $1.00 and $6.25.
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 14 October 2026.
- 1,000 support replies
- $10.00
- Cached input
- $0.10
- Context window
- 1,050,000 tokens
- Released
- 29 Sep 2026
- Weights
- Closed weights
From OpenAI’s own pages, 15 October 2026.
GPT-6.1 Sol costs $2 per million input tokens and $10 per million output tokens on OpenAI’s own API, and $0.10 for cached input. At those prices 1,000 support replies cost $10.00, the 16th most expensive of 42 priced models on our list.
In ChatGPT: GPT-6.1 Sol is included in Plus ($20/mo), Pro (from $100/mo), Business ($25/mo).
chatgpt.com/pricing/ · Read 14 October 2026. Prices can differ by country and include or exclude tax depending on the country.
AIGROW API credit runs GPT-6.1 Sol at $1.00 / $6.25 per million input / output tokens, up to 50% 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-6.1 Sol among the 42 models with a list price.
| Job | 1,000 runs | Among 42 |
|---|---|---|
| Support reply3,000 in, 400 out. | $10.00 | 16th most expensive |
| Document summary25,000 in, 1,000 out. | $60.00 | 16th most expensive |
| Agent task80,000 in (70,000 cached), 3,000 out. | $57.00 | 18th 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.
The small print
What the base rate above leaves out, copied from the maker’s pages: surcharges, discounts, promotions and cache pricing.
OpenAI recommends it to balance intelligence and cost. Requests above 272K input tokens bill 2x input and 1.5x output ($4 / $15, cached $0.20). Cache write $2.50. Batch and Flex 50% off, Fast mode 2x, Ultrafast mode $12 / $60. Data residency adds 10%. Context 1,050,000 with max input 922K.
GPT-6.1 Sol 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
- Google's new flagship against OpenAI's workhorse Sol, at the same $2 / $10 list price until December.
- vs Claude Sonnet 5.5
- The mid-tier models Anthropic and OpenAI now recommend, at the same $2 / $10 list price.
- vs Claude Opus 5.5
- Two models pitched at complex coding work, with Sol at half the Opus price.
- vs GPT-6 Sol
- OpenAI's two Sol releases a week apart, at the same list price with a cheaper cache on 6.1.
- vs GPT-5.6 Sol
- The new Sol against the GPT-5.6 flagship, which still costs twice as much on its promotional price.
- vs GPT-6 Astra
- Tests whether the flagship earns five times the price of the Sol model OpenAI recommends for balance.
- vs Gemini 3.1 Pro (preview)
- OpenAI's new Sol against Google's strongest model, at the same $2 input price with cheaper Sol output.
- vs Gemini 3.8 Flash
- OpenAI's and Google's workhorses, with Flash well under half the Sol price until it doubles in 2027.
- vs Grok 4.7
- xAI's flagship against OpenAI's new Sol, at the same input price with cheaper Grok output.
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 miniOpenAI | $0.75 | $4.50 | 400K | $4.05 |
| GPT-6 SolOpenAINewer model: GPT-6.1 Sol | $2.00 | $10.00 | 1.05M | $10.00 |
| GPT-5.6 TerraOpenAINewer model: GPT-6.1 Sol | $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 |
| GPT-6 AstraOpenAI | $10.00 | $50.00 | 1.05M | $50.00 |
Where the price comes from
Read on 15 October 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-6.1 Sol up to 50% below list price
Through AIGROW API credit, GPT-6.1 Sol costs $1.00 / $6.25 per million input / output tokens against $2.00 / $10.00 at list, and $25 buys $100 of credit. The model id is gpt-6.1-sol.
Prices checked 15 October 2026 · See them by release date