OpenAI › GPT-6.1 Sol › Pricing
$2 / $10per 1M tokens in / out
$0.10cache read · −95%
$0.21per task at medium?
#19on OpenRouter by tokens · 2T / week
Price sheetper 1M tokens
| Input | $2 | list |
| Output | $10 | |
| Cache read | $0.10 | −95% vs input |
| Cache write | $2.50 | +25% vs input |
| Context · max output | 1.1M · 128K | tokens |
Cost per task by effort?
low$0.1347.4
mediumAPI default$0.2149.9
high$0.3251.4
xhigh$0.3952.6
max$0.7252.9
per taskHumanity's Last Exam
Same price per token at every effort; the bill grows with reasoning tokens. max costs 3.4× medium for +3.1 points.
Where to buy5 providers · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| Azure | $2 | $10 | 1.1M |
| lab-openai | $2 | $10 | — |
| OpenAIlab | $2 | $10 | 1.1M |
| openai-media | $2 | $10 | — |
| Amazon Bedrock | $2.20 | $11 | 1.1M |
In OpenAI's line-upper 1M in / out
| GPT-3.5 Turbo 16k | $3 / $4 | −19% |
| GPT-5.1 (2025-11-13) | $1.25 / $10 | −14% |
| o3 | $2 / $8 | −12% |
| GPT-6.1 Sol | $2 / $10 | this model |
| GPT-4o | $2.50 / $10 | +9% |
| GPT-4o (2024-08-06) | $2.50 / $10 | +9% |
| GPT-4o (2024-11-20) | $2.50 / $10 | +9% |
Cheaper for the same workvs GPT-6.1 Sol at medium
| MiMo v2.6 Pro thinkingOpen | -38% | score -3% | $0.13 |
| Claude Haiku 5.5 xhigh | -42% | score -14% | $0.12 |
| GPT-6 Luna max | -68% | score -20% | $0.068 |
| MiMo v2.6 Flash thinkingOpen | -71% | score -21% | $0.062 |
Pricing questions
How much does GPT-6.1 Sol cost?›
$2 per 1M input tokens and $10 per 1M output tokens. Cached input is $0.10. One Intelligence Index task costs about $0.21 at the default effort.
Is GPT-6.1 Sol free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.10 per 1M, 95% below the input price. Writing to the cache costs $2.50 per 1M.
Is GPT-6.1 Sol cheaper than GPT-6 Sol?›
It costs the same per token: $2 / $10.
How does effort change the price?›
The price per token is the same at every effort. Higher effort spends more reasoning tokens: a task costs $0.13 at low, $0.21 at medium, $0.32 at high, $0.39 at xhigh, $0.72 at max.
What is a cheaper alternative to GPT-6.1 Sol?›
MiMo v2.6 Pro at thinking effort costs -38% per task with a score -3% on Humanity's Last Exam.