OpenAI · live
The cheapest way to use the GPT API
Latest GPT models, list price
| Model | Input / 1M | Output / 1M | Cached input / 1M | Context |
|---|---|---|---|---|
GPT-6.1 Sol Pro openai/gpt-6.1-sol-pro | $2.00 | $10.00 | $0.1 | 1,050K |
GPT-6.1 Sol openai/gpt-6.1-sol | $2.00 | $10.00 | $0.1 | 1,050K |
GPT-6 Luna Pro openai/gpt-6-luna-pro | $0.1 | $0.5 | $0.01 | 1,050K |
GPT-6 Luna openai/gpt-6-luna | $0.1 | $0.5 | $0.01 | 1,050K |
GPT-6 Sol Pro openai/gpt-6-sol-pro | $2.00 | $10.00 | $0.2 | 1,050K |
GPT-6 Sol openai/gpt-6-sol | $2.00 | $10.00 | $0.2 | 1,050K |
GPT-6 Astra openai/gpt-6-astra | $10.00 | $50.00 | $1.00 | 1,050K |
GPT-6 Astra Pro openai/gpt-6-astra-pro | $10.00 | $50.00 | $1.00 | 1,050K |
GPT-5.6 Luna Pro openai/gpt-5.6-luna-pro | $0.2 | $1.20 | $0.02 | 1,050K |
GPT-5.6 Luna openai/gpt-5.6-luna | $0.2 | $1.20 | $0.02 | 1,050K |
From OpenRouter's public model list, which passes OpenAI's prices through without markup. Refreshed hourly.
Same model, different hosts
Some models are served by several clouds. Prices usually match the list price; when one host is cheaper, routing to it saves money on every token.
GPT-6.1 Sol Pro
- OpenAI$1.00 / $5.00
- Azure$2.00 / $10.00
GPT-6.1 Sol
- OpenAI$1.00 / $5.00
- Azure$2.00 / $10.00
GPT-6 Luna Pro
- OpenAI$0.05 / $0.25
- Azure$0.1 / $0.5
GPT-6 Luna
- OpenAI$0.05 / $0.25
- Azure$0.1 / $0.5
- Amazon Bedrock$0.11 / $0.55
Where GPT usage costs least to buy
| Usage bought → | $20 | $100 | $500 | $1,000 | $2,000 |
|---|---|---|---|---|---|
| Orbio · Card | $17.27 | $85.10 | $424.26 | $848.21 | $1,696.10 |
| smaaart · Card | $19.00* | $95.00* | $505.00* | $1,030.00* | $2,080.00* |
| Direct from the lab · Card | $20.00 | $100.00 | $500.00 | $1,000.00 | $2,000.00 |
| OpenRouter · Crypto | $21.00 | $105.00 | $525.00 | $1,050.00 | $2,100.00 |
| OpenRouter · Card | $21.10 | $105.50 | $527.50 | $1,055.00 | $2,110.00 |
Cheapest per column highlighted. * card processing and tax added at checkout, not in the number. Live quotes, refreshed every 5 minutes.
"Direct" is prepaid credit from OpenAI at face value (platform.openai.com). The others reach GPT through OpenRouter. Cut the token bill itself with batch and caching.
Disclosure: this site is run by the team behind smaaart, one of the options compared. Tables are ranked by price only, from live quotes and published fees, including when smaaart isn't first. How we compare