OpenAI pricing
OpenAI API Pricing Calculator
Includes text models with cached input support on selected tiers.
Quick estimate
No API key needed. Pick a model, paste your question, choose the answer length, and get a close cost estimate.
$5/M input$30/M output400,000 ctxCache pricingBatchFlexPriority
3. How long will the AI answer be?
Your estimate will appear here.
Paste a prompt, choose an answer length, and calculate.
Active model pricing
| Model | Input / 1M | Output / 1M | Cached / 1M | Notes |
|---|---|---|---|---|
| GPT-5.5 | $5 | $30 | $0.5 | Premium reasoning model placeholder for the MVP seed. |
| GPT-5.4 | $2.5 | $15 | $0.25 | Flagship short/long context pricing seed. |
| GPT-5.4 Mini | $0.75 | $4.5 | $0.075 | Lower-cost OpenAI model seed. |
| GPT-5.4 Nano | $0.2 | $1.25 | $0.02 | Lowest-cost OpenAI text seed. |
How do I estimate OpenAI API cost?
Choose a OpenAI model, paste prompt text, optionally paste output text, and use advanced controls for cache, tier, region, and tools.
Does OpenAI pricing include more than tokens?
Includes text models with cached input support on selected tiers.