Cost calculator o3-pro
What does o3-pro cost per month? Example: 2,000,000 input and 500,000 output tokens from €35.75 – all offers, EU and non-EU.
Without JavaScript you see the example calculation. With JavaScript the table uses your volumes.
| Provider | EU processing | Input, € per 1M tokens | Output, € per 1M tokens | Cost per month, € |
|---|---|---|---|---|
| OpenAI | – no | €8.94 | €35.75 | €35.75 |
| OpenAI | – no | €17.88 | €71.51 | €71.51 |
Source: providers' pricing pages, read and checked by searchit. As of 14 Oct 2026.
Cost = input tokens ÷ 1M × input price + output tokens ÷ 1M × output price. List prices without discounts, cache prices and taxes.
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