o3-pro
As of Oct 4, 2026, the cheapest o3-pro API price is $18 per 1M input tokens (Poe) and $40 per 1M output tokens (Abacus). o3-pro is offered by 9 providers in the o-pro family, reasoning enabled. OpenAI's own rate is $80 per 1M output tokens.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Abacus | $20 | Cheapest$40 | — | — | 200k |
| Poe | Cheapest$18 | $72 | — | — | 200k |
| Eden AI | $20 | $80 | — | — | 200k |
| Helicone | $20 | $80 | — | — | 200k |
| Kilo Gateway | $20 | $80 | — | — | 200k |
| OpenAI | $20 | $80 | — | — | 200k |
| OpenRouter | $20 | $80 | — | — | 200k |
| Vercel AI Gateway | $20 | $80 | — | — | 200k |
| NanoGPT | $22 | $88 | $11 | — | 200k |
o3-pro pricing FAQ
What is the cheapest o3-pro API?
As of Oct 4, 2026, Abacus has the lowest o3-pro output price at $40 per 1M tokens, and Poe has the lowest input price at $18 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How much does o3-pro cost on OpenAI?
OpenAI charges $20 per 1M input tokens and $80 per 1M output tokens for o3-pro.
How many providers offer o3-pro?
9 providers list o3-pro on Sovyron; 9 of them sell it at a metered per-token price.
Is o3-pro free?
No provider in the Sovyron catalog lists a free tier for o3-pro.
What is the context window of o3-pro?
o3-pro supports a 200k-token context window and up to 100k output tokens.
Token cost calculator
What a month costs at one provider's published rates. Enter the tokens you expect to send and receive; cached tokens use the cached-input price where the provider lists one, and count as ordinary input where it does not.
Estimated
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