OpenAI › o3 Pro › Pricing

o3 Pro pricing

API list price by OpenAI · checked Oct 26, 2026
Benchmarks and alternatives →
$20 / $80per 1M tokens in / out
#526on OpenRouter by tokens · 6M / week

Price sheetper 1M tokens

Input$20list
Output$80
Context · max output200K · 100Ktokens

Where to buy1 provider · per 1M tokens

ProviderInputOutputContext
OpenAIlab$20$80200K

In OpenAI's line-upper 1M in / out

Chat Latest$5 / $30−68%
GPT-6 Astra$10 / $50−43%
GPT-5.6 Cyber$12.50 / $75−20%
o3 Pro$20 / $80this model
GPT-5.2 Pro$21 / $168+65%
GPT-5.5 Pro$30 / $180+93%
GPT-5.4 Pro (2026-03-05)$30 / $180+93%
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Cheaper for the same workvs o3 Pro

Claude Opus 5.5 max-77%score ×2.6$5.98
Claude Sonnet 5.5 max-89%score ×2.6$5.46
Claude Fable 5.1 max-43%score ×2.4$7.63
GPT-6 Astra max-43%score ×2.4$3.26
Gemini 4 Argon high-89%score ×2.4$1.62

Pricing questions

How much does o3 Pro cost?›

$20 per 1M input tokens and $80 per 1M output tokens.

Is o3 Pro free to use?›

There is no free API tier.

What is a cheaper alternative to o3 Pro?›

Claude Opus 5.5 at max effort costs -77% per task with a score ×2.6 on AA Intelligence Index 4.3.2.