openai Vision Reasoning

o3 Pro pricing & benchmarks

Released Jun 10, 2025 · served by 1 provider

Input / 1M tokens$20.00
Output / 1M tokens$80.00
Context window200K
Cached input
1M in + 300K out$44.00

What o3 Pro is

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...

Providers and prices for o3 Pro

The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.

ProviderInputOutputContext QuantUptime 24hThroughput
OpenAIcheapest $20.00 $80.00 200K 100.0%

FAQ

How much does the o3 Pro API cost?

$20.00 per 1M input tokens and $80.00 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $44.00.

Is o3 Pro free?

No. It is a paid model starting at $20.00 per 1M input tokens, though some providers offer trial credits.

Which provider is cheapest for o3 Pro?

OpenAI at $20.00 input / $80.00 output per 1M tokens.

Can I self-host o3 Pro?

No. o3 Pro is closed-weight and only available through hosted APIs.