o3 pricing
OpenAI's advanced reasoning model with chain-of-thought capabilities. Below you will find 4 current rows with input and output dollars per million. Right now the lowest input is $2.00 and the lowest output is $8.00.
Pricing across providers
Every row is a seller of o3 with token pricing we track. The cheapest input in this snapshot is from Openrouter. The bar chart shows the same input and output dollars per million for a quick scan.
| Provider | Input / 1M | Output / 1M | Cached input | Batch |
|---|---|---|---|---|
O Openrouter | $2.00 | $8.00 | — | — |
VA Vercel Ai Gateway | $2.00 | $8.00 | $0.500 | — |
A Azure | $2.00 | $8.00 | $0.500 | — |
O OpenAInative | $2.00 | $8.00 | $0.500 | — |
Input vs output · per provider
Pricing history
If you only care about current multi seller rates, use the pricing section. This timeline is for the official listing history. The native listing moved from $10.00 in and $40.00 out to $2.00 in and $8.00 out in the latest window.
Since Mar 13, 2026
$2.00 in · $8.00 out(current listing)
Output rate -80% vs previous period
Apr 16, 2025 → Mar 13, 2026
$10.00 in · $40.00 out
Cost calculator
Use this block to stress test o3 cost without a spreadsheet. All estimates come from public list rates in this page.
Provider
0.200000¢ / req
0.400000¢ / req
Model specifications
Quick spec sheet for o3 before you dive back into pricing. Family: o-series. Reported under OpenAI.
- Context window
- 200,000 tokens
- Max output
- 100,000 tokens
- Vision (images)
- Yes
- Tool / function calling
- Yes
- Streaming
- Yes
- Released
- Apr 2025
- Primary provider
- OpenAI
- Model family
- o-series
Compare o3
Open a pair page to see o3 next to another model with a shared provider matrix. 6 shortcuts below.
- o3 vs GPT-4o
o3 20% cheaper on output
- o3 vs GPT-4o mini
GPT-4o mini 92% cheaper on output
- o3 vs Claude Sonnet 4.6
o3 46% cheaper on output
- o3 vs Gemini 2.0 Flash
Gemini 2.0 Flash 95% cheaper on output
- o3 vs Llama 3.1 70B
Compare pricing side by side
- o3 vs Claude Haiku 4.5
Claude Haiku 4.5 37% cheaper on output
Frequently asked questions
Read these after the table if you want plain language around o3 rates. The short model note from our index: OpenAI's advanced reasoning model with chain-of-thought capabilities.
Also from OpenAI
Other models by OpenAI with live pricing in our catalog.