o3 API price
openai/o3
The cheapest o3 API is $2.00/M input at Official - OpenAI - all 2 providers compared below, per 1M tokens.
MidOpenAI200K context2 sellers
Input
$2.00
per 1M tokens · Official - OpenAI
Output
$8.00
per 1M tokens · Official - OpenAI
Where to buy it
Cheapest o3 API providers compared - 2 sellers, from $2.00/M.
| Provider | Input $/M | Output $/M | Cached in |
|---|---|---|---|
| Official - OpenAI | 2.00cheapest | 8.00 | 0.500 |
| Batch | 1.00 | 4.00 | - |
| Flex | 1.00 | 4.00 | 0.250 |
| Priority | 3.50 | 14.00 | 0.875 |
| OpenRouter (aggregator) | 2.00 | 8.00 | 0.500 |
Against its tier
- This model$10.00
- Cheapest · Nemotron 3 Super 120B A12B$0.485
- Tier median · Grok 4.3 Latest$3.75
- Dearest · GPT 5.5 Cyber$87.50
#26 of 33 mid · cheaper than 22%
Details
- Context window
- 200K200,000 tokens
- Developer
- OpenAI
- Intelligence
- 31.1
- Sellers
- 2
- Cached input
- $0.50where the source publishes one
- Cheapest at
- Official - OpenAI
- Combined
- $10.00in + out per 1M
- Last checked
- 2026-08-28