o3-mini pricing
o3-mini from OpenAI costs $1.10 per 1M input tokens and $4.40 per 1M output tokens. Cached input is $0.550 per 1M. Context window 200,000 tokens.
API id o3-mini · OpenAI · source · updated 2026-08-11
$1.10
Input / 1M tokens
$4.40
Output / 1M tokens
$0.550
Cached input / 1M
200K
Context window
What o3-mini costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0033 |
| Document summary | 50,000 | 2,000 | $0.06 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $1.98 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does o3-mini cost per 1M tokens?
- o3-mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens on the standard tier. Cached input is $0.550 per 1M.
- What is o3-mini's context window?
- o3-mini accepts up to 200,000 tokens in a single request, and can return up to 100,000 output tokens.
- Is there a cheaper OpenAI model than o3-mini?
- Yes. gpt-4o-mini-2024-07-18 is $0.300 per 1M input tokens versus $1.10 for o3-mini, with a 128,000 token context window.
- Where does this o3-mini price come from?
- Directly from OpenAI's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.
Other OpenAI models
- gpt-5.6-sol $5.00
- gpt-5.6-terra $2.00
- gpt-5.6-luna $0.200
- gpt-5.5 (<272K context length) $5.00
- gpt-5.5-pro (<272K context length) $30.00
- gpt-5.4 (<272K context length) $2.50
- gpt-5.4-mini $0.750
- gpt-5.4-nano $0.200
- gpt-5.4-pro (<272K context length) $30.00
- gpt-5.2 $1.75
- gpt-5.2-pro $21.00
- gpt-5.1 $1.25
- gpt-5 $1.25
- gpt-5-mini $0.250
- gpt-5-nano $0.050
- gpt-5-pro $15.00