gpt-4o-mini pricing
gpt-4o-mini from OpenAI costs $0.150 per 1M input tokens and $0.600 per 1M output tokens. Cached input is $0.075 per 1M. Context window 128,000 tokens.
API id gpt-4o-mini · OpenAI · source · updated 2026-08-12
$0.150
Input / 1M tokens
$0.600
Output / 1M tokens
$0.075
Cached input / 1M
128K
Context window
What gpt-4o-mini costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0004 |
| Document summary | 50,000 | 2,000 | $0.0087 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $0.27 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does gpt-4o-mini cost per 1M tokens?
- gpt-4o-mini costs $0.150 per 1M input tokens and $0.600 per 1M output tokens on the standard tier. Cached input is $0.075 per 1M.
- What is gpt-4o-mini's context window?
- gpt-4o-mini accepts up to 128,000 tokens in a single request, and can return up to 16,384 output tokens.
- Is there a cheaper OpenAI model than gpt-4o-mini?
- Yes. omni-moderation-latest is free per 1M input tokens versus $0.150 for gpt-4o-mini.
- Where does this gpt-4o-mini price come from?
- Directly from OpenAI's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.