o4-mini
OpenAI · Small
Cost-effective reasoning model with multimodal support. Replaced o3-mini at the same price point.
- Strengths
- Affordable reasoning with multimodal support.
- Best for
- Budget reasoning tasks and high-volume problem solving.
- Limitations
- Smaller reasoning model; less capable than the full o-series or GPT-5.5.
Input / 1M
$1.10
Output / 1M
$4.40
Cached input / 1M
$0.275
Context window
200K
Where it sits
4th-cheapest small model
by blended $/Mtok among 5 listed small models
175% above the small median
blended $/Mtok across 5 small models
Output costs 4× input
$1.10 in / $4.40 out per 1M
Cached input saves 75%
$0.275 vs $1.10 per 1M fresh
Held flat since launch (Apr 2025)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 16 Apr 2025 | $1.10 | $4.40 | $0.275 | openai.com/api/pricing |