o4-mini API Pricing
OpenAI · released 2025-04-16
Also searched as: o4 mini pricing
o4-mini price
0.110¢ / 1K
0.440¢ / 1K
0.193¢ / 1K
Deprecated by the vendor
Official list price from OpenAI, as recorded by models.dev
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | 0.187¢ |
| RAG query | 4,000 in / 500 out | 0.66¢ |
| Long document summary | 50,000 in / 1,000 out | $0.0594 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.0418 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $56.10 |
Cost = (input tokens ÷ 1,000,000 × $1.10) + (output tokens ÷ 1,000,000 × $4.40).
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | 145.2 | epoch | 2025-04-16 |
| Epoch Mock AIME accuracy | No public data yet | ||
| Epoch FrontierMath (T1–3) accuracy | No public data yet | ||
| Arena text rating | No public data yet | ||
| Arena coding rating (human preference votes, not task accuracy) | No public data yet | ||
| Arena math rating | No public data yet | ||
| Arena WebDev rating | No public data yet | ||
Similar ECI, lower price
| Model | ECI | Blended $/1M |
|---|---|---|
| GPT-5.4 nano | 146.4 | $0.4625 |
| DeepSeek V4 Flash | 146.9 | $0.525 |
| MiniMax-M3 | 147.6 | $0.525 |
| Gemini 3.1 Flash Lite | 144.9 | $0.5625 |
| GPT-5 Mini | 146.1 | $0.6875 |
More from OpenAI
| Model | Released | Blended $/1M |
|---|---|---|
| GPT-6.1 Terra | 2026-10-26 | $2.00 |
| GPT-6.1 Sol | 2026-09-29 | $4.00 |
| GPT-6 Sol | 2026-09-22 | $4.00 |
| GPT-6 Luna | 2026-09-22 | $0.20 |
| GPT-Live 1 | 2026-09-10 | — |
| GPT Image 2.5 Sunburst | 2026-09-08 | $11.25 |
| GPT Image 2.5 Flare | 2026-09-08 | $11.25 |
| GPT-6 Astra (Fast) | 2026-09-04 | — |
Count tokens & estimate cost for o4-mini See o4-mini on the leaderboard
Prices: OpenAI's official list price as recorded by models.dev; benchmarks: see sources below; last synced 2026-11-06.
FAQ
Who develops o4-mini?
o4-mini is developed by OpenAI, released 2025-04-16.
How much does o4-mini cost per million tokens?
o4-mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens ($1.925 blended), per OpenAI's official list price as recorded by models.dev.
What is the o4-mini API price?
The o4-mini API price is $1.10 per 1M input tokens and $4.40 per 1M output tokens ($1.925 per 1M blended).
How much does o4-mini cost for a typical request?
A short chat reply (500 in / 300 out tokens) costs about 0.187¢ on o4-mini, at $1.10/1M input and $4.40/1M output.
Is o4-mini free?
o4-mini's official API list price is $1.10 per 1M input tokens and $4.40 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check OpenAI's site for those.
How does o4-mini rank on benchmarks?
o4-mini scores 145.2 on the Epoch Capabilities Index (ECI), ranking #76 of 107 models we track with a published ECI score.
Is there a cheaper model with a similar ECI to o4-mini?
Yes — GPT-5.4 nano scores a similar ECI (146.4) at $0.4625/1M blended, versus $1.925/1M for o4-mini.
Where does this data come from?
Pricing for o4-mini comes from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 licenses) — see /data-sources/. Last synced 2026-11-06.