o3-pro API Pricing
OpenAI · released 2025-06-10
Also searched as: o3 pro pricing
o3-pro price
2.00¢ / 1K
8.00¢ / 1K
3.50¢ / 1K
Official list price from OpenAI, as recorded by models.dev
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | $0.0340 |
| RAG query | 4,000 in / 500 out | $0.1200 |
| Long document summary | 50,000 in / 1,000 out | $1.08 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.7600 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $1,020.00 |
Cost = (input tokens ÷ 1,000,000 × $20.00) + (output tokens ÷ 1,000,000 × $80.00).
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | 147.4 | epoch | 2025-06-10 |
| 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 o3-pro See o3-pro 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 o3-pro?
o3-pro is developed by OpenAI, released 2025-06-10.
How much does o3-pro cost per million tokens?
o3-pro costs $20.00 per 1M input tokens and $80.00 per 1M output tokens ($35.00 blended), per OpenAI's official list price as recorded by models.dev.
What is the o3-pro API price?
The o3-pro API price is $20.00 per 1M input tokens and $80.00 per 1M output tokens ($35.00 per 1M blended).
How much does o3-pro cost for a typical request?
A short chat reply (500 in / 300 out tokens) costs about $0.0340 on o3-pro, at $20.00/1M input and $80.00/1M output.
Is o3-pro free?
o3-pro's official API list price is $20.00 per 1M input tokens and $80.00 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check OpenAI's site for those.
How does o3-pro rank on benchmarks?
o3-pro scores 147.4 on the Epoch Capabilities Index (ECI), ranking #66 of 107 models we track with a published ECI score.
Is there a cheaper model with a similar ECI to o3-pro?
Yes — GPT-5.4 nano scores a similar ECI (146.4) at $0.4625/1M blended, versus $35.00/1M for o3-pro.
Where does this data come from?
Pricing for o3-pro 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.