OpenAI

o3 Pro — Benchmark Scores, Pricing & Performance Analysis

FLAGSHIPOpenAI
Chatbot Arena ELO
1410
Output Speed
25 tok/s
Input Cost
$20.0/1M
Output Cost
$80.0/1M
Context Window
200K
Max Output
100K
Knowledge Cutoff
Jun 2024
Accepts
text, file, image

o3 Pro by OpenAI demonstrates top-tier general intelligence, excellent coding ability, outstanding mathematical reasoning. View detailed benchmark data including scores across coding, math, reasoning, speed, and cost metrics.

Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.

General Benchmarks

MMLU-Pro
86.0%7th of 66

Massive Multitask Language Understanding professional benchmark

HuggingFace Leaderboard
Chatbot Arena ELO
141015th of 74

Human preference ELO from blind head-to-head votes

LMSYS / HuggingFace

Coding Benchmarks

LiveCodeBench
75.0%6th of 66

Live competitive programming benchmark

livecodebench.github.io
HumanEval+
92.0%6th of 66

Code generation correctness with extended tests

Papers
SWE-bench Verified
70.0%17th of 67

Real-world software engineering task resolution

swebench.com

Math Benchmarks

GSM8K
99.0%1st of 66

Grade school math word problems

Papers
MATH
97.0%2nd of 66

Competition mathematics problem solving

Papers
AIME 2025
98.4%3rd of 17

American Invitational Mathematics Examination — competition math

Papers

Reasoning Benchmarks

ARC-AGI
70.0%3rd of 66

Abstraction and Reasoning Corpus for general intelligence

arcprize.org
GPQA Diamond
85.0%35th of 140

Graduate-level science Q&A by domain experts

Papers

Speed Benchmarks

Time to First Token
1200 ms82nd of 92

Latency before first token arrives

Aggregated
Output Speed
25 tok/s91st of 94

Tokens generated per second

Aggregated

Cost Benchmarks

Input Cost
$20.0407th of 413

Cost per 1M input tokens

OpenRouter API
Output Cost
$80.0406th of 413

Cost per 1M output tokens

OpenRouter API

Context Benchmarks

Context Length
200K189th of 451

Maximum context window size

OpenRouter API

Available from 7 providers

The same model costs different amounts depending on who serves it. You can bring your own key for 3 of these — connect it here.

ProviderInput / 1MOutput / 1MCached inContextYour key
Poe$18$72—200K—
Abacus$20$40—200K—
Eden AI$20$80—200K—
Kilo Gateway$20$80—200K—
OpenAI$20$80—200KSupported
OpenRouter$20$80—200KSupported
Vercel AI Gateway$20$80—200KSupported

o3 Pro — Benchmark Scores Overview

Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).

o3 Pro — Frequently Asked Questions

How intelligent is o3 Pro?

o3 Pro scores 1410 on the Chatbot Arena ELO rating, making it a high-performing AI model. This score is based on blind head-to-head human preference voting.

How much does o3 Pro cost?

o3 Pro costs $20.0 per 1M input tokens and $80.0 per 1M output tokens. This places it in the premium pricing tier.

How fast is o3 Pro?

o3 Pro generates output at 25 tokens per second, which is slower, prioritizing quality over speed compared to other models. The time to first token is 1200 ms.

How good is o3 Pro at coding?

o3 Pro achieves 70.0% on SWE-bench Verified, demonstrating excellent real-world software engineering capability. This benchmark tests the model's ability to resolve actual GitHub issues.

How good is o3 Pro at math and reasoning?

o3 Pro scores 97.0% on the MATH benchmark (competition-level mathematics). It also achieves 85.0% on GPQA Diamond, a graduate-level science reasoning benchmark.

What is the context window of o3 Pro?

o3 Pro has a context window of 200K tokens. This determines how much text, conversation history, and code the model can process in a single request.

Who created o3 Pro?

o3 Pro was created by OpenAI. It is classified as a flagship model in our catalogue.

Is o3 Pro open source?

No, o3 Pro is a proprietary model. It is available through OpenAI's API and compatible providers.