OpenAI: o3 Mini

OpenAI: o3 Mini

openai · Released Jan 31, 2025 Specialist
Intelligence #131 / 556
53.1 Our Score
Speed #51 / 257
155.5 tokens / sec
Input #436 / 557
$1.10 per 1M tokens
Output #443 / 557
$4.40 per 1M tokens
Context #183 / 557
200,000 tokens

Analysis Summary

OpenAI: o3 Mini sits in the Specialist tier on our leaderboard, ranked #131 of 556 published models on overall intelligence. At $1.10 input and $4.40 output per 1M tokens, it is among the most expensive on the market. It offers a generous context window for extended reasoning and code review and supports tool use, function calling, and reasoning.

Editorial notes

OpenAI o3 Mini offers strong reasoning benchmarks, tool use, function calling, and a 200K context from a trusted provider, though its coding and agentic indices trail the current frontier.

Assessed May 14, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence5Technical3.4Value7Content5.5
Intelligence 5/10
Technical 3.4/10
Content 5.5/10
Value 7/10

OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the reasoning_effort parameter, which can be set to..

Capabilities

Tool Use Function Calling

Performance Indices

Source: Artificial Analysis

25.9 Intelligence Index
17.9 Coding Index
17.7 Agentic Index

Benchmark Scores

Intelligence

GPQA Diamond 74.8% Graduate-level scientific reasoning
HLE 8.7% Humanity's Last Exam
MMLU Pro 79.1% Multi-task language understanding
MATH 500 97.3% Mathematical problem-solving
AIME 77% Competition mathematics
SciCode 39.9% Scientific computing

Technical

LiveCodeBench 71.7% Live coding evaluation
TerminalBench Hard 6.8% Agentic terminal tasks
τ²-Bench 28.7% Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

How does OpenAI: o3 Mini stack up?

Compare side-by-side with other specialist models.

Compare Models

Model Information

OpenRouter ID openai/o3-mini
Provideropenai
Model Familyo3
Release Date January 31, 2025
Context Length200,000 tokens
Max Completion100,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $1.10 $0.001100
Output $4.40 $0.004400

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
1,722ms
Best Latency (TTFT)
155 tok/s
Best Throughput
1/1
Active Endpoints
Available via: OpenAI

Leaderboard Categories