OpenAI: o3 Mini

OpenAI: o3 Mini

openai · Released Jan 31, 2025 Specialist
Intelligence #118 / 523
53.1 Our Score
Speed #79 / 236
129.5 tokens / sec
Input #408 / 523
$1.10 per 1M tokens
Output #416 / 523
$4.40 per 1M tokens
Context #144 / 523
200,000 tokens

Analysis Summary

OpenAI: o3 Mini sits in the Specialist tier on our leaderboard, ranked #118 of 523 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's o3 Mini is a capable reasoning model with strong GPQA and MMLU scores and tool/function calling support, but its overall intelligence and coding indices place it in the mid-tier range. At $1.10/1M input tokens with a 200K context window, it offers reasonable value for businesses needing structured reasoning on a budget.

Assessed April 23, 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
17.8 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.

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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
2,909ms
Best Latency (TTFT)
127 tok/s
Best Throughput
1/1
Active Endpoints
Available via: OpenAI

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