OpenAI
OpenAI o3-mini-high is the same model as o3-mini with reasoning effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and...
59.9
Quality Score
1340
Arena ELO
Undisclosed
Parameters
200K
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Feb 2025
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
o3-mini (high) Benchmark Update
Quality: 18.4/100 | Price: $1.925/M tokens | Output: 230.318 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 18.4/100 | Price: $1.925/M tokens | Output: 235.326 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceIntroducing GPT‑5 for developers
Introducing GPT‑5 for developers | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI August 7, 2025 Product Introducing GPT‑5 for developers The best model for coding and agentic tasks. Loading… Share Introduction Introduction Coding Frontend engin
View sourceIntroducing LifeSciBench, a benchmark for measuring and improving how well AI supports real-world life science research. Developed with 173 scientists from biotechnology and pharmaceutical research, L
Introducing LifeSciBench, a benchmark for measuring and improving how well AI supports real-world life science research. Developed with 173 scientists from biotechnology and pharmaceutical research, LifeSciBench includes 750 expert-authored tasks across seven biological research https://t.co/JDkKWcnL9F
View sourceo3-mini (high) Benchmark Update
Quality: 18.4/100 | Price: $1.925/M tokens | Output: 191.001 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 18.4/100 | Price: $1.925/M tokens | Output: 211.934 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View source1340
ELO Score
1337 - 1345
95% Confidence
+/-4 points
19.4K
Battles
Jun 23, 2026
Last Updated