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...
This model is still tracked for research and discovery, but it is excluded from default public rankings until it returns to active status.
46.2
Quality Score
1340
Arena ELO
Undisclosed
Parameters
200K
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
14 of 22 public signals
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
3/5 signals
4/4 signals
4/5 signals
1/4 signals
2/4 signals
Gaps we are still tracking
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.
Introducing GPT-5.2
Introducing GPT-5.2 | 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 December 11, 2025 Product Release Introducing GPT‑5.2 The most advanced frontier model for professional work and long-running agents. Loading… Share Model performance Model per
View sourceo3-mini (high) Benchmark Update
Quality: 15.7/100 | Price: $1.925/M tokens | Output: 0 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 15.7/100 | Price: $1.925/M tokens | Output: 0 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 15.7/100 | Price: $1.925/M tokens | Output: 0 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 15.7/100 | Price: $1.925/M tokens | Output: 0 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View sourceo3-mini (high) Benchmark Update
Quality: 15.7/100 | Price: $1.925/M tokens | Output: 0 tok/s | MMLU: 0.802% | HumanEval: 0.734%
View source1340
ELO Score
1337 - 1345
95% Confidence
+/-4 points
19.4K
Battles
Aug 11, 2026
Last Updated