OpenAI
Fast, cost-efficient reasoning model in the o-series. Balances strong STEM performance with lower inference cost and adjustable reasoning effort.
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46.8
Quality Score
1363
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.
17 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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Apr 2025
Released
4/5 signals
4/4 signals
5/5 signals
1/4 signals
3/4 signals
Parameters
—
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Unknown confidence
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.
o4-mini-2025-04-16 - Arena-Hard-Auto
Arena-Hard-Auto official Gemini-2.5 judged score 74.6 with CI -1.8/1.6
View sourceo4-mini-20250416 - SWE-Bench Verified
SWE-Bench Verified resolved rate 45.0
View sourceo4-mini - SWE-Bench Verified
SWE-Bench Verified resolved rate 64.6
View sourceO4-Mini (Low) - LiveCodeBench
LiveCodeBench pass@1 77.4 across 1055 tasks
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 sourceO4-Mini (Low) - LiveCodeBench
LiveCodeBench pass@1 77.4 across 1055 tasks
View source1201
ELO Score
1194 - 1208
95% Confidence
+/-7 points
41.3K
Battles
Oct 3, 2026
Last Updated
1363
ELO Score
1359 - 1368
95% Confidence
+/-5 points
20.1K
Battles
Oct 3, 2026
Last Updated