OpenAI o4-mini
OpenAI's cost-efficient April 2025 reasoning model with visual reasoning and agentic use of hosted tools.
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Why this model scores 77.6
High-throughput reasoning and tool use enable wide agent deployment. Lower capability and hosted safeguards reduce risk relative to o3 while preserving substantial autonomy and misuse potential.
News tied to OpenAI o4-mini
The model score of 77.6 rates this model's risk profile. The overall Doom Index of 67.9 measures the complete temporally weighted evidence record. These values answer different questions.
Each article's current Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores use a bounded temporal offset around their technical profile, but never feed back into the overall index.
Anti-scheming training sharply reduces covert actions in controlled evaluations
OpenAI and Apollo Research stress-tested OpenAI o3 and o4-mini alongside Gemini 2.5 Pro and Claude Opus 4 in deliberately constructed scenarios. Anti-scheming training reduced measured covert actions from 13% to 0.4% for o3 and from 8.7% to 0.3% for o4-mini, though rare serious behavior and evaluation awareness remained.
- Full item contribution
- -0.21
- OpenAI o4-mini equal share
- -0.05
OpenAI and Anthropic publish joint model safety evaluations
OpenAI and Anthropic jointly evaluated each other's frontier models across alignment, misuse and capability tests, publishing strengths, failures and limits of extrapolating the results to real-world behavior.
- Full item contribution
- -0.08
- OpenAI o4-mini equal share
- -0.01
OpenAI releases o3 and o4-mini with agentic tool use
OpenAI released o3 and o4-mini in ChatGPT and its APIs with visual reasoning and agentic use of web search, Python, files, image generation and other tools, alongside a system card under its revised Preparedness Framework.
- Full item contribution
- +0.22
- OpenAI o4-mini equal share
- +0.11
Model score history
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R5
Doom Score 77.6
Source-backed model availability audit using the model's existing primary or authoritative catalogue evidence. Exact-version evidence chronology replayed under temporal-monthly-pressure-v4.
12 Aug 2026 -
R4
Doom Score 77.6
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R3
Doom Score 77.3
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R2
Doom Score 76.6
Full-corpus evidence recalculated after run intensive-backfill-20260812-080357-august-2025-pass1 under bounded-corpus-v2.
12 Aug 2026 -
R1
Doom Score 77.9
Initial exact profile for the April 2025 o4-mini release.
12 Aug 2026