OpenAI o3-pro
OpenAI's higher-compute o3 reasoning tier with web, file, visual and Python tool access in ChatGPT and the Responses API.
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Why this model scores 85.8
Higher inference compute and broad tools raise reliable expert-task capability and autonomy above o3. Paid hosted access limits diffusion, but consequential capability remains broadly reachable.
News tied to OpenAI o3-pro
The model score of 85.8 rates this model's risk profile. The overall Doom Index of 66.8 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.
Basis reports accounting agents cut work time by 30 percent
Basis reported that accounting firms using its OpenAI-powered agents saved about 30 percent of time on covered workflows while humans retained review responsibility.
- Full item contribution
- +0.09
- OpenAI o3-pro equal share
- +0.02
OpenAI releases o3-pro across ChatGPT and its API
OpenAI released o3-pro to ChatGPT Pro and Team users and the Responses API, using more inference compute and tools for more reliable expert reasoning.
- Full item contribution
- +0.15
- OpenAI o3-pro equal share
- +0.15
Model score history
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R5
Doom Score 85.8
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 85.8
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R3
Doom Score 85.2
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R2
Doom Score 83.8
Full-corpus evidence recalculated after run intensive-backfill-20260812-080357-august-2025-pass1 under bounded-corpus-v2.
12 Aug 2026 -
R1
Doom Score 84.4
Initial exact profile for the immutable June 10 o3-pro snapshot.
12 Aug 2026