OPT-175B
Meta's 175-billion-parameter Open Pre-trained Transformer released under controlled noncommercial research access.
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Why this model scores 27.4
OPT-175B provided strong frontier-scale language capability with little native agency. Controlled institutional access limited immediate deployment and misuse, while downloadable weights created more residual control difficulty than an API-only system.
News tied to OPT-175B
The model score of 27.4 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.
Meta deploys 175B BlenderBot 3 with web access and memory
Meta publicly deployed BlenderBot 3, a 175-billion-parameter conversational agent with internet retrieval, long-term memory, and learning from organic user interactions.
- Full item contribution
- +0.06
- OPT-175B equal share
- +0.03
Meta grants controlled research access to OPT-175B
Meta published the 175-billion-parameter Open Pre-trained Transformer and made its weights and training code available under controlled noncommercial access to qualified researchers.
- Full item contribution
- +0.05
- OPT-175B equal share
- +0.05
Model score history
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R4
Doom Score 27.4
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R3
Doom Score 31.3
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R2
Doom Score 36.3
Full-corpus evidence recalculated after run intensive-backfill-20260812-004103-august-2022-incremental under bounded-corpus-v2.
12 Aug 2026 -
R1
Doom Score 33.6
New exact Meta research model with original timestamp and five evidence-based dimension inputs.
12 Aug 2026