OPT-175B
READER SUMMARYMeta's 175-billion-parameter Open Pre-trained Transformer released under controlled noncommercial research access.
Why this model scores 36.3
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.
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News tied to OPT-175B
The model score of 36.3 rates this model's risk profile. The overall Doom Index of 60.4 measures the recalibrated complete evidence corpus. These values answer different questions.
Each article's leave-one-out 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 are recalculated from their technical profile and related news, 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
- +0.03
- OPT-175B equal share
- +0.01
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
- +0.03
- OPT-175B equal share
- +0.03
Model score history
- R2Doom Score 36.3
Full-corpus evidence recalculated after run intensive-backfill-20260812-004103-august-2022-incremental under bounded-corpus-v2.
12 Aug 2026 - R1Doom Score 33.6
New exact Meta research model with original timestamp and five evidence-based dimension inputs.
12 Aug 2026