Llama 2 70B Base
Largest open-weight pretrained Llama 2 model, released for research and commercial use.
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Why this model scores 51.4
The strongest base tier increased transferable capability and misuse potential. Hardware demands reduced deployment somewhat, but open weights raised control difficulty.
News tied to Llama 2 70B Base
The model score of 51.4 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.
Meta releases Llama 2 weights for commercial use
Meta released pretrained and chat-tuned Llama 2 models in 7B, 13B and 70B sizes for research and commercial use, with distribution through Azure, AWS and Hugging Face.
- Full item contribution
- +0.13
- Llama 2 70B Base equal share
- +0.02
Model score history
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R3
Doom Score 51.4
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R2
Doom Score 51.7
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R1
Doom Score 52.4
New exact Llama 2 70B base profile.
12 Aug 2026