Meta · Llama 2

Llama 2 13B Chat

READER SUMMARY

Open-weight 13B conversational Llama 2 model fine-tuned for dialogue and assistant use.

DOOM SCORE50.6out of 100model risk profile, not the overall index

CURRENT ASSESSMENT · REVISION 1

Why this model scores 50.6

Better instruction performance raised practical agent utility, while downloadable commercial weights kept diffusion and downstream control difficulty high.

Capability48

Autonomy12

Deployment95

Misuse potential46

Control difficulty58

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MODEL-ATTRIBUTED EVIDENCE

News tied to Llama 2 13B Chat

The model score of 50.6 rates this model's risk profile. The overall Doom Index of 61.5 measures the recalibrated complete evidence corpus. These values answer different questions.

NET MODEL-ATTRIBUTED INDEX CONTRIBUTION+0.01

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.

18 Jul 2023RaceTOWARD

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: +0.04
Llama 2 13B Chat equal share: +0.01

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AUDIT TRAIL

Model score history

R1
Doom Score 50.6
New exact Llama 2 13B chat profile.
12 Aug 2026