Anthropic · Claude

Claude 2.1

READER SUMMARY

Hosted Claude release with 200K context, beta tool use, system prompts and lower measured hallucination rates.

DOOM SCORE52.0out of 100model risk profile, not the overall index

CURRENT ASSESSMENT · REVISION 1

Why this model scores 52.0

Long context and beta tools materially expanded useful task capability, while improved accuracy, hosted access and provider safeguards kept misuse and control difficulty moderate.

Capability58

Autonomy24

Deployment75

Misuse potential42

Control difficulty38

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MODEL-ATTRIBUTED EVIDENCE

News tied to Claude 2.1

The model score of 52.0 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+0.03

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.

21 Nov 2023CapabilityTOWARD

Anthropic releases Claude 2.1 with tools and 200K context

Anthropic released Claude 2.1 in its API and chat product with a 200K context window, beta tool use, system prompts and lower measured hallucination rates.

Full item contribution: +0.03
Claude 2.1 equal share: +0.03

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AUDIT TRAIL

Model score history

R1
Doom Score 52.0
New exact Claude 2.1 profile.
12 Aug 2026