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Claude 2.1 vs DeepSeek V3 Chat

Anthropic Claude 2.1 vs DeepSeek DeepSeek V3 Chat — side-by-side specs.

Anthropic
Claude 2.1
DeepSeek
DeepSeek V3 Chat
Overview
CompanyAnthropicDeepSeek
Release dateNov 21 2023Dec 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 2.1 shipped 376 days before DeepSeek V3 Chat

Which is better: Claude 2.1 or DeepSeek V3 Chat?

Claude 2.1 and DeepSeek V3 Chat do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 2.1 shipped 376 days before DeepSeek V3 Chat, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Chat is an open-source / open-weight model; Claude 2.1 is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Claude 2.1 released?
Claude 2.1 was released by Anthropic on Nov 21 2023.
When was DeepSeek V3 Chat released?
DeepSeek V3 Chat was released by DeepSeek on Dec 2024.
Is Claude 2.1 or DeepSeek V3 Chat open source?
DeepSeek V3 Chat is an open-source / open-weight model released by DeepSeek. Claude 2.1 is a proprietary model released by Anthropic.

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