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Claude 1 vs DeepSeek R1-0528

Anthropic Claude 1 vs DeepSeek DeepSeek R1-0528 — side-by-side specs.

Anthropic
Claude 1
DeepSeek
DeepSeek R1-0528
Overview
CompanyAnthropicDeepSeek
Release dateMar 14 2023May 28 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 1 shipped 806 days before DeepSeek R1-0528

Which is better: Claude 1 or DeepSeek R1-0528?

Claude 1 and DeepSeek R1-0528 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 1 shipped 806 days before DeepSeek R1-0528, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is an open-source / open-weight model; Claude 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 1 released?
Claude 1 was released by Anthropic on Mar 14 2023.
When was DeepSeek R1-0528 released?
DeepSeek R1-0528 was released by DeepSeek on May 28 2025.
Is Claude 1 or DeepSeek R1-0528 open source?
DeepSeek R1-0528 is an open-source / open-weight model released by DeepSeek. Claude 1 is a proprietary model released by Anthropic.

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