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Claude Opus 4.1 vs DeepSeek V3.2 Exp

2 vs 0 benchmarks won

Anthropic
Claude Opus 4.1
DeepSeek
DeepSeek V3.2 Exp
Overview
CompanyAnthropicDeepSeek
Release dateAug 5 2025Sep 29 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
80.9%
Software engineering
SWE-Bench Verified
74.5%
Multimodal understanding
MMMU
Timeline
Release gapClaude Opus 4.1 shipped 55 days before DeepSeek V3.2 Exp

Which is better: Claude Opus 4.1 or DeepSeek V3.2 Exp?

Claude Opus 4.1 leads DeepSeek V3.2 Exp on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Opus 4.1 shipped 55 days before DeepSeek V3.2 Exp, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.2 Exp is an open-source / open-weight model; Claude Opus 4.1 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 Opus 4.1 released?
Claude Opus 4.1 was released by Anthropic on Aug 5 2025.
When was DeepSeek V3.2 Exp released?
DeepSeek V3.2 Exp was released by DeepSeek on Sep 29 2025.
Is Claude Opus 4.1 or DeepSeek V3.2 Exp open source?
DeepSeek V3.2 Exp is an open-source / open-weight model released by DeepSeek. Claude Opus 4.1 is a proprietary model released by Anthropic.

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