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Claude 3.5 Haiku vs DeepSeek-V3.2

2 vs 0 benchmarks won

Anthropic
Claude 3.5 Haiku
DeepSeek
DeepSeek-V3.2
Overview
CompanyAnthropicDeepSeek
Release dateOct 22 2024Dec 1 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
41.6%
Software engineering
SWE-Bench Verified
40.6%
Multimodal understanding
MMMU
Timeline
Release gapClaude 3.5 Haiku shipped 405 days before DeepSeek-V3.2

Which is better: Claude 3.5 Haiku or DeepSeek-V3.2?

Claude 3.5 Haiku leads DeepSeek-V3.2 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.5 Haiku shipped 405 days before DeepSeek-V3.2, so benchmark comparisons should account for the intervening progress.

DeepSeek-V3.2 is an open-source / open-weight model; Claude 3.5 Haiku 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 3.5 Haiku released?
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
When was DeepSeek-V3.2 released?
DeepSeek-V3.2 was released by DeepSeek on Dec 1 2025.
Is Claude 3.5 Haiku or DeepSeek-V3.2 open source?
DeepSeek-V3.2 is an open-source / open-weight model released by DeepSeek. Claude 3.5 Haiku is a proprietary model released by Anthropic.

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