AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Home/Compare/Claude Sonnet 4 vs DeepSeek-V3.2

Claude Sonnet 4 vs DeepSeek-V3.2

2 vs 0 benchmarks won

Anthropic
Claude Sonnet 4
DeepSeek
DeepSeek-V3.2
Overview
CompanyAnthropicDeepSeek
Release dateMay 22 2025Dec 1 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
75.4%
Software engineering
SWE-Bench Verified
72.7%
Multimodal understanding
MMMU
Timeline
Release gapClaude Sonnet 4 shipped 193 days before DeepSeek-V3.2

Which is better: Claude Sonnet 4 or DeepSeek-V3.2?

Claude Sonnet 4 leads DeepSeek-V3.2 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Sonnet 4 shipped 193 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 Sonnet 4 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 Sonnet 4 released?
Claude Sonnet 4 was released by Anthropic on May 22 2025.
When was DeepSeek-V3.2 released?
DeepSeek-V3.2 was released by DeepSeek on Dec 1 2025.
Is Claude Sonnet 4 or DeepSeek-V3.2 open source?
DeepSeek-V3.2 is an open-source / open-weight model released by DeepSeek. Claude Sonnet 4 is a proprietary model released by Anthropic.

Other comparisons