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Claude Sonnet 4.6 vs DeepSeek-V4-Pro

0 vs 1 benchmarks won

Anthropic
Claude Sonnet 4.6
DeepSeek
DeepSeek-V4-Pro
Overview
CompanyAnthropicDeepSeek
Release dateFeb 17 2026Apr 24 2026
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
79.6%
Multi-step tool use
MCP Atlas
69.5%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
33.2%
Abstract reasoning
ARC-AGI-2
58.3%
Science
GPQA Diamond
89.9%
90.1%Best
Agentic computer use
OSWorld-Verified
72.5%
Agentic financial analysis
Finance Agent v2
51%
Knowledge work
GDPval-AA
1676
Chart reasoning
CharXiv Reasoning
72.4%
Multimodal reasoning
MMMU-Pro
74.5%
Spatial reasoning
Blueprint-Bench 2
6.7%
Long context
MRCR v2 (8-needle) · 128k average
84.9%
Timeline
Release gapClaude Sonnet 4.6 shipped 66 days before DeepSeek-V4-Pro

Which is better: Claude Sonnet 4.6 or DeepSeek-V4-Pro?

DeepSeek-V4-Pro leads Claude Sonnet 4.6 on 1 of the 1 benchmark they both report (GPQA Diamond). Claude Sonnet 4.6 shipped 66 days before DeepSeek-V4-Pro, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4-Pro is an open-source / open-weight model; Claude Sonnet 4.6 is proprietary.

On GPQA Diamond, DeepSeek-V4-Pro leads at 90.1% vs Claude Sonnet 4.6 at 89.9%.

Frequently asked questions

When was Claude Sonnet 4.6 released?
Claude Sonnet 4.6 was released by Anthropic on Feb 17 2026.
When was DeepSeek-V4-Pro released?
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
Which scores higher on GPQA Diamond, Claude Sonnet 4.6 or DeepSeek-V4-Pro?
DeepSeek-V4-Pro leads on GPQA Diamond — Claude Sonnet 4.6 89.9% vs DeepSeek-V4-Pro 90.1%.
Is Claude Sonnet 4.6 or DeepSeek-V4-Pro open source?
DeepSeek-V4-Pro is an open-source / open-weight model released by DeepSeek. Claude Sonnet 4.6 is a proprietary model released by Anthropic.

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