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DeepSeek R1-0528 vs Gemini 3.0 Flash

DeepSeek DeepSeek R1-0528 vs Google Gemini 3.0 Flash — side-by-side specs.

DeepSeek
DeepSeek R1-0528
Google
Gemini 3.0 Flash
Overview
CompanyDeepSeekGoogle
Release dateMay 28 2025Dec 17 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
49.6%
Coding
SWE-Bench Verified
78%
Agentic terminal coding
Terminal-Bench 2.1
58%
Multi-step tool use
MCP Atlas
62%
General tool use
Toolathlon
49.4%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
33.7%
Abstract reasoning
ARC-AGI-2
33.6%
Science
GPQA Diamond
90.4%
Agentic computer use
OSWorld-Verified
65.1%
Agentic financial analysis
Finance Agent v2
42.6%
Knowledge work
GDPval-AA
1204
Chart reasoning
CharXiv Reasoning
80.3%
Multimodal reasoning
MMMU-Pro
81.2%
Spatial reasoning
Blueprint-Bench 2
0%
Long context
MRCR v2 (8-needle) · 128k average
67.2%
Long context
MRCR v2 (8-needle) · 1M pointwise
22.1%
Timeline
Release gapDeepSeek R1-0528 shipped 203 days before Gemini 3.0 Flash

Which is better: DeepSeek R1-0528 or Gemini 3.0 Flash?

DeepSeek R1-0528 and Gemini 3.0 Flash don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek R1-0528 shipped 203 days before Gemini 3.0 Flash, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is an open-source / open-weight model; Gemini 3.0 Flash is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek R1-0528 and Gemini 3.0 Flash don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek R1-0528 released?
DeepSeek R1-0528 was released by DeepSeek on May 28 2025.
When was Gemini 3.0 Flash released?
Gemini 3.0 Flash was released by Google on Dec 17 2025.
Is DeepSeek R1-0528 or Gemini 3.0 Flash open source?
DeepSeek R1-0528 is an open-source / open-weight model released by DeepSeek. Gemini 3.0 Flash is a proprietary model released by Google.

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