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DeepSeek-V4-Pro vs Gemini 3.1 Flash-Lite

DeepSeek DeepSeek-V4-Pro vs Google Gemini 3.1 Flash-Lite — side-by-side specs.

DeepSeek
DeepSeek-V4-Pro
Google
Gemini 3.1 Flash-Lite
Overview
CompanyDeepSeekGoogle
Release dateApr 24 2026Mar 3 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science
GPQA Diamond
90.1%
Timeline
Release gapGemini 3.1 Flash-Lite shipped 52 days before DeepSeek-V4-Pro

Which is better: DeepSeek-V4-Pro or Gemini 3.1 Flash-Lite?

DeepSeek-V4-Pro and Gemini 3.1 Flash-Lite don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 3.1 Flash-Lite shipped 52 days before DeepSeek-V4-Pro, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4-Pro is an open-source / open-weight model; Gemini 3.1 Flash-Lite is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-V4-Pro and Gemini 3.1 Flash-Lite don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek-V4-Pro released?
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
When was Gemini 3.1 Flash-Lite released?
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.
Is DeepSeek-V4-Pro or Gemini 3.1 Flash-Lite open source?
DeepSeek-V4-Pro is an open-source / open-weight model released by DeepSeek. Gemini 3.1 Flash-Lite is a proprietary model released by Google.

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