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DeepSeek-V4-Flash vs Gemini 2.5 Flash-Lite

1 vs 0 benchmarks won

DeepSeek
DeepSeek-V4-Flash
Google
Gemini 2.5 Flash-Lite
Overview
CompanyDeepSeekGoogle
Release dateApr 24 2026Jun 17 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
88.1%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGemini 2.5 Flash-Lite shipped 311 days before DeepSeek-V4-Flash

Which is better: DeepSeek-V4-Flash or Gemini 2.5 Flash-Lite?

DeepSeek-V4-Flash leads Gemini 2.5 Flash-Lite on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Flash-Lite shipped 311 days before DeepSeek-V4-Flash, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4-Flash is an open-source / open-weight model; Gemini 2.5 Flash-Lite 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 DeepSeek-V4-Flash released?
DeepSeek-V4-Flash was released by DeepSeek on Apr 24 2026.
When was Gemini 2.5 Flash-Lite released?
Gemini 2.5 Flash-Lite was released by Google on Jun 17 2025.
Is DeepSeek-V4-Flash or Gemini 2.5 Flash-Lite open source?
DeepSeek-V4-Flash is an open-source / open-weight model released by DeepSeek. Gemini 2.5 Flash-Lite is a proprietary model released by Google.

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