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

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DeepSeek V3 Base vs Gemini 3.1 Pro

0 vs 2 benchmarks won

DeepSeek
DeepSeek V3 Base
Google
Gemini 3.1 Pro
Overview
CompanyDeepSeekGoogle
Release dateDec 2024Feb 19 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.3%
Software engineering
SWE-Bench Verified
80.6%
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek V3 Base shipped 445 days before Gemini 3.1 Pro

Which is better: DeepSeek V3 Base or Gemini 3.1 Pro?

Gemini 3.1 Pro leads DeepSeek V3 Base on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). DeepSeek V3 Base shipped 445 days before Gemini 3.1 Pro, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Base is an open-source / open-weight model; Gemini 3.1 Pro 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 V3 Base released?
DeepSeek V3 Base was released by DeepSeek on Dec 2024.
When was Gemini 3.1 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.
Is DeepSeek V3 Base or Gemini 3.1 Pro open source?
DeepSeek V3 Base is an open-source / open-weight model released by DeepSeek. Gemini 3.1 Pro is a proprietary model released by Google.

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