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

Gemini 1.5 Pro vs Kimi K2 (0905)

Google
Gemini 1.5 Pro
Moonshot AI
Kimi K2 (0905)
Overview
CompanyGoogleMoonshot AI
Release dateFeb 15 2024Sep 5 2025
AccessProprietaryOpen Weight
Specifications
Parameters
1T
Context window
256k
Benchmarks
Coding
SWE-Bench Verified
65.8%
Science
GPQA Diamond
75.1%
Timeline
Release gapGemini 1.5 Pro shipped 568 days before Kimi K2 (0905)

Which is better: Gemini 1.5 Pro or Kimi K2 (0905)?

Gemini 1.5 Pro and Kimi K2 (0905) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.5 Pro shipped 568 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.

Gemini 1.5 Pro is proprietary, while Kimi K2 (0905) is open weight.

Direct benchmark comparisons are unavailable — Gemini 1.5 Pro and Kimi K2 (0905) don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemini 1.5 Pro was released by Google on Feb 15 2024.

Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.

Gemini 1.5 Pro is a proprietary model released by Google. Kimi K2 (0905) is an open weight model released by Moonshot AI.

Other comparisons