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

Gemini 3.1 Pro vs Kimi K2.7 Code

Google
Gemini 3.1 Pro
Moonshot AI
Kimi K2.7 Code
Overview
CompanyGoogleMoonshot AI
Release dateFeb 19 2026Jun 12 2026
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Agentic coding
SWE-Bench Pro
54.2%
Coding
SWE-Bench Verified
80.6%
Agentic terminal coding
Terminal-Bench 2.1
70.3%
Agentic terminal coding
Terminal-Bench 2.0
68.5%
Multi-step tool use
MCP Atlas
78.2%
General tool use
Toolathlon
48.8%
Web browsing
BrowseComp
85.9%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
44.4%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
51.4%
Abstract reasoning
ARC-AGI-2
77.1%
Advanced math
FrontierMath · Tier 1–3
36.9%
Advanced math
FrontierMath · Tier 4
16.7%
Science
GPQA Diamond
94.3%
Agentic computer use
OSWorld-Verified
76.2%
Agentic financial analysis
Finance Agent v2
43%
Knowledge work
GDPval-AA
1314
Knowledge work
GDPval (win/tie rate)
67.3%
Chart reasoning
CharXiv Reasoning
83.3%
Multimodal reasoning
MMMU-Pro
80.5%
Spatial reasoning
Blueprint-Bench 2
26.5%
Long context
MRCR v2 (8-needle) · 128k average
84.9%
Long context
MRCR v2 (8-needle) · 1M pointwise
26.3%
Timeline
Release gapGemini 3.1 Pro shipped 113 days before Kimi K2.7 Code

Which is better: Gemini 3.1 Pro or Kimi K2.7 Code?

Gemini 3.1 Pro and Kimi K2.7 Code don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 3.1 Pro shipped 113 days before Kimi K2.7 Code, so benchmark comparisons should account for the intervening progress.

Kimi K2.7 Code is an open-source / open-weight model; Gemini 3.1 Pro is proprietary.

Direct benchmark comparisons are unavailable — Gemini 3.1 Pro and Kimi K2.7 Code don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Gemini 3.1 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.
When was Kimi K2.7 Code released?
Kimi K2.7 Code was released by Moonshot AI on Jun 12 2026.
Is Gemini 3.1 Pro or Kimi K2.7 Code open source?
Kimi K2.7 Code is an open-source / open-weight model released by Moonshot AI. Gemini 3.1 Pro is a proprietary model released by Google.

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