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

Home/Compare/Codestral 22B vs Kimi K2

Codestral 22B vs Kimi K2

0 vs 2 benchmarks won

Mistral
Codestral 22B
Moonshot AI
Kimi K2
Overview
CompanyMistralMoonshot AI
Release dateMay 29 2024Jul 11 2025
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
128k
Benchmarks
Science reasoning
GPQA Diamond
75.1%
Software engineering
SWE-Bench Verified
65.8%
Multimodal understanding
MMMU
Timeline
Release gapCodestral 22B shipped 408 days before Kimi K2

Which is better: Codestral 22B or Kimi K2?

Kimi K2 leads Codestral 22B on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Codestral 22B shipped 408 days before Kimi K2, so benchmark comparisons should account for the intervening progress.

Kimi K2 is an open-source / open-weight model; Codestral 22B 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 Codestral 22B released?
Codestral 22B was released by Mistral on May 29 2024.
When was Kimi K2 released?
Kimi K2 was released by Moonshot AI on Jul 11 2025.
Is Codestral 22B or Kimi K2 open source?
Kimi K2 is an open-source / open-weight model released by Moonshot AI. Codestral 22B is a proprietary model released by Mistral.

Other comparisons