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

Muse Spark vs Kimi K2.7 Code

Meta
Muse Spark
Moonshot AI
Kimi K2.7 Code
Overview
CompanyMetaMoonshot AI
Release dateApr 8 2026Jun 12 2026
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Coding
SWE-Bench Verified
77.4%
Science
GPQA Diamond
89.5%
Multimodal
MMMU
80.4%
Timeline
Release gapMuse Spark shipped 65 days before Kimi K2.7 Code

Which is better: Muse Spark or Kimi K2.7 Code?

Muse Spark and Kimi K2.7 Code don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Muse Spark shipped 65 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; Muse Spark is proprietary.

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

Frequently asked questions

When was Muse Spark released?
Muse Spark was released by Meta on Apr 8 2026.
When was Kimi K2.7 Code released?
Kimi K2.7 Code was released by Moonshot AI on Jun 12 2026.
Is Muse Spark or Kimi K2.7 Code open source?
Kimi K2.7 Code is an open-source / open-weight model released by Moonshot AI. Muse Spark is a proprietary model released by Meta.

Other comparisons