Muse Spark 1.2vsQwen3.5

Muse Spark 1.2
Qwen3.5
Specifications
Parameters
397B
Context window
1M
1M
Benchmarks
Coding
SWE-Bench Verified
76.4%
Multilingual coding
SWE-Bench Multilingual
69.3%
Agentic coding
DeepSWE 1.1
59.3%
Agentic terminal coding
Terminal-Bench 2.1
82.9%
Agentic terminal coding
Terminal-Bench 2.0
52.5%
Web browsing
BrowseComp
69%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
28.7%
Science
GPQA Diamond
88.4%
Agentic computer use
OSWorld-Verified
62.2%
Chart reasoning
CharXiv Reasoning
80.8%
Multimodal reasoning
MMMU-Pro
79%
Multimodal
MMMU
85%
Overview
CompanyMetaQwen
Release dateAug 5 2026Feb 16 2026
AccessProprietaryOpen Weight

Which is better: Muse Spark 1.2 or Qwen3.5?

Muse Spark 1.2 and Qwen3.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Qwen3.5 shipped 170 days before Muse Spark 1.2, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Muse Spark 1.2) vs 1M (Qwen3.5). Muse Spark 1.2 is proprietary, while Qwen3.5 is open weight.

Direct benchmark comparisons are unavailable — Muse Spark 1.2 and Qwen3.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Muse Spark 1.2 was released by Meta on Aug 5 2026.

Qwen3.5 was released by Qwen on Feb 16 2026.

Muse Spark 1.2 has a 1M context window; Qwen3.5 has 1M.

Muse Spark 1.2 is a proprietary model released by Meta. Qwen3.5 is an open weight model released by Qwen.

Other comparisons