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DeepSeek Chat (R1-based) vs Muse Spark

DeepSeek DeepSeek Chat (R1-based) vs Meta Muse Spark — side-by-side specs.

DeepSeek
DeepSeek Chat (R1-based)
Meta
Muse Spark
Overview
CompanyDeepSeekMeta
Release dateJan 20 2025Apr 8 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
77.4%
Science
GPQA Diamond
89.5%
Multimodal
MMMU
80.4%
Timeline
Release gapDeepSeek Chat (R1-based) shipped 443 days before Muse Spark

Which is better: DeepSeek Chat (R1-based) or Muse Spark?

DeepSeek Chat (R1-based) and Muse Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek Chat (R1-based) shipped 443 days before Muse Spark, so benchmark comparisons should account for the intervening progress.

DeepSeek Chat (R1-based) is an open-source / open-weight model; Muse Spark is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek Chat (R1-based) and Muse Spark don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek Chat (R1-based) released?
DeepSeek Chat (R1-based) was released by DeepSeek on Jan 20 2025.
When was Muse Spark released?
Muse Spark was released by Meta on Apr 8 2026.
Is DeepSeek Chat (R1-based) or Muse Spark open source?
DeepSeek Chat (R1-based) is an open-source / open-weight model released by DeepSeek. Muse Spark is a proprietary model released by Meta.

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