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

DeepSeek R1-0528 vs Muse Spark

DeepSeek
DeepSeek R1-0528
Meta
Muse Spark
Overview
CompanyDeepSeekMeta
Release dateMay 28 2025Apr 8 2026
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
8%
Agentic coding
SWE-Bench Pro
55%
Coding
SWE-Bench Verified
77.4%
Agentic coding
DeepSWE 1.1
10%
Agentic terminal coding
Terminal-Bench 2.1
67.3%
Multi-step tool use
MCP Atlas
82.2%
Professional tool use
JobBench
17%
Personal tool use
Toolathlon-Verified
49.4%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
50.4%
Abstract reasoning
ARC-AGI-2
42.5%
Science
GPQA Diamond
89.5%
Agentic computer use
OSWorld-Verified
53.3%
Chart reasoning
CharXiv Reasoning
88.9%
Visual reasoning
BabyVision
39.9%
Multimodal
MMMU
80.4%
Community preference
Arena Elo (Text)
1488
Timeline
Release gapDeepSeek R1-0528 shipped 315 days before Muse Spark

Which is better: DeepSeek R1-0528 or Muse Spark?

DeepSeek R1-0528 and Muse Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek R1-0528 shipped 315 days before Muse Spark, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while Muse Spark is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek R1-0528 and Muse Spark don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek R1-0528 was released by DeepSeek on May 28 2025.

Muse Spark was released by Meta on Apr 8 2026.

DeepSeek R1-0528 is an open weight model released by DeepSeek. Muse Spark is a proprietary model released by Meta.

Other comparisons