Claude Opus 5 vs Muse Spark 1.1

• Claude Opus 5
• Muse Spark 1.1

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Head to head on 7 boards: Claude Opus 5 places best on 6 and Muse Spark 1.1 places best on 1. Both ranked on 7 of 12 boards.

Board	Read	Claude Opus 5	Muse Spark 1.1
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#121,490best of the picked	#131,490
MultiChallengeScoretodaytoday	Nov 9todaytoday		#475.3%
Reasoning4
Epoch ECIECItodaytoday	Nov 9todaytoday	#8164.4best of the picked	#42154.9
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#1180.1%best of the picked	#3575.3%
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#690.4%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#1693.9%
Coding2
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#81,691best of the picked	#441,542
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday	#198.0%
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#485.8%	#288.1%best of the picked
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#101,213
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#61,486best of the picked	#91,479
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#161,285best of the picked	#241,279

Green marks the best placing among the picked where two or more are ranked; ties are marked for each. Ranks are each board's own order (lower is better), scores as the board published them. Dash: not on that board.