Claude Opus 5.5 vs Muse Spark 1.1

• Claude Opus 5.5
• Muse Spark 1.1

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Head to head on 6 boards: Claude Opus 5.5 places best on 5 and Muse Spark 1.1 places best on 1. Both ranked on 6 of 15 boards.

Board	Read	Claude Opus 5.5	Muse Spark 1.1
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#41,505best of the picked	#131,490
MultiChallengeScoretodaytoday	Nov 9todaytoday		#475.3%
Reasoning5
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#283.2%best of the picked	#3575.3%
Epoch ECIECItodaytoday	Nov 9todaytoday	#3168.4best of the picked	#42154.9
AA IntelligenceIndextodaytoday	Nov 9todaytoday	#259.1
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#393.3%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#3990.6%
Coding1
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#11,814best of the picked	#441,542
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#585.4%	#288.1%best of the picked
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#111,213
Vision2
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#51,296best of the picked	#241,279
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#91,479
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday	#1125 tok/s
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday	#13$8.00
Usage1
OpenRouterWeekly tokenstodaytoday	Nov 9todaytoday	#66.8T tok

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.