GPT-5 vs Claude Fable 5.1 vs Muse Spark 1.1

• GPT-5
• Claude Fable 5.1
• Muse Spark 1.1

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Head to head on 11 boards: Claude Fable 5.1 places best on 9, Muse Spark 1.1 places best on 2 and GPT-5 places best on 0. All 3 ranked on 3 of 19 boards.

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GPT-5Claude Fable 5.1Muse Spark 1.1

Board	Read	GPT-5	Claude Fable 5.1	Muse Spark 1.1
Chat2
MultiChallengeScoretodaytoday	Nov 9todaytoday	#1363.2%		#475.3%best of the picked
Text ArenaArena ratingtodaytoday	Nov 9todaytoday		#61,504best of the picked	#131,490
Reasoning7
Epoch ECIECItodaytoday	Nov 9todaytoday	#63150.0	#5166.9best of the picked	#42154.9
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday		#183.4%best of the picked	#3575.3%
HLEAccuracytodaytoday	Nov 9todaytoday	#1525.3%	#246.5%best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#589.9%	#790.0%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#950.0
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#1687.1%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#7186.2%
Coding4
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#771,417	#51,746best of the picked	#441,542
Aider PolyglotPass rate · staletodaytoday	Nov 9todaytoday	#188.0%
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#292.2%
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#1665.0%
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday		#387.2%	#288.1%best of the picked
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#271,189	#71,227best of the picked
Vision2
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#641,226	#131,288best of the picked	#241,279
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#21,499best of the picked	#91,479
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday		#1422 tok/s
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday		#17$20.0

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.