GPT-5.2 vs Muse Spark 1.1 vs Claude Fable 5.1

• GPT-5.2
• Muse Spark 1.1
• Claude Fable 5.1

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Head to head on 10 boards: Claude Fable 5.1 places best on 9, Muse Spark 1.1 places best on 1 and GPT-5.2 places best on 0. All 3 ranked on 7 of 19 boards.

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GPT-5.2Muse Spark 1.1Claude Fable 5.1

Board	Read	GPT-5.2	Muse Spark 1.1	Claude Fable 5.1
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#291,476	#131,490	#61,504best of the picked
MultiChallengeScoretodaytoday	Nov 9todaytoday		#475.3%
Reasoning7
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#3874.6%	#3575.3%	#183.4%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#45154.4	#42154.9	#5166.9best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday	#1427.8%		#246.5%best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#4152.9%		#790.0%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday			#950.0
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#1087.4%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#3191.4%
Coding3
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#781,417	#441,542	#51,746best of the picked
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday			#292.2%
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#672.8%
Agents and tools3
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#2767.6%	#288.1%best of the picked	#387.2%
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#331,161		#71,227best of the picked
BFCLOverall accuracy · staletodaytoday	Nov 9todaytoday	#1455.9%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#371,425	#91,479	#21,499best of the picked
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#251,278	#241,279	#131,288best of the picked
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.