GPT-5.1 vs Claude Fable 5.1

• GPT-5.1
• Claude Fable 5.1

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Head to head on 8 boards: Claude Fable 5.1 places best on 8 and GPT-5.1 places best on 0. Both ranked on 8 of 18 boards.

Board	Read	GPT-5.1	Claude Fable 5.1
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#591,456	#61,504best of the picked
MultiChallengeScoretodaytoday	Nov 9todaytoday	#1263.4%
Reasoning7
HLEAccuracytodaytoday	Nov 9todaytoday	#1823.7%	#246.5%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#59150.9	#5166.9best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#5317.6%	#790.0%best of the picked
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday		#183.4%
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#950.0
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#2486.4%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#6487.6%
Coding3
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#292.2%
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday		#51,746
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#1466.0%
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#3550.1%	#387.2%best of the picked
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#301,184	#71,227best of the picked
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#391,416	#21,499best of the picked
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#441,251	#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.