GPT-5.4 Mini vs Claude Fable 5.1

• GPT-5.4 Mini
• Claude Fable 5.1

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Head to head on 6 boards: Claude Fable 5.1 places best on 6 and GPT-5.4 Mini places best on 0. Both ranked on 6 of 15 boards.

Board	Read	GPT-5.4 Mini	Claude Fable 5.1
Chat1
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#721,447	#61,504best of the picked
Reasoning6
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#6066.4%	#183.4%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#66149.3	#5166.9best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#5118.9%	#790.0%best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday		#246.5%
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#950.0
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#6986.9%
Coding2
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#292.2%
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday		#51,746
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#3456.7%	#387.2%best of the picked
Search ArenaArena ratingtodaytoday	Nov 9todaytoday		#71,227
Vision2
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#461,250	#131,288best of the picked
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#21,499
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.