Grok 4.5 vs Claude Fable 5.1

• Grok 4.5
• Claude Fable 5.1

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Head to head on 8 boards: Claude Fable 5.1 places best on 8 and Grok 4.5 places best on 0. Both ranked on 8 of 15 boards.

Board	Read	Grok 4.5	Claude Fable 5.1
Chat1
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#461,466	#61,504best of the picked
Reasoning6
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#3475.8%	#183.4%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#40155.1	#5166.9best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#4252.6%	#790.0%best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday		#246.5%
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#950.0
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#1893.4%
Coding2
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#421,553	#51,746best of the picked
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#292.2%
Agents and tools2
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#161,205	#71,227best of the picked
MCP AtlasPass ratetodaytoday	Nov 9todaytoday		#387.2%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#201,466	#21,499best of the picked
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#211,281	#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.