Grok 4 vs GPT-6 Astra vs Claude Fable 5.1 vs Inkling Small 2

Head to head on 15 boards: GPT-6 Astra places best on 8, Claude Fable 5.1 places best on 8, Grok 4 places best on 0 and Inkling Small 2 places best on 0 (a tie counts for each). All 4 ranked on 0 of 18 boards.

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Grok 4GPT-6 AstraClaude Fable 5.1?Inkling Small 2

Board	Read	Grok 4	GPT-6 Astra	Claude Fable 5.1	?Inkling Small 2
Chat1
Text ArenaArena ratingtodaytoday	Nov 9todaytoday		#311,475	#61,504best of the picked
Reasoning7
Epoch ECIECItodaytoday	Nov 9todaytoday	#78146.9	#1169.1best of the picked	#5166.9
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#5416.0%	#195.0%best of the picked	#790.0%
HLEAccuracytodaytoday	Nov 9todaytoday		#154.8%best of the picked	#246.5%
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday		#482.2%	#183.4%best of the picked
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#6887.0%	#295.8%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#356.9best of the picked	#950.0
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#1887.0%
Coding3
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#490.2%	#292.2%best of the picked	#986.3%
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday		#31,770best of the picked	#51,746
Aider PolyglotPass rate · staletodaytoday	Nov 9todaytoday	#579.6%
Agents and tools3
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#381,123	#31,245best of the picked	#71,227
MCP AtlasPass ratetodaytoday	Nov 9todaytoday			#387.2%best of the picked	#585.4%
BFCLOverall accuracy · staletodaytoday	Nov 9todaytoday	#863.0%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#111,477	#21,499best of the picked
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday		#171,285	#131,288best of the picked
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday		#1621 tok/s	#1422 tok/sbest of the picked
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday		#17$20.0best of the picked	#17$20.0best of the picked

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.