GPT-6 Astra vs Claude Fable 5.1

• GPT-6 Astra
• Claude Fable 5.1

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Head to head on 12 boards: Claude Fable 5.1 places best on 8 and GPT-6 Astra places best on 5 (a tie counts for each). Both ranked on 12 of 14 boards.

Board	Read	GPT-6 Astra	Claude Fable 5.1
Chat1
Text ArenaArena ratingtodaytoday	Sep 27todaytoday	#231,478	#51,501best of the picked
Reasoning6
HLEAccuracytodaytoday	Sep 27todaytoday	#154.8%best of the picked	#246.5%
Epoch ECIECItodaytoday	Sep 27todaytoday	#1166.6best of the picked	#2165.0
ARC-AGI-2Scoretodaytoday	Sep 27todaytoday	#195.0%best of the picked	#590.0%
LiveBenchGlobal averagetodaytoday	Sep 27todaytoday	#482.2%	#183.4%best of the picked
AA IntelligenceIndextodaytoday	Sep 27todaytoday	#352.7	#253.4best of the picked
GPQA DiamondAccuracytodaytoday	Sep 27todaytoday	#195.8%
Coding2
WebDev ArenaArena ratingtodaytoday	Sep 27todaytoday	#21,792best of the picked	#31,751
SWE-Bench ProResolvedtodaytoday	Sep 27todaytoday	#390.2%	#292.2%best of the picked
Agents and tools1
MCP AtlasPass ratetodaytoday	Sep 27todaytoday		#287.2%
Vision2
Document ArenaArena ratingtodaytoday	Sep 27todaytoday	#131,468	#21,513best of the picked
Vision ArenaArena ratingtodaytoday	Sep 27todaytoday	#141,284	#91,289best of the picked
Speed1
AA SpeedOutput speedtodaytoday	Sep 27todaytoday	#1763 tok/s	#1569 tok/sbest of the picked
Price1
AA PriceBlended pricetodaytoday	Sep 27todaytoday	#23$20.0best of the picked	#23$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.