GPT-5.1 vs Gemini 4 Argon vs Claude Fable 5.1

• GPT-5.1
• Gemini 4 Argon
• Claude Fable 5.1

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Head to head on 15 boards: Gemini 4 Argon places best on 8, Claude Fable 5.1 places best on 7 and GPT-5.1 places best on 0. All 3 ranked on 4 of 18 boards.

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GPT-5.1Gemini 4 ArgonClaude Fable 5.1

Board	Read	GPT-5.1	Gemini 4 Argon	Claude Fable 5.1
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#591,456	#21,523best of the picked	#61,504
MultiChallengeScoretodaytoday	Nov 9todaytoday	#1263.4%	#278.7%best of the picked
Reasoning7
Epoch ECIECItodaytoday	Nov 9todaytoday	#59150.9	#6166.4	#5166.9best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#5317.6%	#591.3%best of the picked	#790.0%
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#6487.6%	#196.4%best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday	#1823.7%		#246.5%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#750.4best of the picked	#950.0
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday			#183.4%
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#2486.4%
Coding3
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#392.2%	#292.2%best of the picked
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday		#101,683	#51,746best of the picked
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#1466.0%
Agents and tools2
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#3550.1%	#190.7%best of the picked	#387.2%
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		#1028 tok/sbest of the picked	#1422 tok/s
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday		#13$8.00best of the picked	#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.