K2 Horizon 375B A23B vs Muse Spark vs GPT-6 Astra

• IOK2 Horizon 375B A23B
• Muse Spark
• GPT-6 Astra

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Head to head on 8 boards: GPT-6 Astra places best on 5, Muse Spark places best on 2 and K2 Horizon 375B A23B places best on 1. All 3 ranked on 0 of 16 boards.

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IOK2 Horizon 375B A23BMuse SparkGPT-6 Astra

Board	Read	IOK2 Horizon 375B A23B	Muse Spark	GPT-6 Astra
Chat2
Text ArenaArena ratingtodaytoday	Oct 5todaytoday		#121,489best of the picked	#261,477
MultiChallengeScoretodaytoday	Oct 5todaytoday		#175.5%
Reasoning6
HLEAccuracytodaytoday	Oct 5todaytoday		#640.6%	#154.8%best of the picked
GPQA DiamondAccuracytodaytoday	Oct 5todaytoday		#4189.8%	#195.8%best of the picked
Epoch ECIECItodaytoday	Oct 5todaytoday		#40152.1	#2166.5best of the picked
AA IntelligenceIndextodaytoday	Oct 5todaytoday	#2830.5		#452.7best of the picked
ARC-AGI-2Scoretodaytoday	Oct 5todaytoday			#195.0%
LiveBenchGlobal averagetodaytoday	Oct 5todaytoday			#482.2%
Coding2
WebDev ArenaArena ratingtodaytoday	Oct 5todaytoday			#21,788
SWE-Bench ProResolvedtodaytoday	Oct 5todaytoday			#390.2%
Agents and tools1
MCP AtlasPass ratetodaytoday	Oct 5todaytoday		#982.2%
Vision2
Vision ArenaArena ratingtodaytoday	Oct 5todaytoday		#61,294best of the picked	#181,284
Document ArenaArena ratingtodaytoday	Oct 5todaytoday		#241,444	#131,468best of the picked
Speed1
AA SpeedOutput speedtodaytoday	Oct 5todaytoday	#7124 tok/sbest of the picked		#1954 tok/s
Price1
AA PriceBlended pricetodaytoday	Oct 5todaytoday			#24$20.0
Usage1
OpenRouterWeekly tokenstodaytoday	Oct 5todaytoday			#171.4T tok

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.