Kimi K2 Thinking vs Muse Spark 1.1 vs Qwen3.8 Max (0902) vs GPT-6 Astra

Head to head on 12 boards: GPT-6 Astra places best on 6, Muse Spark 1.1 places best on 3, Qwen3.8 Max (0902) places best on 3 and Kimi K2 Thinking places best on 0. All 4 ranked on 1 of 19 boards.

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Kimi K2 ThinkingMuse Spark 1.1Qwen3.8 Max (0902)GPT-6 Astra

Board	Read	Kimi K2 Thinking	Muse Spark 1.1	Qwen3.8 Max (0902)	GPT-6 Astra
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday		#131,490best of the picked	#201,483	#311,475
MultiChallengeScoretodaytoday	Nov 9todaytoday	#2455.4%	#475.3%best of the picked
Reasoning7
Epoch ECIECItodaytoday	Nov 9todaytoday	#85145.5	#42154.9	#27157.4	#1169.1best of the picked
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday		#3575.3%	#1678.5%	#482.2%best of the picked
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday			#2692.7%	#295.8%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday			#1533.7	#356.9best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday				#154.8%
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday				#195.0%
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#5681.0%
Coding4
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday		#441,542	#121,677	#31,770best of the picked
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday				#490.2%
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#1863.4%
Aider PolyglotPass rate · staletodaytoday	Nov 9todaytoday	#1959.1%
Agents and tools2
Search ArenaArena ratingtodaytoday	Nov 9todaytoday			#61,228	#31,245best of the picked
MCP AtlasPass ratetodaytoday	Nov 9todaytoday		#288.1%
Vision2
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday		#241,279	#21,300best of the picked	#171,285
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#91,479best of the picked		#111,477
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday			#260 tok/sbest of the picked	#1621 tok/s
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday			#8$3.00best 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.