Claude Opus 4.6 vs GPT-6 Astra

• Claude Opus 4.6
• GPT-6 Astra

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Head to head on 10 boards: GPT-6 Astra places best on 7 and Claude Opus 4.6 places best on 3. Both ranked on 10 of 18 boards.

Board	Read	Claude Opus 4.6	GPT-6 Astra
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#71,503best of the picked	#311,475
MultiChallengeScoretodaytoday	Nov 9todaytoday	#2356.0%
Reasoning7
HLEAccuracytodaytoday	Nov 9todaytoday	#1134.4%	#154.8%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#33156.3	#1169.1best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#2669.2%	#195.0%best of the picked
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#4090.5%	#295.8%best of the picked
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#3974.5%	#482.2%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#356.9
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#489.1%
Coding3
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#431,546	#31,770best of the picked
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#490.2%
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#475.6%
Agents and tools2
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#91,222	#31,245best of the picked
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#1976.8%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#31,496best of the picked	#111,477
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#41,299best of the picked	#171,285
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday		#1621 tok/s
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday		#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.