Claude Opus 4.5 vs GPT-6 Astra

• Claude Opus 4.5
• GPT-6 Astra

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Head to head on 9 boards: GPT-6 Astra places best on 9 and Claude Opus 4.5 places best on 0. Both ranked on 9 of 19 boards.

Board	Read	Claude Opus 4.5	GPT-6 Astra
Chat2
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#361,474	#311,475best of the picked
MultiChallengeScoretodaytoday	Nov 9todaytoday	#1859.0%
Reasoning7
HLEAccuracytodaytoday	Nov 9todaytoday	#1625.2%	#154.8%best of the picked
Epoch ECIECItodaytoday	Nov 9todaytoday	#55151.8	#1169.1best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#4537.6%	#195.0%best of the picked
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#7286.0%	#295.8%best of the picked
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#4672.6%	#482.2%best of the picked
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#356.9
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#1287.3%
Coding3
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#591,494	#31,770best of the picked
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#176.8%
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#490.2%
Agents and tools3
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#291,186	#31,245best of the picked
BFCLOverall accuracy · staletodaytoday	Nov 9todaytoday	#177.5%
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#2569.8%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#181,468	#111,477best of the picked
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday		#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.