Claude Opus 4.8 vs GPT-6 Astra

• Claude Opus 4.8
• GPT-6 Astra

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Head to head on 9 boards: GPT-6 Astra places best on 6 and Claude Opus 4.8 places best on 3. Both ranked on 9 of 15 boards.

Board	Read	Claude Opus 4.8	GPT-6 Astra
Chat1
Text ArenaArena ratingtodaytoday	Nov 9todaytoday	#241,482best of the picked	#311,475
Reasoning6
Epoch ECIECItodaytoday	Nov 9todaytoday	#18159.9	#1169.1best of the picked
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#2472.1%	#195.0%best of the picked
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#3291.0%	#295.8%best of the picked
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#2976.2%	#482.2%best of the picked
HLEAccuracytodaytoday	Nov 9todaytoday		#154.8%
AA IntelligenceIndextodaytoday	Nov 9todaytoday		#356.9
Coding2
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#411,556	#31,770best of the picked
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#490.2%
Agents and tools2
Search ArenaArena ratingtodaytoday	Nov 9todaytoday	#231,195	#31,245best of the picked
MCP AtlasPass ratetodaytoday	Nov 9todaytoday	#1282.2%
Vision2
Document ArenaArena ratingtodaytoday	Nov 9todaytoday	#71,486best of the picked	#111,477
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#151,286best 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.