OpenAI vs DeepSeek

• OpenAI
• DeepSeek

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Head to head on 15 boards: OpenAI places best on 13 and DeepSeek places best on 2. Both ranked on 15 of 26 boards.

Board	Read	OpenAI	DeepSeek
Chat2
MultiChallengeScoretodaytoday	Sep 27todaytoday	#469.2%best of the pickedGPT-5.4 Pro	#2446.1%DeepSeek V3P1
Text ArenaArena ratingtodaytoday	Sep 27todaytoday	#161,483best of the pickedGPT-5.6 Sol	#251,477DeepSeek V4.1 Flash
Reasoning7
GPQA DiamondAccuracytodaytoday	Sep 27todaytoday	#195.8%best of the pickedGPT-6 Astra	#2091.7%DeepSeek V4 Pro 0813
Epoch ECIECItodaytoday	Sep 27todaytoday	#1166.6best of the pickedGPT-6 Astra	#24155.4DeepSeek V4 Pro 0813
ARC-AGI-2Scoretodaytoday	Sep 27todaytoday	#195.0%best of the pickedGPT-6 Astra	#2361.4%DeepSeek V4 Flash Vision
AA IntelligenceIndextodaytoday	Sep 27todaytoday	#352.7best of the pickedGPT-6 Astra	#1839.5DeepSeek V4.1 Flash
MMLU-ProAccuracy · staletodaytoday	Sep 27todaytoday	#389.3%best of the pickedo1	#3385.0%DeepSeek-V3.2
LiveBenchGlobal averagetodaytoday	Sep 27todaytoday	#482.2%best of the pickedGPT-6 Astra	#681.1%DeepSeek V4.1 Flash
HLEAccuracytodaytoday	Sep 27todaytoday	#154.8%GPT-6 Astra
Coding4
Aider PolyglotPass rate · staletodaytoday	Sep 27todaytoday	#188.0%best of the pickedGPT-5	#874.2%DeepSeek-V3.2
WebDev ArenaArena ratingtodaytoday	Sep 27todaytoday	#21,792best of the pickedGPT-6 Astra	#131,621DeepSeek V4.1 Flash
SWE-bench VerifiedResolved · staletodaytoday	Sep 27todaytoday	#672.8%best of the pickedGPT-5.2	#1170.0%DeepSeek-V3.2
SWE-Bench ProResolvedtodaytoday	Sep 27todaytoday	#390.2%GPT-6 Astra
Agents and tools3
BFCLOverall accuracytodaytoday	Sep 27todaytoday	#763.0%best of the pickedo3	#1256.7%DeepSeek-V3.2
Search ArenaArena ratingtodaytoday	Sep 27todaytoday	#11,257GPT-5.6 Sol
MCP AtlasPass ratetodaytoday	Sep 27todaytoday	#1181.8%GPT-5.6
Vision2
Document ArenaArena ratingtodaytoday	Sep 27todaytoday	#61,486GPT-5.5
Vision ArenaArena ratingtodaytoday	Sep 27todaytoday	#111,287GPT-5.5
Image2
Text-to-ImageArena ratingtodaytoday	Sep 27todaytoday	#11,424GPT Image 2.5 Sunburst
Image EditArena ratingtodaytoday	Sep 27todaytoday	#11,526GPT Image 2.5 Sunburst
Video1
Text-to-VideoArena ratingtodaytoday	Sep 27todaytoday	#111,368Sora 2 Pro
Speech2
Speech ArenaArena ratingtodaytoday	Sep 27todaytoday	#321,104TTS 1 Hd
Open ASRAverage WERtodaytoday	Sep 27todaytoday	#535.78 WERwhisper-large-v3 (openai)
Speed1
AA SpeedOutput speedtodaytoday	Sep 27todaytoday	#5154 tok/sGPT-6 Luna	#3232 tok/sbest of the pickedDeepSeek V4.1 Flash
Price1
AA PriceBlended pricetodaytoday	Sep 27todaytoday	#1$0.20best of the pickedGPT-6 Luna	#4$0.53DeepSeek V4.1 Flash
Usage1
OpenRouterWeekly tokenstodaytoday	Sep 27todaytoday	#58.6T tokGPT-5.6 Luna	#118.6T tokbest of the pickedDeepSeek V4.1 Flash

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.