Mistral AI vs OpenAI vs Microsoft vs DeepSeek

Head to head on 21 boards: OpenAI places best on 16, DeepSeek places best on 3, Mistral AI places best on 1 and Microsoft places best on 1. All 4 ranked on 2 of 27 boards.

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Mistral AIOpenAIMicrosoftDeepSeek

Board	Read	Mistral AI	OpenAI	Microsoft	DeepSeek
Chat2
MultiChallengeScoretodaytoday	Nov 9todaytoday		#182.0%best of the pickedGPT-6.1 Sol		#574.9%DeepSeek V4P1 Flash
Text ArenaArena ratingtodaytoday	Nov 9todaytoday		#191,485best of the pickedGPT-5.6 Sol		#321,475DeepSeek V4.1 Flash
Reasoning7
MMLU-ProAccuracy · staletodaytoday	Nov 9todaytoday	#9467.9%Mistral Large 2411	#389.3%best of the pickedo1	#7576.0%Phi 4 Plus	#3385.0%DeepSeek-V3.2
Epoch ECIECItodaytoday	Nov 9todaytoday	#43154.7Mistral Large 4 High	#1169.1best of the pickedGPT-6 Astra		#19159.3DeepSeek V4.1 Flash
ARC-AGI-2Scoretodaytoday	Nov 9todaytoday	#840.0%Magistral	#195.0%best of the pickedGPT-6 Astra		#1978.1%DeepSeek V4.1 Flash
GPQA DiamondAccuracytodaytoday	Nov 9todaytoday	#4390.2%Mistral Large 4 0 OSS	#295.8%best of the pickedGPT-6 Astra		#2193.2%DeepSeek V4.1 Flash
AA IntelligenceIndextodaytoday	Nov 9todaytoday	#2726.1Mistral Large 4 High	#356.9best of the pickedGPT-6 Astra		#1632.6DeepSeek V4.1 Flash
LiveBenchGlobal averagetodaytoday	Nov 9todaytoday	#5071.8%Mistral Large 4 High	#482.2%best of the pickedGPT-6 Astra		#881.1%DeepSeek V4.1 Flash
HLEAccuracytodaytoday	Nov 9todaytoday	#404.5%Mistral 3	#154.8%best of the pickedGPT-6 Astra
Coding4
Aider PolyglotPass rate · staletodaytoday	Nov 9todaytoday	#4611.1%Codestral 25.01	#188.0%best of the pickedGPT-5		#874.2%DeepSeek-V3.2
WebDev ArenaArena ratingtodaytoday	Nov 9todaytoday	#391,560Mistral Large 4 High	#31,770best of the pickedGPT-6 Astra		#141,665DeepSeek V4.1 Flash
SWE-bench VerifiedResolved · staletodaytoday	Nov 9todaytoday	#2256.4%Devstral Small (2512)	#672.8%best of the pickedGPT-5.2		#1170.0%DeepSeek-V3.2
SWE-Bench ProResolvedtodaytoday	Nov 9todaytoday		#490.2%GPT-6 Astra
Agents and tools3
BFCLOverall accuracy · staletodaytoday	Nov 9todaytoday	#3438.4%Mistral Large 2411	#763.0%best of the pickedo3	#5028.8%Phi 4	#1256.7%DeepSeek-V3.2
Search ArenaArena ratingtodaytoday	Nov 9todaytoday		#11,255GPT-5.6 Sol
MCP AtlasPass ratetodaytoday	Nov 9todaytoday		#1481.8%GPT-5.6
Vision2
Vision ArenaArena ratingtodaytoday	Nov 9todaytoday	#621,230Mistral Large 4 High	#81,293best of the pickedGPT-6.1 Sol		#341,263DeepSeek V4.1 Flash
Document ArenaArena ratingtodaytoday	Nov 9todaytoday		#51,486GPT-5.6 Sol
Image2
Text-to-ImageArena ratingtodaytoday	Nov 9todaytoday		#11,429best of the pickedGPT Image 2.5 Sunburst	#61,330MAI Image 2.6
Image EditArena ratingtodaytoday	Nov 9todaytoday		#11,517best of the pickedGPT Image 2.5 Sunburst	#41,467MAI Image 2.7
Video1
Text-to-VideoArena ratingtodaytoday	Nov 9todaytoday		#131,367Sora 2 Pro
Speech2
Open ASRAverage WERtodaytoday	Nov 9todaytoday	#367.44 WERVoxtral-Small-24B-2507 (mistralai)	#186.80 WERgpt-transcribe (openai)	#35.55 WERbest of the pickedazure-speech-09-2026 (microsoft)
Speech ArenaArena ratingtodaytoday	Nov 9todaytoday	#151,217best of the pickedVoxtral 3 TTS	#421,107TTS 1 Hd	#311,145Azure Hd 2.5
Embeddings1
MTEBMean task scoretodaytoday	Nov 9todaytoday			#174.3%harrier-oss-v1-27b (microsoft)
Speed1
AA SpeedOutput speedtodaytoday	Nov 9todaytoday	#2114 tok/sMistral Large 4 High	#1522 tok/sGPT-6.1 Sol		#1323 tok/sbest of the pickedDeepSeek V4 Pro 0813
Price1
AA PriceBlended pricetodaytoday	Nov 9todaytoday		#6$2.00GPT-6.1 Terra		#3$0.53best of the pickedDeepSeek V4.1 Flash
Usage1
OpenRouterWeekly tokenstodaytoday	Nov 9todaytoday		#47.2T tokGPT-6 Luna		#156.0T 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.