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14,448 startups · 29 programs

a16z speedrun

Andreessen Horowitz · Pre-seed and seed, AI, games, consumer and more; 12 weeks in San Francisco

ApplyPortfolio
Next deadline
Rolling
Applications are always open
Next batch
Jan 2027
Official · in 8w
Offer
Up to $1,000,000
$500K for 10% on a SAFE + $500K in the next round
Batches a year
2
327 companies tracked

What it offers

Terms
speedrun invests $500K for 10% upfront in a SAFE and another $500K in your next round within 18 months, plus $10M+ in partner credits. It asks for pro rata rights and takes no board seat. Source
Where
San Francisco
Cadence
Two cohorts a year in San Francisco, 12 weeks each
Acceptance rate
under 0.4% (2026)
Teams per recent cohort
60 to 70 (2026)
Startups funded since 2023
300+ (2026)

Batches and deadlines

a16z speedrun batches, upcoming first, with deadlines and company counts
BatchStarts
Coming up
SR008runs late January through April 2027; no deadline published; off-cycle applications are reviewed for the upcoming cohortJan 2027in 7 weeks
Earlier
SR007summer + fall 2026 San Francisco cohort; deadline May 17, 2026 at 11:59 PM PT; demo day date from speedrun.a16z.com/demo-dayDeadline May 17n/a
SR006cohort label from the companies page; dates not publishedn/a
SR005cohort label from the companies page; dates not publishedn/a
SR004cohort label from the companies page; dates not publishedn/a
SR003cohort label from the companies page; dates not publishedn/a
SR002cohort label from the companies page; dates not publishedn/a
SR001cohort label from the companies page; dates not publishedn/a

a16z speedrun companies, rising first

SR003
AInunu.aiBuilding the first multimodal agents to play and test games.YC W23ZHStartup →AIKeewanoThe first database built for machine reasoning at scale, giving agents the context to answer questions traditional databases were never designed to handle.speedrun SR003Tel AvivStartup →AIEcho ChunkAI Strategy Games that Generate Themselves. Starting with Echo Chess: the viral "Wordle for Chess"speedrun SR003San FranciscoStartup →Other2weeksMaking breakout hits on the open web for you and your friends.speedrun SR003New YorkStartup →OtherAdzapMobile-grade performance and attribution solution for PC/Console gamesspeedrun SR003Los AngelesStartup →AIAvatarOSMaking Digital Humans Realspeedrun SR003Los AngelesStartup →AICloutedClouted: where culture meets distribution.speedrun SR003Los AngelesStartup →OtherCommunioncreating Altar, a social deduction royale.speedrun SR003VeniceStartup →OtherDefinitely GamesBuilding the future of online coop games.speedrun SR003Los AngelesStartup →OtherEclipsa AIPioneering Conversational Commerce in gaming through social messaging.speedrun SR003LondonStartup →AIElseBuild something Elsespeedrun SR003OaklandStartup →AIEndo HealthWe are building the first AI clinic for weight lossspeedrun SR003San FranciscoStartup →AIEntropiaAI Native Anime & Comics for Gen Z.speedrun SR003StanfordStartup →AIExia LabsSee what happens next.speedrun SR003BellevueStartup →OtherFlat2VR StudiosTransforming your favorite games into immersive VR experiences. Flat2VR Studios brings the classics to life in virtual reality.speedrun SR003Wesley ChapelStartup →AIHatsu Labsgamingspeedrun SR003LAStartup →OtherHuman ComputerBuilding the world's greatest triple-I game studio.speedrun SR003Bay AreaStartup →OtherLFGThe Hit Factory Building the Biggest Games for Gen Alphaspeedrun SR003San FranciscoStartup →AILittle UmbrellaSocial AI Games for next generation!speedrun SR003Palo AltoStartup →AIManifestGen Z mental health. 15.8 million manifestations since the start of Speedrun.speedrun SR003NYCStartup →AINoMiNoMi gives you the end result of therapy and all you have to do is play a game.speedrun SR003LondonStartup →AIOrbitalBuilding the Pixar of AI.speedrun SR003Los AngelesStartup →OtherRefactor GamesNext-generation sports video gamesspeedrun SR003Santa MonicaStartup →Developer toolsRUNREALAccelerate Game Development with RUNREALspeedrun SR003Los AngelesStartup →AISchemataVirtual Training and Simulation for Defense and Enterprisespeedrun SR003San FranciscoStartup →AISekaiWhat You Imagine is What You get.speedrun SR003SunnyvaleStartup →OtherSomeSomeChat with the worldspeedrun SR003New YorkStartup →OtherSoundmapTop 5 in Music on the App Store :)speedrun SR003New YorkStartup →AISpark SpaceHelping teachers and students use AI to enhance learningspeedrun SR003San FranciscoStartup →OtherTaleMonster GamesRedefining what casual means in mobile gamingspeedrun SR003IstanbulStartup →AITapTap LiveNext generation social games 💛 starting with TapTap Trivia (played by 100K+ Gen Z college students)speedrun SR003Los AngelesStartup →OtherVRLGames that go viralspeedrun SR003Santa MonicaStartup →
Company
nunu.aiBuilding the first multimodal agents to play and test games.team of 52 programsYC W23 +1ActiveAI
KeewanoThe first database built for machine reasoning at scale, giving agents the context to answer questions traditional databases were never designed to handle.on 3 Glyph sourcesspeedrun SR003Not statedAI
Echo ChunkAI Strategy Games that Generate Themselves. Starting with Echo Chess: the viral "Wordle for Chess"2 programsspeedrun SR003 +1Not statedAI
2weeksMaking breakout hits on the open web for you and your friends.speedrun SR003Not statedOther
AdzapMobile-grade performance and attribution solution for PC/Console gamesspeedrun SR003Not statedOther
AvatarOSMaking Digital Humans Realspeedrun SR003Not statedAI
CloutedClouted: where culture meets distribution.speedrun SR003Not statedAI
Communioncreating Altar, a social deduction royale.speedrun SR003Not statedOther
Definitely GamesBuilding the future of online coop games.speedrun SR003Not statedOther
Eclipsa AIPioneering Conversational Commerce in gaming through social messaging.speedrun SR003Not statedOther
ElseBuild something Elsespeedrun SR003Not statedAI, Devtools
Endo HealthWe are building the first AI clinic for weight lossspeedrun SR003Not statedAI
EntropiaAI Native Anime & Comics for Gen Z.speedrun SR003Not statedAI
Exia LabsSee what happens next.speedrun SR003Not statedAI
Flat2VR StudiosTransforming your favorite games into immersive VR experiences. Flat2VR Studios brings the classics to life in virtual reality.speedrun SR003Not statedOther
Hatsu Labsgamingspeedrun SR003Not statedAI
Human ComputerBuilding the world's greatest triple-I game studio.speedrun SR003Not statedOther
LFGThe Hit Factory Building the Biggest Games for Gen Alphaspeedrun SR003Not statedOther
Little UmbrellaSocial AI Games for next generation!speedrun SR003Not statedAI, Devtools
ManifestGen Z mental health. 15.8 million manifestations since the start of Speedrun.speedrun SR003Not statedAI
NoMiNoMi gives you the end result of therapy and all you have to do is play a game.speedrun SR003Not statedAI
OrbitalBuilding the Pixar of AI.speedrun SR003Not statedAI
Refactor GamesNext-generation sports video gamesspeedrun SR003Not statedOther
RUNREALAccelerate Game Development with RUNREALspeedrun SR003Not statedDevtools
SchemataVirtual Training and Simulation for Defense and Enterprisespeedrun SR003Not statedAI
SekaiWhat You Imagine is What You get.speedrun SR003Not statedAI
SomeSomeChat with the worldspeedrun SR003Not statedOther
SoundmapTop 5 in Music on the App Store :)speedrun SR003Not statedOther
Spark SpaceHelping teachers and students use AI to enhance learningspeedrun SR003Not statedAI
TaleMonster GamesRedefining what casual means in mobile gamingspeedrun SR003Not statedOther
TapTap LiveNext generation social games 💛 starting with TapTap Trivia (played by 100K+ Gen Z college students)speedrun SR003Not statedAI
VRLGames that go viralspeedrun SR003Not statedOther

About a16z speedrun

Run by
Andreessen Horowitz
Companies from
the speedrun companies API (what speedrun.a16z.com/companies reads)
Dates checked
2026-09-25, from 4 official pages
Refresh
Monthly, on the first Monday; last read 2026-11-02, 321 rows
On the list now
321 of 327

Only what the program publishes is shown. Status is left as Not stated unless the program's own page says it.