Monthly roundup · AI · October 2026

AI startup funding, October 2026: DeepSeek's $15B Series B leads 411 rounds

By Millionrounds ResearchPublished 1 November 2026Updated 4 November 2026

We read 411 equity rounds in AI announced in October 2026, raising $44B between them: 56% of all the rounds we read that month and 74% of the money. The largest was DeepSeek's $15B Series B. The median seed round was $5.5M, against $7.0M over the last twelve months in AI; at Series A it was $17M. Andreessen Horowitz led the most rounds, with 6.

Equity rounds411in AI, 364 with an amount
Raised$44Bacross those rounds
Lead named80%of rounds say who led
Share of the month56%of rounds; 74% of the money

The biggest rounds

  1. 1DeepSeekSeries B · China$15B
  2. 2CohereSeries E · Canada · led by Schwarz Group$5.0B
  3. 3LambdaGrowth · United States · led by Coatue, Clarus Ventures$4.0B
  4. 4TenstorrentSeries E · United States · led by InnovationX, Trace Capital$1.5B
  5. 5Flapping AirplanesSeries A · United States · led by Index Ventures, Lux Capital$1.0B
  6. 6SSWI GroupGrowth · Singapore$894M
  7. 7TypeSafe AISeries A · United States · led by Andreessen Horowitz$870M
  8. 8MModal Labs Inc.Series D · United States · led by Accel$750M
  9. 9FractileSeries C · United Kingdom · led by Lightspeed Venture Partners, Redpoint$700M
  10. 10FuriosaAISeries D · South Korea · led by National Growth Fund, National Growth Fund of Korea$620M

Day by day

Equity rounds in AI announced each day of October. The busiest day was 29 October, with 35.

1 October31 October

By stage, against the year

Each stage's median this month beside its twelve-month median: the sector's own where we hold enough rounds for a benchmark, otherwise the one across all sectors.

Pre-seed78$2.6Mthis month$2.1M12 months here
Seed142$5.5Mthis month$7.0M12 months here
Series A99$17Mthis month$21M12 months here
Series B37$50Mthis month$55M12 months here
Series C17$150Mthis month$110M12 months here
Series D10$140Mthis month$147M12 months here
Growth18$56Mthis month$150M12 months here

The most active leads

Firms that led two or more of the month's rounds in AI.

Where

United States had the most AI rounds this month.

Against the month

  • Rounds, AI411
  • Rounds, all sectors733
  • Raised, AI$44B
  • Raised, all sectors$59B

The whole of October 2026

Other sectors in October

100 roundsFintech→72 roundsHealthcare→67 roundsSoftware→67 roundsRobotics→56 roundsManufacturing→44 roundsSaaS→44 roundsConstruction→42 roundsHardware & Electronics→41 roundsBiotech→34 roundsBig Data & Analytics→33 roundsEnergy→33 roundsLogistics→32 roundsEnterprise Software→29 roundsAerospace & Space→29 roundsHealthtech→28 roundsCybersecurity→26 roundsDefence Tech→25 roundsCloud→24 roundsEntertainment→23 roundsB2C→23 roundsFinancial Services→22 roundsMedical Devices→20 roundsCleantech→19 roundsE-commerce→19 roundsFood & Beverage→18 roundsReal Estate→18 roundsDeeptech→18 roundsSemiconductors→17 roundsAgtech→16 roundsDeveloper Tools→15 roundsWeb3 & Crypto→15 roundsRetail→15 roundsMartech→14 roundsSupply Chain→14 roundsInsurtech→14 roundsTelecoms→14 roundsClimate Tech→13 roundsRegtech→13 roundsAutomotive & EVs→13 roundsChemicals & Materials→12 roundsFuture of Work→12 roundsB2B→12 roundsMedia→12 roundsGaming→11 roundsProfessional Services→11 roundsMarketplaces→11 roundsHR Tech→11 roundsEducation→11 roundsSalestech→10 roundsProptech→10 roundsPharma→10 roundsFashion→10 roundsTravel & Hospitality→