AI funding rounds in December 2025: 13 rounds
- Moonshot AI raises $500M Series C, . AI models. Led by IDG Capital. Builds the Kimi family of large language models and the Kimi chatbot.
- Lovable raises $330M Series B, . Developer tools. Led by CapitalG, Menlo Ventures. Lets people build web apps and sites by describing them in plain language to an AI.
- PolyAI raises $86M Series D, . AI apps. Led by Georgian, Hedosophia, Khosla Ventures. PolyAI builds AI voice agents that handle customer service phone calls for enterprises.
- Databricks raises $4B Growth, . Data infrastructure. Led by Insight Partners, Fidelity Management & Research Company, J.P. Morgan Asset Management. Databricks runs a cloud data and AI platform built around the lakehouse for analytics, data engineering and AI apps.
- Chai Discovery raises $130M Series B, . AI models. Led by General Catalyst, Oak HC/FT. Chai Discovery builds AI foundation models for predicting and designing molecules such as antibodies for drug discovery.
- OpenAI raises $1B Strategic, . AI models. Led by The Walt Disney Company. Builds the GPT family of AI models and the ChatGPT assistant.
- Harness raises $200M Series E, . Developer tools. Led by Goldman Sachs. Harness offers an AI powered software delivery platform covering CI/CD, testing, security and cloud cost management.
- RelationalAI raises $23M Strategic, . AI apps. RelationalAI builds a decision intelligence system that runs natively inside the Snowflake data cloud.
- fal raises $140M Series D, . AI infrastructure. Led by Sequoia, Kleiner Perkins, NVIDIA. fal is a cloud platform that hosts and serves generative image, video and audio models for developers through one API.
- Harvey raises $160M, . AI apps. Led by Andreessen Horowitz. Builds generative AI tools for law firms and in-house legal teams.
- Gradium raises $70M Seed, . AI models. Led by FirstMark Capital, Eurazeo. Gradium builds real-time voice AI models for text-to-speech, speech-to-text and live translation.
- Black Forest Labs raises $300M Series B, . AI models. Led by Salesforce Ventures, AMP. Builds the FLUX family of image and video generation models.
- Raindrop raises $15M Seed, . Developer tools. Led by Lightspeed. Raindrop is a monitoring platform that detects silent failures in production AI agents.