MentionFox lists 24 Generative AI companies for 2021. Of them, 24 are Y Combinator companies (the newest batch here is Summer 2021, with 14).
Other years
All years (273) 2026 (31) 2025 (45) 2024 (50) 2023 (64) 2022 (25)
Generative AI startups in 2021
| Company | What it does | Date | Amount | Round / stage | Record |
|---|---|---|---|---|---|
| Affogato AI | Affogato AI — Your Agent for instant TikToks, Reels, and ads. | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Bytebot | Bytebot is the open source container for AI desktop agents. | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Cero | Automated communication between hospitals and patients in Latam | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| CoLoop | AI Copilot for insights & strategy | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Exa | Web search rebuilt for LLMs | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Hudson Labs (formerly Bedrock AI) | AI-powered equity research software | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| MobileBoost | AI native mobile testing. | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Openlayer | The fastest way to ship airtight AI | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Output Biosciences | The foundation for the next era of biology | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Potion | AI for product formulation | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Spark Studio | The most magical personal Voice-Led AI English Learning Buddy for Kids | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Tavus | Building the human layer of AI | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| Vogent | Build Voice AI Agents | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| WarpBuild | Accelerate software development with WarpBuild's 10x faster CI infra. | Summer 2021 | Y Combinator batch | Y Combinator listing | |
| arnata | AI workers for the logistics industry | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Compose.ai | Cut your writing time by 40% with AI-powered autocomplete | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| DreamWorld | DreamWorld is a next-gen Minecraft with generative AI building | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Navattic | Interactive product demos | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Ollama | Get up and running with large language models. | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Pibit.ai | The fastest path from submission to better decisions. | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Simplify | Helping a billion people build their dream career | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Supadock | Multi-agent AI for physical logistics operations | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Topline Pro | Generative AI powered Shopify for home service professionals | Winter 2021 | Y Combinator batch | Y Combinator listing | |
| Zoko | Better Business on WhatsApp | Winter 2021 | Y Combinator batch | Y Combinator listing |
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Figures come only from the record linked in each row; a blank means the record gives none. How these lists are built.