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§ Private Profile · San Francisco, CA, USA; Remote
Open-source tools for benchmarking and evaluating AI agents.
Vibrant Labs is a San Francisco-based software company that develops reinforcement learning environments designed to benchmark and improve the long-horizon capabilities of artificial intelligence agents. Operating within the B2B infrastructure sector, the enterprise builds specialized simulation frameworks tailored for training autonomous browser and computer-use AI models. Backed by the prominent startup accelerator Y Combinator as a participant in its Winter 2024 batch, the early-stage developer tools provider currently operates with a workforce of exactly two employees. Formerly known under the corporate identities Exploding Gradients and Ragas, the organization actively contributes to the broader open-source generative AI ecosystem. These technical contributions provide robust evaluation infrastructure for complex agentic workflows utilized by developers across the global technology industry. Operating with a fully remote capability alongside its primary California headquarters, Vibrant Labs was officially founded and launched in 2024.
Vibrant Labs has raised $2.5M across 1 funding round.
Vibrant Labs has raised $2.5M in total across 1 funding round.
Vibrant Labs has raised $2.5M in total across 1 funding round.
Vibrant Labs's investors include Heavybit, Hike Ventures, Pioneer, Y Combinator.
Vibrant Labs has raised $2.5M across 1 funding round. Most recently, it raised $2.5M Pre-Seed in December 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Dec 3, 2025 | $2.5M Pre Seed | — | Heavybit, Hike Ventures, Pioneer, Y Combinator | Announced |