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    Vellum AI

    Listed Apr 2026

    About Vellum AI

    Vellum AI is a developer platform for building, evaluating, and deploying LLM-powered applications, founded in 2023 and headquartered in San Francisco, California. Founded by Akash Sharma, Sidd Seethepalli, and Noa Flaherty, Vellum provides a complete development platform including the Prompt Engineering IDE for testing prompts across multiple LLMs, the Workflow Builder for visual AI agent orchestration, dataset management for evaluation, A/B testing with comparative model evaluation, deployment infrastructure with versioning and rollbacks, and observability for production AI applications. Vellum supports integration with all major LLM providers including OpenAI, Anthropic, Google, Mistral, and Cohere, and serves customers including Drata, Notable, and Reibus building production AI applications.

    Structured data

    Type:SoftwareApplication
    Area:Global
    Hours:Mo-Su 00:00-23:59
    Knows about
    Vellum AISan Francisco CaliforniaAkash Sharma Sidd Seethepalli Noa Flaherty founders 2023Prompt IDE Workflow BuilderOpenAI Anthropic Google Mistral CohereDrata Notable Reibus customers