An open-source LLM app platform with visual workflows, RAG, and agent tooling, available self-hosted or as a cloud service.
Full evaluationAlternatives guide · Updated Sep 23, 2026
Best Vellum
alternatives.
Start with why Vellum is not the fit: teams wanting a simple knowledge-base chatbot without external execution rights, or users uncomfortable managing credit balances and compute resources.. Then compare the closest options below by score, use case, and purchasing model.
Ranked options
6 products worth comparing
Recommendations prioritize category overlap and organic score. No product can pay for inclusion or position in this list.
An agent-building platform with a visual studio, hosted runtime, and an open-source lineage.
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A visual platform for designing, testing, and deploying AI agents for support and conversational products.
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A thoughtful AI collaborator for writing, analysis, coding, and long-form work.
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A broad multimodal assistant for research, creation, analysis, and agentic work.
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An answer engine built around current web research and visible citations.
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Switching from Vellum
Why look for a Vellum alternative?+
Vellum is not the fit when you are teams wanting a simple knowledge-base chatbot without external execution rights, or users uncomfortable managing credit balances and compute resources.. The options below share at least one of its workflow categories and are ranked by the same organic score.
What is the best Vellum alternative?+
Dify currently ranks highest among the alternatives (score 73.7). It is best for engineering and platform teams that want a self-hostable LLM app builder with retrieval and workflows. Check its dossier for limitations and current pricing.
Is there a free alternative to Vellum?+
Yes: Dify, Botpress, Voiceflow, Claude, ChatGPT, Perplexity offer a free plan or tier. Free tiers usually cap usage, models, or exports, so test the limit that matters to you.