LLM Application Development Frameworks
Alternatives to Vellum
Vellum brings file reading, calendar management, email, code execution, and computer control into a personal AI assistant. It remembers preferences in a workspace, supports user-created skills, and connects through OAuth to services including Google, GitHub, Notion, Outlook, and Todoist. Approval prompts and configurable trust rules can govern sensitive actions. Vellum is available on web, Windows, macOS, iOS, Android, extension, and self-hosted setups, with cloud environments offering private storage and continuous availability.
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Scanopy The maker presents Scanopy for homelabs, IT operations, MSPs, security and compliance teams, and platform and DevOps teams.
From $11.99/mo Free plan Open source Web · Windows · macOS · Linux8.7 Visit Specs - 02 Flowise
Flowise suits teams building agent or LLM workflows with visual tools, APIs, or self-hosted deployment.
From $35/mo Free plan Web · Windows · macOS · Linux8.4 Visit Specs - 03
LangChain It suits developers building configurable model-and-tool agents in Python or JavaScript/TypeScript.
From $39/mo Free plan API · Self-hosted8.3 Visit Specs - 04 OpenRAG
OpenRAG suits teams building document-grounded assistants, legal search, or multimodal enterprise question answering.
Free plan Web · API · Self-hosted8.3 Visit Specs - 05 txtai
It suits developers and teams building semantic search or language-model workflows who want local operation or self-managed deployment.
Free plan Windows · macOS · Linux · API8.3 Visit Specs - 06
Haystack Haystack is built for AI developers and engineers creating modular, transparent systems, including agent workflows, RAG and multimodal applications.
Free plan API · Self-hosted8.2 Visit Specs - 07 CrewAI AMP Free plan Web · API · Self-hosted8.0 Visit Specs
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LlamaIndex LlamaIndex suits developers and enterprises building document-processing, retrieval and knowledge-work workflows.
From $50/mo Web · Linux · API · Self-hosted7.7 Visit Specs - 09 DSPy API · Self-hosted7.6 Visit Specs
- 10 Langflow Web · Windows · macOS · Linux7.6 Visit Specs
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Vercel Vercel suits teams deploying web applications from connected Git repositories and using its listed frameworks and delivery infrastructure.
From $20/mo Free plan Web · API7.6 Visit Specs - 12 Pathway Live Data Framework
It suits teams building Python or SQL analytics, ETL, or AI pipelines that must combine batch and live data.
Free plan API · Self-hosted7.5 Visit Specs - 13 AgentScope Web · Windows · macOS · Linux6.3 Visit Specs
- 14 Apache Burr Windows · macOS · Linux6.2 Visit Specs
- 15 AutoGen Windows · macOS · Linux6.1 Visit Specs
- 16 AWS Strands Agents Windows · macOS · Linux6.1 Visit Specs
- 17 Genkit Web · Windows · macOS · Linux6.1 Visit Specs
- 18 Agno Web6.0 Visit Specs
- 19 BAML Web6.0 Visit Specs
- 20 Letta Web · Windows · macOS · Linux6.0 Visit Specs
- 21 AG2 5.9 Visit Specs
- 22 LangChain4j Windows · macOS · Linux5.9 Visit Specs
- 23 LMQL Web · Windows · macOS · Linux5.9 Visit Specs
- 24 CAMEL-AI 5.8 Visit Specs
- 25 Eino Linux5.8 Visit Specs
- 26 Guidance Linux5.8 Visit Specs
- 27 Langroid Windows · macOS · Linux5.8 Visit Specs
- 28 NVIDIA NeMo Guardrails Windows · macOS · Linux5.8 Visit Specs
- 29 Mastra Web5.7 Visit Specs
- 30 Microsoft GraphRAG Windows · macOS · Linux5.7 Visit Specs
Choosing instead of Vellum
Its free plan includes initial tasks with pay-as-you-go credits, while paid plans begin at $30 per month. Responses require an internet connection, Linux has no shipped desktop client, and the product is positioned for individuals rather than shared company work. An alternative may fit better if you need visual workflow design, team ownership, business-process orchestration, app building, embedded chat, or a different price and deployment model. Compare whether you need a personal assistant or a platform for agents, automation, collaboration, or customer-facing software.