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Langflow

by Langflow (IBM/DataStax)

Low-code visual builder for agentic and RAG applications

Pros

  • Free and open source ('forever open, free, agnostic')
  • Strong RAG + agent tooling
  • IBM backing
  • Flexible self-hosting

Cons

  • DataStax-hosted cloud sunset April 2026 (self-host or alt cloud)
  • Real costs from infra/LLM usage
  • Managed options in transition

✓ Where it shines / best for

  • RAG and agent app builders
  • Self-hosting teams
  • Visual prototyping of LLM flows

✕ Not the best fit for

  • Those needing a turnkey first-party cloud now
  • No-infra no-code business users
  • Fixed-SaaS-pricing seekers

Features

  • ✓ Visual low-code agent/RAG builder
  • ✓ Open source, free for commercial use
  • ✓ Component-based flow design
  • ✓ IBM watsonx integration roadmap
  • ✓ Self-host or partner-managed hosting
  • ✓ Broad model/tool integrations

Pricing

PlanPriceBillingNotes
Open Source$0Free, commercial use OK; pay only infra + LLM API
Cloud/Managedfrom ~$25/moPartner-managed tiers (DataStax-hosted service shut down Apr 9, 2026)
EnterpriseCustomIBM Elite Support / watsonx; dedicated infra

Pricing verified from the official source. Prices change often — confirm on the vendor's site before buying.

Specifications

ownerIBM (via DataStax)
licenseOpen source
datastax_cloudShut down Apr 9, 2026
Sponsored

A full review is being generated for this product and will appear here shortly.

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