Botpress vs Flowise
Updated March 10, 2026
Overview
Botpress is an open-source platform for building AI-powered chatbots and agents. It provides a visual flow builder, built-in NLU, knowledge bases, and multi-channel deployment (web, WhatsApp, Slack, etc.). Botpress uses LLMs for natural conversation handling while maintaining structured workflows, making it suitable for both simple FAQ bots and complex enterprise automation.
Flowise is an open-source drag-and-drop UI for building LLM flows and AI agents. Built on top of LangChain, it lets users visually connect LLMs, prompts, tools, memory, and vector stores into working applications without writing code. Flowise can be self-hosted and is popular with teams that want the power of LangChain with a visual interface.
Key features
Core capabilities each platform advertises.
- Open-source chatbot platform
- Visual flow builder
- Multiple LLM support
- Self-hosted option
- Plugin and integration ecosystem
- Open-source visual LLM workflow builder
- Drag-and-drop node interface
- LangChain integration
- Custom components
- Self-hosted deployment
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Generous free tier for getting started
- Comprehensive feature set across tiers
- Multi-channel deployment support
- Strong enterprise capabilities
Cons
- Unpredictable costs due to AI Spend charges
- Token-based billing makes budgeting difficult
- Longer conversations significantly increase costs
- Subscription is just starting point for total cost
Pros
- Low-code
- Open-source
Cons
- Limited control
Botpress or Flowise — which should you choose?
Choose Botpress if you wantChoose if you want
- Self-hosted AI chatbots
- Customer service automation
- Lead generation bots
- Internal knowledge assistants
- Multi-language chatbot deployment
Choose Flowise if you wantChoose if you want
- Visual RAG pipeline building
- LLM workflow prototyping
- Custom AI tool creation
- AI application experimentation
- No-code LLM chain building
Compare Botpress and Flowise on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.