FlowiseAI vs Haystack: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for FlowiseAI and Haystack side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
FlowiseAI
Visually build, deploy, and scale AI agents and chatbots with an open-source, low-code platform.
Best for you if:
- • You want open source LLM builder
Haystack
The open-source AI framework for building and orchestrating production-ready RAG and agentic AI applications.
Best for you if:
- • You want open-source foundation provides transparency and community support
| At a Glance | FlowiseAI | Haystack |
|---|---|---|
Starts at | Free plan, paid from $35/mo, billed monthly Starter plan | Free plan |
Category | AI Agents No-Code | AI Agents Developer Tools |
Rating | 4.8/5 G2 4.8 6 reviews | 4.4/5 G2 4.4 11 reviews |
Free plan | Yes | Yes |
Watch out for | Self-hosted: you pay for your own compute (AWS/GCP/Azure), a small VPS runs $5-20/month but scales with usage | n/a |
Choose FlowiseAI or Haystack?
Choose FlowiseAI if
- You want open source LLM builder
- You want visual interface
Choose Haystack if
- You want open-source foundation provides transparency and community support
- You want highly customizable and modular, allowing full control over AI system composition
In-Depth Analysis
FlowiseAI
Visually build, deploy, and scale AI agents and chatbots with an open-source, low-code platform.
FlowiseAI is open-source and free to self-host with no limits, the cloud pricing is just for managed hosting.
Watch out
Self-hosted: you pay for your own compute (AWS/GCP/Azure), a small VPS runs $5-20/month but scales with usage
Strengths
- Pro: Open source LLM builder
- Pro: Visual interface
- Pro: LangChain based
- Pro: Self-hostable
- Pro: Active community
Weaknesses
- Con: Learning curve
- Con: Documentation improving
- Con: Performance varies
- Con: Newer platform
- Con: Limited support
Key features
Haystack
The open-source AI framework for building and orchestrating production-ready RAG and agentic AI applications.
Haystack offers a very generous free tier, providing a powerful open-source AI framework at no cost.
Strengths
- Pro: Open-source foundation provides transparency and community support.
- Pro: Highly customizable and modular, allowing full control over AI system composition.
- Pro: Designed for production-readiness and enterprise-scale deployment.
- Pro: Extensive integrations prevent vendor lock-in and offer flexibility.
- Pro: Supports complex AI use cases like advanced RAG, agentic workflows, and multimodal AI.
Weaknesses
- Con: Requires Python development skills.
- Con: Enterprise-grade support and advanced tooling are part of paid offerings.
Key features
Plans and prices: FlowiseAI vs Haystack
| Tool | Plans and prices | Source |
|---|---|---|
| FlowiseAI |
| flowiseai.com/pricing read Oct 7, 2026 |
| Haystack |
| haystack.deepset.ai read Oct 1, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on FlowiseAI pricing and Haystack pricing.
Key Takeaways
FlowiseAI
- Choose if you want visually build, deploy, and scale AI agents and chatbots with an open-source, low-code platform
Haystack
- Choose if you want the open-source AI framework for building and orchestrating production-ready RAG and agentic AI applications
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings rest on too few reviews to rank (4.8/5 from 6 reviews for FlowiseAI, 4.4/5 from 11 reviews for Haystack; we compare ratings only above 20 reviews on both sides).
- FlowiseAI starts at $35/mo, billed monthly; Haystack has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do FlowiseAI and Haystack compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings rest on too few reviews to rank (4.8/5 from 6 reviews for FlowiseAI, 4.4/5 from 11 reviews for Haystack; we compare ratings only above 20 reviews on both sides). FlowiseAI starts at $35/mo, billed monthly; Haystack has no public paid plan price on file. Both have a free plan.
What are FlowiseAI and Haystack used for?
FlowiseAI: Visually build, deploy, and scale AI agents and chatbots with an open-source, low-code platform. Haystack: The open-source AI framework for building and orchestrating production-ready RAG and agentic AI applications.
What does FlowiseAI cost vs Haystack?
FlowiseAI's cheapest paid plan is Starter at $35/mo, billed monthly; it also has a free plan. Haystack has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 7, 2026.
What's the main difference between FlowiseAI and Haystack?
FlowiseAI's main strength: open source LLM builder. Haystack's main strength: open-source foundation provides transparency and community support.