Haystack
agent-frameworks
deepset's composable open-source framework for RAG and agent pipelines.
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Haystack vs Semantic Kernel
Compare Haystack and Semantic Kernel side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Semantic Kernel
agent-frameworks
Microsoft's enterprise SDK for orchestrating LLMs, plugins, and agents.
Pricing
Free
Rating
—
Votes
0
Feature comparison
Feature
Haystack
Semantic Kernel
Category
agent-frameworks
agent-frameworks
Pricing
Free plan
Free
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Haystack pros and cons
Composable, typed pipeline model is clear and flexible
Apache-2.0 core, free to self-host with no lock-in
Strong retrieval and search heritage
Broad integrations with model and vector stores
Engineering framework, not a turnkey app
Managed deepset pricing is largely quote-based
2.x rewrite means older 1.x tutorials are outdated
Semantic Kernel pros and cons
First-class C#/.NET support, rare among AI frameworks
Free and open source
Enterprise features: type safety, DI, telemetry
Multi-language (C#, Python, Java)
Strategic focus shifting to Microsoft Agent Framework
Concepts like planners have changed across versions
Python support historically trailed .NET
Which one should you choose?
Best overall signal
Semantic Kernel
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Haystack
Selected using free-plan availability and engagement signals.
Best for
Haystack
- production RAG pipelines
- enterprise search
- document question answering
- composable AI systems
- Teams building production RAG and search
Semantic Kernel
- enterprise .NET AI apps
- plugin and tool orchestration
- LLM integration in existing systems
- agent building on Microsoft stacks
- Enterprise .NET development teams
FAQ
Is Haystack better than Semantic Kernel?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Haystack and Semantic Kernel offer a free plan based on current Toolglade data.
Where can I find alternatives?
View Haystack alternatives or view Semantic Kernel alternatives.