Promptflow
Build high-quality LLM apps from prototyping to production.
Pricing
Free tier
Flat rate
Adoption
↗RisingLicense
Open Source
Data freshness
Verified · Jul 16, 2026Overview
What is Promptflow?
Promptflow is a tool for building and deploying large language model applications. It supports the entire lifecycle from initial prototyping through testing, deployment, and monitoring.
Key differentiator
“Promptflow offers a complete, open-source solution for building and deploying large language model applications, integrating seamlessly with Microsoft Azure.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Primary development and documentation focus is on Python, with minimal support for other languages
Optimized integrations and deployment options are heavily tied to Azure services
Fit analysis
Who is it for?
✓ Best for
Teams needing a comprehensive solution from prototyping to deployment of LLM apps
Projects that require integration with Microsoft Azure services
✕ Not a fit for
Developers preferring cloud-based managed solutions without self-hosting
Small projects where full lifecycle management is not required
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Next step
Get Started with Promptflow
Step-by-step setup guide with code examples and common gotchas.