Free
Free
Prompt flow SDK and documentation are open source with no paid license on the project site.
- Access
- Prompt flow SDK and documentation are open source with no paid license on the project site.
Finding the possibilities
Microsoft Promptflow
● Identity checkedCode · Vendor site 2026-10-04
Prompt flow is Microsoft open-source tooling for building, debugging, evaluating, and deploying LLM application workflows linking prompts, Python code, and tools. Microsoft announced feature development ended April 20, 2026 with full retirement April 20, 2027 and recommends migrating to Microsoft Agent Framework.
- Category
- Code
- Free access
- Prompt flow SDK and documentation are open source with no paid license on the project site.
- API access
- Reference documentation covers Python libraries, CLI commands, and tool integrations for flows.
Is Microsoft Promptflow right for you?
A good fit for
LLM application developers prototyping flows locally who can plan migration before the 2027 retirement date.
Before you choose
Prompt flow enters read-only mode on April 20, 2027; new feature development already ended in April 2026.
LLM flow tooling with retirement notice
Microsoft Prompt flow remains available as open-source LLM workflow tooling while Microsoft directs new work toward Agent Framework before the 2027 read-only retirement.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Flow development | Documentation describes creating executable workflows linking LLMs, prompts, Python, and tools. | Facts sourced | 2026-10-04 |
| Evaluation support | Site highlights evaluating flows with quality and performance metrics on larger datasets. | Facts sourced | 2026-10-04 |
| Retirement timeline | Homepage notice sets April 20, 2027 retirement and recommends Microsoft Agent Framework migration. | Facts sourced | 2026-10-04 |
Understand the total cost
Microsoft Promptflow pricing & plans
Alternatives to Microsoft Promptflow
View all ↗
BubbleBubble is a visual no-code platform for building web and mobile applications with databases, workflows, design tools, and AI-assisted development in a hosted workspace.
Explore tool
DevvDevv is an AI coding agent for indie builders and small teams to ship full-stack AI-powered products with native integrations. The platform advertises fast project generation, search, and Pro subscriptions with referral credits toward billing.
Explore tool
DraftbitDraftbit is a visual app builder for web, iOS, and Android that pairs AI agents with drag-and-drop editing, live preview, Supabase backends, and one-click publishing. Teams can import and export full source code, connect MCP integrations, and hire Draftbit experts for implementation help.
Explore toolThe practical questions
Frequently asked questions
What is Microsoft Promptflow used for?
Prompt flow is Microsoft open-source tooling for building, debugging, evaluating, and deploying LLM application workflows linking prompts, Python code, and tools. Microsoft announced feature development ended April 20, 2026 with full retirement April 20, 2027 and recommends migrating to Microsoft Agent Framework.
Does Microsoft Promptflow have a free plan?
Prompt flow SDK and documentation are open source with no paid license on the project site.. This record lists ongoing free access; check the plan limits before starting.
How much does Microsoft Promptflow cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Microsoft Promptflow through an API?
Reference documentation covers Python libraries, CLI commands, and tool integrations for flows.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Prompt flow enters read-only mode on April 20, 2027; new feature development already ended in April 2026.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.