Prompt flow is a suite of development tools designed to streamline the end-to-end development cycle of LLM-based AI applications, from ideation, prototyping, testing, evaluation to production deployment and monitoring. It makes prompt engineering much easier and enables you to build LLM apps with production quality.
With prompt flow, you will be able to:
- Create and iteratively develop flow
- Create executable flows that link LLMs, prompts, Python code and other tools together.
- Debug and iterate your flows, especially the interaction with LLMs with ease.
- Evaluate flow quality and performance
- Evaluate your flow's quality and performance with larger datasets.
- Integrate the testing and evaluation into your CI/CD system to ensure quality of your flow.
Publisher’s description
What is Microsoft Promptflow?
Microsoft Promptflow by Microsoft Corporation is open-source Windows software in the ai assistants & llms category. It is written in Python.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 1.17.1, released on January 9, 2025. The version history goes back to March 25, 2024: 10 releases, all linked to the official files. The last update is more than a year old.
Popularity and file types
The source code on GitHub (microsoft/promptflow) has 11,255 stars. Similar programs include Codex CLI, Claude Code and ChatGPT.
Project description on GitHub: “Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Large user base
Cons
- No native ARM64 build
- No update for more than a year
- The official download link did not answer at the last check
In short: Microsoft Promptflow is an open-source ai assistants & llm tool for 64-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is Microsoft Promptflow safe to download?
- The file is served by promptflowartifact.blob.core.windows.net; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
08A2AC047C316BCF424A63897D999C4697A0FA76B2AB3328BAC2DBA245312991· Open the VirusTotal report for this hash - The link did not answer when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 10 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.17.1Latest | January 9, 2025 | — | 64-bit MSI |
| 1.16.2 | November 25, 2024 | — | 64-bit MSI |
| 1.16.0 | September 30, 2024 | — | 64-bit MSI |
| 1.14.0 | July 26, 2024 | — | 64-bit MSI |
| 1.11.0 | May 17, 2024 | — | 64-bit MSI |
| 1.10.1 | May 6, 2024 | — | 64-bit MSI |
| 1.10.0 | April 26, 2024 | — | 64-bit MSI |
| 1.9.0 | April 18, 2024 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id Microsoft.Promptflow -emsiexec /i promptflow-1.17.1.msi /qn /norestartmsiexec /x {4B2EDCB7-CD45-4E73-B494-2D7CB681414A} /qn /norestartProgram files (.exe): pf.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- Microsoft Corporation
- Category
- AI assistants & LLMs
- Licence
- MIT License
- Price
- Free
- Source code
- github.com/microsoft/promptflow
- Written in
- Python
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 1.17.1
- Released
- January 9, 2025
- Added to the catalogue
- April 8, 2024
- Versions listed
- 10
- GitHub stars
- 11,255
- GitHub forks
- 1,127
- Website
- learn.microsoft.com
- winget ID
- Microsoft.Promptflow
- MSI product code
- {4B2EDCB7-CD45-4E73-B494-2D7CB681414A}
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Microsoft Promptflow free?
Yes. Microsoft Promptflow is open-source software under the MIT License licence.
Is Microsoft Promptflow safe to download?
The download comes from promptflowartifact.blob.core.windows.net; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Microsoft Promptflow with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Microsoft Promptflow be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Microsoft Promptflow run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Microsoft Promptflow?
The versions page lists all 10 versions with links to their official installer files, back to March 25, 2024.
What are alternatives to Microsoft Promptflow?
Codex CLI, Claude Code, ChatGPT, GPT4All and Jan. The alternatives page compares them.
