Source: https://seerepo.com/compare/Aider-AI/aider/vs/microsoft/promptflow
Markdown source: https://seerepo.com/compare/Aider-AI/aider/vs/microsoft/promptflow.md
Description: aider and promptflow share 16 technologies: pyarrow, AIOHTTP, FastAPI, starlette, Streamlit, SQLAlchemy, cryptography, nltk, OpenAI, tiktoken, filetype, jinja2, pillow, marshmallow, jsonschema, and psutil. Both are written in Python.

# aider vs promptflow

aider and promptflow share 16 technologies: pyarrow, AIOHTTP, FastAPI, starlette, Streamlit, SQLAlchemy, cryptography, nltk, OpenAI, tiktoken, filetype, jinja2, pillow, marshmallow, jsonschema, and psutil. Both are written in Python.

- [Aider-AI/aider](https://seerepo.com/r/Aider-AI/aider): aider is AI pair programming in your terminal
- [microsoft/promptflow](https://seerepo.com/r/microsoft/promptflow): Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring.

## What they share and what sets them apart

- In common: pyarrow, AIOHTTP, FastAPI, starlette, Streamlit, SQLAlchemy, cryptography, nltk, OpenAI, tiktoken, filetype, jinja2, pillow, marshmallow, jsonschema, psutil
- Only in aider: aiosqlite, gitdb, google-cloud-core, SQLite, diskcache, Mixpanel, PostHog, anyio, asgiref, tornado, cycler, fonttools, just-the-docs, soupsieve, altair, contourpy, matplotlib, pydeck, Rich, prompt-toolkit, Google, llama-index-instrumentation, llama-index-workflows, safetensors, scikit-learn, sentence-transformers, tokenizers, torch, transformers, litellm, llama-index-core, llama-index-embeddings-huggingface, imgcat, markdown-it-py, markupsafe, mdurl, tinytag, beautifulsoup4, pypandoc, annotated-types, jsonschema-specifications, Pydantic, referencing
- Only in promptflow: Flask, azure-cosmos, azure-search-documents, azure-storage-blob, flask-restx, flask-cors, uvicorn, azure-identity, pyjwt, keyring, azure-ai-ml, faiss-cpu, rouge-score, LangChain, pypdf2, bs4, strictyaml, azure-core, OpenTelemetry, waitress

## Side by side

| | aider | promptflow |
|---|---|---|
| Size | 41,407 lines written, 93 code files | 325,282 lines written, 526 code files |
| Who writes it | 89.5% of its commits signed by AI. With Aider, Gemini CLI, Codex, and Claude Code | 0.1% of its commits signed by AI. With GitHub Copilot |
| Activity | Last push May 22, 2026, 12,461 commits, 50,047 stars | Last push November 11, 2026, 2,289 commits, 11,266 stars |
| Tests | 57 test files. 36.6% of its code files have a test that imports them | 717 test files. 0.6% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, aider or promptflow?

promptflow, with 325,282 lines written; aider has 41,407.

The proof: [microsoft/promptflow's code at commit 33a68c9](https://github.com/microsoft/promptflow/tree/33a68c9d3cf349d7fdfad1f41969af27543c0406)

### Which has more GitHub stars, aider or promptflow?

aider, with 50,047 stars; promptflow has 11,266.

The proof: [Aider-AI/aider on GitHub](https://github.com/Aider-AI/aider)

### Which has more tests, aider or promptflow?

promptflow, with 717 test files; aider has 57.

The proof: [microsoft/promptflow's code at commit 33a68c9](https://github.com/microsoft/promptflow/tree/33a68c9d3cf349d7fdfad1f41969af27543c0406)

### Which was updated more recently, aider or promptflow?

promptflow: its last push was on November 11, 2026, and aider's on May 22, 2026.

The proof: [microsoft/promptflow's commits on GitHub](https://github.com/microsoft/promptflow/commits)

### Which has more commits signed by AI, aider or promptflow?

aider: an AI signed 89.5% of its commits, with Aider, Gemini CLI, Codex, and Claude Code; in promptflow, 0.1%.

The proof: [the commits each tool signed in Aider-AI/aider](https://seerepo.com/r/Aider-AI/aider/ai)

## Sources

- Aider-AI/aider: Read on November 10, 2026, at commit 5dc9490 (https://github.com/Aider-AI/aider/tree/5dc9490bb35f9729ef2c95d00a19ccd30c26339c)
- microsoft/promptflow: Read on November 12, 2026, at commit 33a68c9 (https://github.com/microsoft/promptflow/tree/33a68c9d3cf349d7fdfad1f41969af27543c0406)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.