pocketflow/README.md

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<div align="center">
<img src="./assets/title.png" width="600"/>
</div>
![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)
[![Docs](https://img.shields.io/badge/docs-latest-blue)](https://the-pocket.github.io/PocketFlow/)
<a href="https://discord.gg/hUHHE9Sa6T">
<img src="https://img.shields.io/discord/1346833819172601907?logo=discord&style=flat">
</a>
Pocket Flow is a [100-line](pocketflow/__init__.py) minimalist LLM framework
- **Lightweight**: Just 100 lines. Zero bloat, zero dependencies, zero vendor lock-in.
- **Expressive**: Everything you love—([Multi-](https://the-pocket.github.io/PocketFlow/design_pattern/multi_agent.html))[Agents](https://the-pocket.github.io/PocketFlow/design_pattern/agent.html), [Workflow](https://the-pocket.github.io/PocketFlow/design_pattern/workflow.html), [RAG](https://the-pocket.github.io/PocketFlow/design_pattern/rag.html), and more.
- **Agentic Coding**: Let AI Agents (e.g., Cursor AI) build Agents—10x productivity boost!
- To install, ```pip install pocketflow```or just copy the [source code](pocketflow/__init__.py) (only 100 lines).
- To learn more, check out the [documentation](https://the-pocket.github.io/PocketFlow/). For an in-depth design dive, read the [essay](https://github.com/The-Pocket/.github/blob/main/profile/pocketflow.md).
- 🎉 We now have a [discord](https://discord.gg/hUHHE9Sa6T)!
## Why Pocket Flow?
Current LLM frameworks are bloated... You only need 100 lines for LLM Framework!
<div align="center">
<img src="./assets/meme.jpg" width="400"/>
| | **Abstraction** | **App-Specific Wrappers** | **Vendor-Specific Wrappers** | **Lines** | **Size** |
|----------------|:-----------------------------: |:-----------------------------------------------------------:|:------------------------------------------------------------:|:---------------:|:----------------------------:|
| LangChain | Agent, Chain | Many <br><sup><sub>(e.g., QA, Summarization)</sub></sup> | Many <br><sup><sub>(e.g., OpenAI, Pinecone, etc.)</sub></sup> | 405K | +166MB |
| CrewAI | Agent, Chain | Many <br><sup><sub>(e.g., FileReadTool, SerperDevTool)</sub></sup> | Many <br><sup><sub>(e.g., OpenAI, Anthropic, Pinecone, etc.)</sub></sup> | 18K | +173MB |
| SmolAgent | Agent | Some <br><sup><sub>(e.g., CodeAgent, VisitWebTool)</sub></sup> | Some <br><sup><sub>(e.g., DuckDuckGo, Hugging Face, etc.)</sub></sup> | 8K | +198MB |
| LangGraph | Agent, Graph | Some <br><sup><sub>(e.g., Semantic Search)</sub></sup> | Some <br><sup><sub>(e.g., PostgresStore, SqliteSaver, etc.) </sub></sup> | 37K | +51MB |
| AutoGen | Agent | Some <br><sup><sub>(e.g., Tool Agent, Chat Agent)</sub></sup> | Many <sup><sub>[Optional]<br> (e.g., OpenAI, Pinecone, etc.)</sub></sup> | 7K <br><sup><sub>(core-only)</sub></sup> | +26MB <br><sup><sub>(core-only)</sub></sup> |
| **PocketFlow** | **Graph** | **None** | **None** | **100** | **+56KB** |
</div>
**Pocket Flow** is also a educational resource for understanding LLM frameworks:
- Larger frameworks are overly abstract and hide away details.
- **Pocket Flow** shows exactly how everything works under the hood.
## How to Use Pocket Flow?
🚀 Through **Agent Coding**—the fastest LLM App development paradigm-where humans design and agents code!
<br>
<div align="center">
<a href="https://youtu.be/Cf38Bi8U0Js" target="_blank">
<img src="./assets/tutorial.png" width="500" alt="IMAGE ALT TEXT" style="cursor: pointer;">
</a>
</div>
<br>
✨ Below are examples of LLM Apps:
<div align="center">
| App Name | Difficulty | Topics | Human Design | Agent Code |
| :-------------: | :-------------: | :---------------------: | :---: | :---: |
| [Ask AI Paul Graham](https://github.com/The-Pocket/Tutorial-YC-Partner) <br> <sup><sub>Ask AI Paul Graham, in case you don't get in</sup></sub> | ★★☆ <br> *Medium* | [RAG](https://the-pocket.github.io/PocketFlow/design_pattern/rag.html) <br> [Map Reduce](https://the-pocket.github.io/PocketFlow/design_pattern/mapreduce.html) <br> [TTS](https://the-pocket.github.io/PocketFlow/utility_function/text_to_speech.html) | [Design Doc](https://github.com/The-Pocket/Tutorial-AI-Paul-Graham/blob/main/docs/design.md) | [Flow Code](https://github.com/The-Pocket/Tutorial-AI-Paul-Graham/blob/main/flow.py)
| [Youtube Summarizer](https://github.com/The-Pocket/Tutorial-Youtube-Made-Simple) <br> <sup><sub> Explain YouTube Videos to you like you're 5 </sup></sub> | ★☆☆ <br> *Beginner* | [Map Reduce](https://the-pocket.github.io/PocketFlow/design_pattern/mapreduce.html) | [Design Doc](https://github.com/The-Pocket/Tutorial-Youtube-Made-Simple/blob/main/docs/design.md) | [Flow Code](https://github.com/The-Pocket/Tutorial-Youtube-Made-Simple/blob/main/flow.py)
| [Cold Opener Generator](https://github.com/The-Pocket/Tutorial-Cold-Email-Personalization) <br> <sup><sub> Instant icebreakers that turn cold leads hot </sup></sub> | ★☆☆ <br> *Beginner* | [Map Reduce](https://the-pocket.github.io/PocketFlow/design_pattern/mapreduce.html) <br> [Web Search](https://the-pocket.github.io/PocketFlow/utility_function/websearch.html) | [Design Doc](https://github.com/The-Pocket/Tutorial-Cold-Email-Personalization/blob/master/docs/design.md) | [Flow Code](https://github.com/The-Pocket/Tutorial-Cold-Email-Personalization/blob/master/flow.py)
</div>
- Want to learn **Agent Coding**? Check out [my YouTube](https://www.youtube.com/@ZacharyLLM?sub_confirmation=1)! Read this [Guide](https://the-pocket.github.io/PocketFlow/guide.html)!
- Want to build your own LLM App? Start with [this template](https://github.com/The-Pocket/PocketFlow-Template-Python)!
## How does Pocket Flow work?
The [100 lines](pocketflow/__init__.py) capture the core abstraction of LLM frameworks: Graph!
<div align="center">
<img src="./assets/abstraction.png" width="500"/>
</div>
From there, its easy to implement popular design patterns like ([Multi-](https://the-pocket.github.io/PocketFlow/design_pattern/multi_agent.html))[Agents](https://the-pocket.github.io/PocketFlow/design_pattern/agent.html), [Workflow](https://the-pocket.github.io/PocketFlow/design_pattern/workflow.html), [RAG](https://the-pocket.github.io/PocketFlow/design_pattern/rag.html), etc.
<div align="center">
<img src="./assets/design.png" width="500"/>
</div>