English | [中文](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_CHINESE.md) | [Español](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_SPANISH.md) | [日本語](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_JAPANESE.md) | [Deutsch](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_GERMAN.md) | [Русский](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_RUSSIAN.md) | [Português](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_PORTUGUESE.md) | [Français](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_FRENCH.md) | [한국어](https://github.com/The-Pocket/PocketFlow/blob/main/cookbook/pocketflow-batch/translations/README_KOREAN.md)
[](https://the-pocket.github.io/PocketFlow/)
Pocket Flow is a [100-line](https://github.com/The-Pocket/PocketFlow/blob/main/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](https://zacharyhuang.substack.com/p/agentic-coding-the-most-fun-way-to)**: Let AI Agents (e.g., Cursor AI) build Agents—10x productivity boost!
Get started with Pocket Flow:
- To install, ```pip install pocketflow```or just copy the [source code](https://github.com/The-Pocket/PocketFlow/blob/main/pocketflow/__init__.py) (only 100 lines).
- To learn more, check out the [documentation](https://the-pocket.github.io/PocketFlow/). To learn the motivation, read the [story](https://zacharyhuang.substack.com/p/i-built-an-llm-framework-in-just).
- Have questions? Check out this [AI Assistant](https://chatgpt.com/g/g-677464af36588191b9eba4901946557b-pocket-flow-assistant), or [create an issue!](https://github.com/The-Pocket/PocketFlow/issues/new)
- 🎉 Join our [Discord](https://discord.gg/hUHHE9Sa6T) to connect with other developers building with Pocket Flow!
- 🎉 Pocket Flow is initially Python, but we now have [Typescript](https://github.com/The-Pocket/PocketFlow-Typescript), [Java](https://github.com/The-Pocket/PocketFlow-Java), [C++](https://github.com/The-Pocket/PocketFlow-CPP) and [Go](https://github.com/The-Pocket/PocketFlow-Go) versions!
## Why Pocket Flow?
Current LLM frameworks are bloated... You only need 100 lines for LLM Framework!
| | **Abstraction** | **App-Specific Wrappers** | **Vendor-Specific Wrappers** | **Lines** | **Size** |
|----------------|:-----------------------------: |:-----------------------------------------------------------:|:------------------------------------------------------------:|:---------------:|:----------------------------:|
| LangChain | Agent, Chain | Many
(e.g., QA, Summarization) | Many
(e.g., OpenAI, Pinecone, etc.) | 405K | +166MB |
| CrewAI | Agent, Chain | Many
(e.g., FileReadTool, SerperDevTool) | Many
(e.g., OpenAI, Anthropic, Pinecone, etc.) | 18K | +173MB |
| SmolAgent | Agent | Some
(e.g., CodeAgent, VisitWebTool) | Some
(e.g., DuckDuckGo, Hugging Face, etc.) | 8K | +198MB |
| LangGraph | Agent, Graph | Some
(e.g., Semantic Search) | Some
(e.g., PostgresStore, SqliteSaver, etc.) | 37K | +51MB |
| AutoGen | Agent | Some
(e.g., Tool Agent, Chat Agent) | Many
[Optional]
(e.g., OpenAI, Pinecone, etc.) | 7K
(core-only) | +26MB
(core-only) |
| **PocketFlow** | **Graph** | **None** | **None** | **100** | **+56KB** |
## How does Pocket Flow work?
The [100 lines](https://github.com/The-Pocket/PocketFlow/blob/main/pocketflow/__init__.py) capture the core abstraction of LLM frameworks: Graph!
From there, it's 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.
✨ Below are basic tutorials:
| Name | Difficulty | Description |
| :-------------: | :-------------: | :--------------------- |
| [Chat](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-chat) | ☆☆☆
*Dummy* | A basic chat bot with conversation history |
| [Structured Output](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-structured-output) | ☆☆☆
*Dummy* | Extracting structured data from resumes by prompting |
| [Workflow](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-workflow) | ☆☆☆
*Dummy* | A writing workflow that outlines, writes content, and applies styling |
| [Agent](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-agent) | ☆☆☆
*Dummy* | A research agent that can search the web and answer questions |
| [RAG](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-rag) | ☆☆☆
*Dummy* | A simple Retrieval-augmented Generation process |
| [Batch](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-batch) | ☆☆☆
*Dummy* | A batch processor that translates markdown content into multiple languages |
| [Streaming](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-llm-streaming) | ☆☆☆
*Dummy* | A real-time LLM streaming demo with user interrupt capability |
| [Chat Guardrail](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-chat-guardrail) | ☆☆☆
*Dummy* | A travel advisor chatbot that only processes travel-related queries |
| [Map-Reduce](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-map-reduce) | ★☆☆
*Beginner* | A resume qualification processor using map-reduce pattern for batch evaluation |
| [Multi-Agent](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-multi-agent) | ★☆☆
*Beginner* | A Taboo word game for asynchronous communication between two agents |
| [Supervisor](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-supervisor) | ★☆☆
*Beginner* | Research agent is getting unreliable... Let's build a supervision process|
| [Parallel](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-parallel-batch) | ★☆☆
*Beginner* | A parallel execution demo that shows 3x speedup |
| [Parallel Flow](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-parallel-batch-flow) | ★☆☆
*Beginner* | A parallel image processing demo showing 8x speedup with multiple filters |
| [Majority Vote](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-majority-vote) | ★☆☆
*Beginner* | Improve reasoning accuracy by aggregating multiple solution attempts |
| [Thinking](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-thinking) | ★☆☆
*Beginner* | Solve complex reasoning problems through Chain-of-Thought |
| [Memory](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-chat-memory) | ★☆☆
*Beginner* | A chat bot with short-term and long-term memory |
| [MCP](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-mcp) | ★☆☆
*Beginner* | Agent using Model Context Protocol for numerical operations |
| [A2A](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-a2a) | ★☆☆
*Beginner* | Agent wrapped with Agent-to-Agent protocol for inter-agent communication |
| [Web HITL](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-web-hitl) | ★☆☆
*Beginner* | A minimal web service for a human review loop with SSE updates |
👀 Want to see other tutorials for dummies? [Create an issue!](https://github.com/The-Pocket/PocketFlow/issues/new)
## How to Use Pocket Flow?
🚀 Through **Agentic Coding**—the fastest LLM App development paradigm-where *humans design* and *agents code*!
✨ Below are examples of more complex LLM Apps:
| App Name | Difficulty | Topics | Human Design | Agent Code |
| :-------------: | :-------------: | :---------------------: | :---: | :---: |
| [Build Cursor with Cursor](https://github.com/The-Pocket/Tutorial-Cursor)
We'll reach the singularity soon ... | ★★★
*Advanced* | [Agent](https://the-pocket.github.io/PocketFlow/design_pattern/agent.html) | [Design Doc](https://github.com/The-Pocket/Tutorial-Cursor/blob/main/docs/design.md) | [Flow Code](https://github.com/The-Pocket/Tutorial-Cursor/blob/main/flow.py)
| [Codebase Knowledge Builder](https://github.com/The-Pocket/Tutorial-Codebase-Knowledge)
Life's too short to stare at others' code in confusion | ★★☆
*Medium* | [Workflow](https://the-pocket.github.io/PocketFlow/design_pattern/workflow.html) | [Design Doc](https://github.com/The-Pocket/Tutorial-Codebase-Knowledge/blob/main/docs/design.md) | [Flow Code](https://github.com/The-Pocket/Tutorial-Codebase-Knowledge/blob/main/flow.py)
| [Ask AI Paul Graham](https://github.com/The-Pocket/Tutorial-YC-Partner)
Ask AI Paul Graham, in case you don't get in | ★★☆
*Medium* | [RAG](https://the-pocket.github.io/PocketFlow/design_pattern/rag.html)
[Map Reduce](https://the-pocket.github.io/PocketFlow/design_pattern/mapreduce.html)
[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)
Explain YouTube Videos to you like you're 5 | ★☆☆
*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)
Instant icebreakers that turn cold leads hot | ★☆☆
*Beginner* | [Map Reduce](https://the-pocket.github.io/PocketFlow/design_pattern/mapreduce.html)
[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)
- Want to learn **Agentic Coding**?
- Check out [my YouTube](https://www.youtube.com/@ZacharyLLM?sub_confirmation=1) for video tutorial on how some apps above are made!
- Want to build your own LLM App? Read this [post](https://zacharyhuang.substack.com/p/agentic-coding-the-most-fun-way-to)! Start with [this template](https://github.com/The-Pocket/PocketFlow-Template-Python)!