![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/) 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 loveβ€”([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 Agentsβ€”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/). To learn the motivation, read the [story](https://zacharyhuang.substack.com/p/i-built-an-llm-framework-in-just). - πŸŽ‰ Join our [discord](https://discord.gg/hUHHE9Sa6T)! - πŸŽ‰ Thanks to [@zvictor](https://www.github.com/zvictor), [@jackylee941130](https://www.github.com/jackylee941130) and [@ZebraRoy](https://www.github.com/ZebraRoy), we now have a [TypeScript version](https://github.com/The-Pocket/PocketFlow-Typescript)! ## 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](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) | β˜†β˜†β˜†
*Dummy* | A basic chat bot with conversation history | | [Structured Output](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-structured-output) | β˜†β˜†β˜†
*Dummy* | Extracting structured data from resumes by prompting | | [Workflow](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-workflow) | β˜†β˜†β˜†
*Dummy* | A writing workflow that outlines, writes content, and applies styling | | [Agent](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-agent) | β˜†β˜†β˜†
*Dummy* | A research agent that can search the web and answer questions | | [RAG](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-rag) | β˜†β˜†β˜†
*Dummy* | A simple Retrieval-augmented Generation process | | [Map-Reduce](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-map-reduce) | β˜†β˜†β˜†
*Dummy* | A resume qualification processor using map-reduce pattern for batch evaluation | | [Streaming](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-llm-streaming) | β˜†β˜†β˜†
*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) | β˜†β˜†β˜†
*Dummy* | A travel advisor chatbot that only processes travel-related queries | | [Multi-Agent](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-multi-agent) | β˜…β˜†β˜†
*Beginner* | A Taboo word game for asynchronous communication between two agents | | [Supervisor](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-supervisor) | β˜…β˜†β˜†
*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) | β˜…β˜†β˜†
*Beginner* | A parallel execution demo that shows 3x speedup | | [Parallel Flow](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-parallel-batch-flow) | β˜…β˜†β˜†
*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) | β˜…β˜†β˜†
*Beginner* | Improve reasoning accuracy by aggregating multiple solution attempts | | [Thinking](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-thinking) | β˜…β˜†β˜†
*Beginner* | Solve complex reasoning problems through Chain-of-Thought | | [Memory](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-chat-memory) | β˜…β˜†β˜†
*Beginner* | A chat bot with short-term and long-term memory | | [MCP](https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/pocketflow-mcp) | β˜…β˜†β˜†
*Beginner* | Agent using Model Context Protocol for numerical operations |
πŸ‘€ Want to see other tutorials for dummies? [Create an issue!](https://github.com/The-Pocket/PocketFlow/issues/new) ## How to Use Pocket Flow? πŸš€ Through **Agentic Coding**β€”the fastest LLM App development paradigm-where *humans design* and *agents code*!
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✨ 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 ... | β˜…β˜…β˜…
*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) | [Ask AI Paul Graham](https://github.com/The-Pocket/Tutorial-YC-Partner)
Ask AI Paul Graham, in case you don't get in | β˜…β˜…β˜†
*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 | β˜…β˜†β˜†
*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 | β˜…β˜†β˜†
*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**? - To setup, read this [post](https://zacharyhuang.substack.com/p/agentic-coding-the-most-fun-way-to)! - 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)!