Plandex is an open-source, terminal-based AI coding agent designed to help developers build real-world software. It can handle large projects and files, offering features like diff review, configurable autonomy, and smart context management.

Is Plandex open source?

Yes, Plandex is proudly open source. Its code is available on GitHub, and it fosters a growing community of users and contributors.

What kind of projects can Plandex handle?

Plandex is specifically designed for large projects, large files, and complex tasks, making it suitable for building entire features and applications with a robust, dev-friendly workflow.

Does Plandex support different AI models?

Yes, Plandex is designed to be model-agnostic, allowing users to mix and combine models from various providers like Anthropic, OpenAI, and Google, avoiding vendor lock-in.

What happened to Plandex Cloud?

Plandex Cloud is winding down, with the company shifting its focus entirely to the open-source, self-hosted terminal-based AI coding agent.

Launching soon — get early access:

/

AI Agents

/

Plandex

Open Source(MIT)

Open source

Terminal-based

Best for developers

Large project support

Configurable autonomy

Build real-world software with AI, designed for large projects and complex tasks.

Autonomous

Coding

Anthropic

OPEN_SOURCE

ADVANCED Complexity

SELF_HOSTED

Last updated: May 27, 2026

plandex.ai

Quick Answer

Plandex is an open-source, terminal-based AI coding agent that helps developers build real-world software. It excels at handling large projects and files with smart context management, offering configurable autonomy and a diff review sandbox for robust, production-ready development workflows.

Decision Intelligence

Best For

Software developers working on large codebases

Engineers needing robust AI assistance for complex tasks

Teams building entire features and applications with AI

Users requiring granular control over AI agent actions

Developers seeking an open-source, self-hosted AI coding solution

Not Ideal For

Non-technical users or those uncomfortable with command-line interfaces

Individuals seeking a fully managed, cloud-hosted AI coding solution

Projects that require a visual development environment or IDE integration

Users who prefer a drag-and-drop or low-code/no-code approach to development

Fit Score

Complexity

ADVANCED

Company Size

SOLO

SMALL

MEDIUM

Team Size

INDIVIDUAL

SMALL_TEAM

Skill Level

INTERMEDIATE

EXPERT

About Plandex

Plandex is an open-source, terminal-based AI coding agent engineered to handle extensive software projects, large files, and multi-step tasks. It features a diff review sandbox, configurable autonomy from full auto to step-by-step control, and smart context management up to 2M tokens, enabling developers to achieve production-ready results with generative AI.

AI-extracted from public sources. May contain errors. Methodology · Are you Plandex? Claim listing

What Makes Plandex Unique

Plandex stands out with its terminal-based, open-source approach, offering a diff review sandbox and smart context management up to 2M tokens, making it ideal for large, complex coding projects.

Capabilities

Code generation

Debugging

Multi-step reasoning

Memory/context retention

File manipulation

Diff review

Task Categories

Coding

Automation

Software Development

Workflow Orchestration

Pros

+Open source and community-driven
+Designed for large-scale projects and files
+Offers flexible autonomy levels
+Supports multiple AI models to avoid vendor lock-in
+Includes a diff review sandbox for isolated changes
+Terminal-based workflow is familiar to developers

Limitations

-Requires command-line proficiency
-No graphical user interface (GUI) available
-Plandex Cloud service is winding down, focusing solely on self-hosted
-May have a learning curve for new users unfamiliar with AI agents
-Relies on external AI models, incurring their respective costs

Frequently Asked Questions

Your Actions

Dimension Scores

Ease of Use4/10

Output Quality7/10

Value for Money8/10

Customization4/10

Support6/10

Integration7/10

Task Scores

Context Understanding

9

Bug Detection

8

Code Completion

7

Code Explanation

7

Refactoring

7

Multi Language Support

7

Performance Optimization

7

Test Generation

6

Trust Score

28/100

Limited Data

Based on 5 data signals

Reflects publicly available data, not an independent audit

Company Strength15/25

Team Size1-10

Company ListedPlandex

Operational Trust8/20

Data ResidencyUser-determined

Open Source15.1K stars

Compliance5/15

GDPR (as claimed)Yes

Switching & Migration

Migration Difficulty

Easy to Switch

Community Forum + Docs

Open Source

Quick Stats

Agent TypeAutonomous

CategoryCoding

PlatformsCLI

Reviews0

LaunchedJan 2024

Setup TimeMinutes

Company & Links

Company Name

Plandex

Launched

January 2024

Documentation Changelog

Twitter/X Discord

YouTube

AI Agents

AI Agents

Plandex

Quick Answer

Decision Intelligence

Best For

Not Ideal For

Frequently Asked Questions

What is Plandex?

Is Plandex open source?

What kind of projects can Plandex handle?

Does Plandex support different AI models?

What happened to Plandex Cloud?

Dimension Scores

Task Scores

Trust Score

Switching & Migration