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Description

Pi is a streamlined terminal coding environment designed to seamlessly integrate with developer workflows rather than requiring developers to conform to its structure. It comes equipped with robust default settings while maintaining a compact size and extensive customization options, allowing users to enhance Pi through various extensions, skills, prompt templates, themes, and shareable packages sourced from npm or git. When a team requires a specific command, tool, provider, workflow, or UI modification, they can simply instruct Pi to create it, make adjustments on the fly, reload, and continue their work without interruption. Pi is versatile, offering support for interactive, print/JSON, RPC, and SDK modes, which enables it to function as a comprehensive terminal UI, a scriptable command interface, a JSON event stream, or an easily embeddable agent harness. It is compatible with over 15 providers and numerous models, including options like Anthropic, OpenAI, Google, Azure, Bedrock, Mistral, Groq, Cerebras, xAI, Hugging Face, Kimi For Coding, MiniMax, OpenRouter, Ollama, and other services, facilitating mid-session model switching to enhance flexibility and user experience. This adaptability makes Pi an invaluable tool for developers looking to tailor their coding environment to meet their specific needs.

Description

Reason functions as an independent software engineering and AI coding assistant, capable of managing genuine programming tasks, from exploring codebases and resolving issues to developing features and validating outcomes. It operates seamlessly across interconnected repositories, local systems, and cloud platforms, granting developers the ability to assign duties without disrupting their ongoing processes. The tool can navigate through codebases, track function calls, replicate errors, modify files, execute tests, and generate validated pull requests for human examination. Its research features deliver substantiated insights with references directly linked to specific source files and lines, while its repository memory ensures the retention of knowledge for subsequent sessions. Reason further enhances productivity by supporting concurrent subagents, creating isolated work environments, scheduling work periods, and automating workflows for both development and operational tasks. Teams are empowered to connect their repositories, oversee permissions, scrutinize code modifications, and assess builds, regression tests, and deployment validations prior to merging, ultimately streamlining the development pipeline. With its comprehensive suite of capabilities, Reason not only optimizes efficiency but also fosters a collaborative environment among developers.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Anthropic Yes 
Claude Yes 
Claude Fable 5.1 Yes 
Claude Opus 4.6 Yes 
Claude Opus 4.7 Yes 
Claude Opus 4.8 Yes 
GPT-5.5 Yes 
GPT-5.6 Sol Yes 
GPT-6 Astra Yes 
Google Cloud Platform Yes 
Graphify Yes 
Grok Yes 
Holo4 Yes 
Kimi K3 Yes 
Nativ Yes 
Ollama Yes 
OpenAI Bel Yes 
OpenRouter Yes 
Paperclip Yes 
Session Orchestrator Yes 

Integrations

Anthropic No 
Claude No 
Claude Fable 5.1 No 
Claude Opus 4.6 No 
Claude Opus 4.7 No 
Claude Opus 4.8 No 
GPT-5.5 No 
GPT-5.6 Sol No 
GPT-6 Astra No 
Google Cloud Platform No 
Graphify No 
Grok No 
Holo4 No 
Kimi K3 No 
Nativ No 
Ollama No 
OpenAI Bel No 
OpenRouter No 
Paperclip No 
Session Orchestrator No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac Yes 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Pi

Country

United States

Website

pi.dev/

Vendor Details

Company Name

Reason

Founded

2026

Country

United States

Website

reasonmachines.com

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