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What is Fei?

Fei acts as an AI-driven engineering assistant that effortlessly integrates into your existing codebase, utilizing current components and adhering to your design system and coding standards to generate backend code that often passes reviews on the first try. It can handle a variety of inputs, such as Figma designs, Jira tickets, screenshots, and plain text, swiftly transforming them into production-ready code within minutes, which significantly accelerates development timelines without compromising on quality or security. Rather than functioning solely as a coding tool, Fei operates as a fully-fledged team member, enabling teams to scale their productivity without the need for additional hires, and ensuring that the generated code aligns with existing infrastructure and practices. This sophisticated contextual awareness and integration empower teams to create genuine products instead of mere prototypes, fostering trust in their efficiency and dependability. Consequently, organizations can consistently achieve high-quality outcomes while optimizing their workflows and enhancing overall productivity, which ultimately leads to a more robust and innovative development environment. Moreover, by embracing Fei, teams can focus more on creative problem-solving and strategic initiatives, as routine coding tasks are handled with remarkable speed and precision.

What is Devin?

Devin serves as a cutting-edge AI software development assistant designed to collaborate with engineering teams, aiming to streamline and improve the coding workflow. It plays a vital role in a variety of tasks, including repository creation, coding, debugging, and migrations, and can operate autonomously or alongside human developers. Over time, Devin enhances its performance by learning from the examples it encounters. The adoption of Devin has led to significant savings in both time and costs on large-scale projects, as demonstrated by its deployment at Nubank, where it accelerated migration processes by 8 to 12 times and reduced expenses by over 20 times. Furthermore, Devin is proficient in code refactoring and automating mundane engineering tasks, making it an essential resource for developers seeking to enhance their productivity. Its capacity for continuous learning and adaptation guarantees that it remains a crucial component in the rapidly changing world of software development, driving innovation and efficiency. As the industry evolves, tools like Devin will likely set new standards for collaboration and performance in the tech sector.

Media

Media

Integrations Supported

C
COBOL
CSS
Claude Opus 4.7
Claude Sonnet 4.6
Fortran
GPT-5.1
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.4 mini
GPT‑5.4 Thinking
GitHub
Next.js
OpenClaw
PHP
Perl
R
React Native
Subspace
Swift

Integrations Supported

C
COBOL
CSS
Claude Opus 4.7
Claude Sonnet 4.6
Fortran
GPT-5.1
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.4 mini
GPT‑5.4 Thinking
GitHub
Next.js
OpenClaw
PHP
Perl
R
React Native
Subspace
Swift

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

$20/month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Autonomy AI

Date Founded

2023

Company Location

United States

Company Website

autonomyai.io/fei/

Company Facts

Organization Name

Cognition AI

Date Founded

2023

Company Location

United States

Company Website

devin.ai/

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