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What is Cosine?

Cosine is a cloud-based AI software development platform that transforms how engineering teams plan, build, review, and deploy software. Its autonomous agent infrastructure allows developers to assign coding tasks, monitor progress, review generated code changes, and approve deployments from a centralized environment. The platform supports parallel agent execution, enabling multiple coding tasks to be completed simultaneously while avoiding merge conflicts and preserving project context. Designed for modern software organizations, Cosine integrates cloud execution, local development environments, and enterprise-grade security controls to help teams increase productivity, reduce manual effort, and deliver software faster across complex and large-scale codebases.

What is Charlie?

Charlie Labs introduces Charlie, an AI-powered engineering assistant that accelerates the software development process for teams by automating a range of tasks, including coding, reviewing pull requests, fixing bugs, and implementing new features, all while integrating smoothly into existing workflows. This cutting-edge tool seamlessly connects with well-known developer platforms such as GitHub, Slack, Linear, Sentry, and Vercel, operating within daily routines to monitor activities like pull requests and team mentions, while automatically generating high-quality TypeScript code, managing branches, and creating pull requests with organized commits and passing tests. By effectively pinpointing bugs, providing actionable inline feedback, and generating feature code based on issue descriptions, Charlie allows engineers to focus on strategic planning and design instead of tedious implementation tasks. In addition, the assistant can interpret natural language requests made in team communication channels, further streamlining the development process. As a result, Charlie not only boosts productivity but also enables teams to innovate and produce superior software more rapidly. Ultimately, this transformative tool redefines how engineering teams collaborate and evolve in their software development journey.

Media

Media

Integrations Supported

GitHub
C++
Java
Visual Studio Code

Integrations Supported

GitHub
Claude Haiku 5.5
Claude Mythos 5
Claude Opus 4.6
Claude Opus 5
Claude Sonnet 4.5
GPT-5.2
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.4 mini
GPT-5.5
GPT-5.6 Terra
Gemini 3 Pro
Gemini 3.1 Pro
Linear
TypeScript
Vercel

API Availability

API Availability

Pricing Information

$20/month
Free Version

Pricing Information

$500 per month
Free Trial Offered?

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Cosine

Date Founded

2022

Company Location

United Kingdom

Company Website

cosine.sh/

Company Facts

Organization Name

Charlie Labs

Company Location

United States

Company Website

www.charlielabs.ai/

Categories and Features

Agentic AI

Not specified

AI Code Generators

Not specified

AI Code Refactoring

Not specified

AI Code Review

Not specified

AI Coding Agents

Not specified

AI Coding Assistants

Not specified

AI Copilots

Not specified

Code Review

Not specified

Categories and Features

Agentic AI

Not specified

AI Code Generators

Not specified

AI Coding Agents

Not specified

AI Coding Assistants

Not specified

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