What is Cosine?
Cosine AI is an advanced agentic AI software engineer designed to automate complex coding tasks within live production codebases. It empowers development teams to offload tickets, accelerate project delivery, and foster seamless asynchronous collaboration by mirroring human engineering workflows.
Key Features
Agentic End-to-End Task Execution: 🤖 Cosine operates autonomously, breaking down large, abstract work into structured subtasks and executing them without constant human supervision. This frees your engineers to focus on higher-level strategic initiatives rather than micromanaging code generation.
Seamless Workflow Integration: 🔗 Integrate Cosine directly into your existing development tools like Slack, Jira, Linear, and GitHub. This allows you to assign tasks and manage progress without disrupting your current environment or requiring context switching.
Deep Codebase Understanding: 🧠 Powered by our proprietary Genie 2.1 model, Cosine is specifically trained to navigate, understand, and work effectively within complex, real-world production codebases, ensuring accurate and contextually appropriate code changes.
Asynchronous Development & PR Delivery: 🚀 Assign multiple tickets concurrently and let Cosine work in the background, even when you're offline. It delivers production-ready pull requests—structured, documented, and thoroughly tested—minimizing review cycles and accelerating deployment.
Native Local Environment Access (CLI): 💻 Unlike sandboxed browser solutions, Cosine CLI runs directly in your local development environment, accessing your files, executing builds, running tests, and interacting with project-specific tools. This makes Cosine a true extension of your workflow, not just a disconnected assistant.
Use Cases
Feature Development Acceleration: Assign Cosine a new feature request from Jira or Slack; it will clarify requirements, break down the task, implement the code, and deliver a tested PR, significantly reducing time-to-market for new functionalities.
Backlog Elimination & Bug Resolution: Offload persistent bugs or long-standing backlog items to Cosine. It efficiently diagnoses issues, proposes fixes, and implements them, allowing your team to clear technical debt and improve software quality rapidly.
Code Refactoring & Maintenance: Utilize Cosine to refactor large sections of code, improve architectural patterns, or update dependencies. This ensures your codebase remains healthy and maintainable without diverting valuable human engineering hours from core development.
Why Choose Cosine AI?
Cosine stands apart by delivering genuine autonomous engineering capability, designed specifically for the demands of production environments:
Unmatched Performance on Real-World Benchmarks: Cosine, powered by its AutoPM feature and Genie 2.1 model, achieves a 72% pass rate on SWE-Lancer, a benchmark built for real-world software development tasks. This significantly outperforms leading AI models from OpenAI and Anthropic, demonstrating its superior capability for production-grade work.
True Agentic Autonomy: Unlike traditional AI copilots that require constant human guidance, Cosine operates as a self-sufficient AI engineer. It plans, executes, and iterates, delivering complete, production-ready pull requests without needing continuous human intervention, enabling true task offloading.
Native Integration, Zero Disruption: Cosine integrates deeply into your existing development tools and local environment via its CLI. This allows it to access your files, run builds, and execute tests seamlessly, becoming an integral part of your workflow rather than an external tool requiring context switches.
Built by Developers, for Developers: Developed with a profound understanding of engineering challenges, Cosine directly addresses the pain points of managing complex codebases and large backlogs, ensuring practical utility and genuine value for development teams.
Conclusion
Cosine AI redefines software development by providing an autonomous, intelligent teammate that accelerates your team's velocity and helps clear your backlog. Experience how true agentic AI can transform your engineering workflow and empower your team to ship faster. Learn more about Cosine AI and its impact on modern development.
More information on Cosine
Launched
2023-10
Pricing Model
Freemium
Starting Price
$20 Billed monthly
Global Rank
527048
Follow
Month Visit
61.5K
Tech used
Astro,Vercel,Gzip,Progressive Web App,HSTS,YouTube
Top 5 Countries
38.71%
20.89%
6.78%
6.63%
3.99%
Russia
United States
Brazil
United Kingdom
Vietnam
Traffic Sources
4.76%
0.63%
0.16%
17.78%
38.5%
38.17%
social
paidReferrals
mail
referrals
search
direct
Source: Similarweb (Sep 24, 2025)
Cosine was manually vetted by our editorial team and was first featured on 2023-10-16.
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