Cursor Launches a New AI Agent Experience to Take On Claude Code and Codex

Cursor has officially launched Cursor 3, a new 'agent-first' AI coding interface developed under the internal codename 'Glass'. This represents a strategic pivot for the company, which pioneered AI-assisted coding in an IDE but now finds itself competing directly with AI labs like Anthropic and OpenAI. The new interface features a central chatbot-like text box where developers can describe a task in natural language. Upon hitting enter, an AI agent sets to work autonomously, requiring no manual coding from the user. A sidebar allows management of multiple running agents simultaneously.

Cursor 3's key differentiator is its integration of this agentic workflow with Cursor's existing, powerful AI-powered development environment. In demos, engineers showed how a user can prompt a cloud-based agent to build a feature, then seamlessly review and work with the generated code locally on their machine. The company is betting that developers want a unified platform, not separate tools. This launch comes as Cursor faces intense pressure from Claude Code and Codex, whose parent companies offer heavily subsidized subscriptions—reportedly providing over $1000 in usage for a $200 monthly fee—leading many developers to switch.

The competitive landscape is forcing Cursor into its most capital-intensive chapter yet, as it reportedly seeks fresh funding at a staggering $50 billion valuation. While the startup maintains its agile, fast-shipping culture, it must now prove that its integrated agent-and-IDE approach can win back developers who are increasingly drawn to the raw power and affordability of the AI labs' standalone agent products.