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IDES & CODING TOOLS • CURATED • UPDATED MAY 18, 2026

Cursor Composer 2.5

Cursor's agentic coding model for multi-file software engineering

Cursor Composer 2.5 is the agentic coding model inside the Cursor IDE, released on May 18, 2026. It extends Cursor's Composer feature with better long-context planning, improved multi-file editing, and stronger autonomous agent capabilities. It can reason across large codebases, propose architectural changes, and execute edits with user approval.

Pricing Paid
Platforms mac, windows, linux
API No
Open Source No
Modalities IDEs & Coding Tools, LLMs
Best For Best for IDE Autonomy
Date Added 2026-05-18
1 Provide high-level goals first, then refine with specific constraints
2 Use the codebase index to ground the model in your project's conventions
3 Accept changes file-by-file when working in sensitive areas
4 Run tests frequently to catch regressions early
5 Save successful Composer prompts as reusable snippets
Claude Opus 4.6 Google Antigravity 2.0 NotebookLM Cursor 2.0 OpenAI Codex

Implementing a Full Feature

Build a new user-facing feature across frontend, backend, and database layers.

STEPS:
  1. Open Composer and describe the feature end-to-end
  2. Let Composer propose the file changes and architecture
  3. Review the plan and approve each modification
  4. Run the test suite and fix any failures
  5. Refine UI and API details with follow-up prompts
  6. Commit the changes and open a pull request

Refactoring for Performance

Optimize a slow code path with cross-file changes.

STEPS:
  1. Highlight the slow function and ask Composer to optimize it
  2. Review the proposed algorithmic or caching changes
  3. Check impact on callers and dependent modules
  4. Run benchmarks before and after the change
  5. Merge once performance and tests pass
Paid

Requires a paid subscription.

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Q

Is Cursor Composer 2.5 free?

A

No, Cursor Composer 2.5 requires a paid subscription.

Q

Does Cursor Composer 2.5 have an API?

A

No, Cursor Composer 2.5 does not appear to offer a public API.

Q

What is Cursor Composer 2.5 best for?

A

Cursor Composer 2.5 is best for Best for IDE Autonomy.

Q

What platforms does Cursor Composer 2.5 support?

A

Cursor Composer 2.5 supports mac, windows, linux.

Q

Is Cursor Composer 2.5 open source?

A

No, Cursor Composer 2.5 is not open source.

Q

What can I do with Cursor Composer 2.5?

A

Cursor Composer 2.5 is designed for Multi-file feature implementation, Large codebase reasoning, Agentic IDE workflows. Cursor Composer 2. Key strengths include Deep integration into the Cursor editing experience and Improved long-context planning across files.

Q

How do I use Cursor Composer 2.5?

A

Cursor Composer 2.5 is a large language model for text generation, analysis, and conversation. Use through available interfaces. Enter prompts or questions to get responses. It excels at deep integration into the cursor editing experience.