Cursor
@cursor_ai
GPT-5.5 is now available in Cursor! It's currently the top model on CursorBench at 72.8%. We've partnered with OpenAI to offer it for 50% off through May 2.
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View on XCursor Adds GPT-5.5 and Leads Internal Benchmarks With 50 Percent Discount
Cursor· Updated
Cursor integrated OpenAI's GPT-5.5, which now leads its internal CursorBench evaluation with a 72.8% score. The update highlights a shift toward using real-world developer sessions rather than public benchmarks to measure frontier model performance on complex, multi-file coding tasks.
Cursor, an AI-native code editor, integrated OpenAI's newly released
GPT-5.5 model. It currently leads CursorBench-3, the company's internal evaluation suite, with a 72.8% correctness score. This follows the editor's previous integration of GPT-5.4 as its then-benchmark leader, marking a rapid adoption cycle for frontier models.- Model
- GPT-5.5
- CursorBench-3 Score
- 72.8%
- Discount
- 50% off
- Discount Deadline
- May 2, 2026
- Availability
- Live in Cursor editor
The update highlights limitations in public benchmarks like SWE-bench, which often suffer from data contamination. By using CursorBench methodology, the team uses agentic graders to measure performance on real-world, underspecified tasks. This provides a clearer distinction between frontier models that developers experience as meaningfully different.
You can now select GPT-5.5 within the Cursor editor, which extends the parallel agent capabilities recently added to the platform. Through a partnership with OpenAI, the model is available at a 50% discount until May 2, 2026. This pricing applies to all users, making it cost-effective to test the model's improved persistence.
Still wondering? A few quick answers below.
CursorBench is an internal evaluation suite used by the Cursor team to measure AI model quality. It uses real developer sessions and Cursor Blame to pair queries with ground-truth solutions. Unlike public benchmarks, it focuses on complex, multi-file tasks and monorepos navigation to better reflect how engineers actually use AI agents in production environments.
Through a direct partnership with OpenAI, Cursor is offering GPT-5.5 at a 50 percent discount for all users. This promotional pricing is available within the editor to encourage developers to test the model's improved coding persistence and tool-use reliability. The discounted rate is scheduled to remain in effect for a limited time, ending on May 2, 2026.
GPT-5.5 currently holds the top position on the CursorBench-3 leaderboard with a correctness score of 72.8 percent. This internal benchmark is designed to be more difficult than public sets like SWE-bench, as it involves larger edit sizes and ambiguous developer requests that require multi-step reasoning, tool use, and autonomous navigation across multiple files.
Cursor avoids public benchmarks because they often suffer from data contamination, where tasks appear in model training data and inflate scores. Many public tests also focus on narrow bug-fixing rather than complex agent workflows. CursorBench uses internal, unseen code and agentic graders to provide a more accurate assessment of how models handle real-world engineering work.
GPT-5.5 is now available to all Cursor users directly within the code editor. Users can select the model from the dropdown menu to use it for chat, codebase indexing, and autonomous agent tasks. The integration allows developers to leverage the model's frontier intelligence for complex coding workflows while benefiting from a temporary 50 percent price reduction through May 2.
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