Claude Opus 5.5 in Cursor: top of CursorBench at 40% lower cost

Melvin Vivas · X post · 2026-09-23 · Open on X

Topics: AI Dev Tools & Productivity, Industry Trends & Job Market · Level: beginner

Summary

Claude Opus 5.5 is now available in Cursor. It is the new top model on CursorBench at 57.8% (Max mode) and costs 40% less per task than Opus 5. It's a useful data point for choosing a model inside your coding assistant.

Key points

• Claude Opus 5.5 is available in Cursor.
• It is the new #1 model on CursorBench with 57.8% (Max mode).
• It costs 40% less per task than Opus 5.
• Cost per task, not just accuracy, is a key metric when choosing a coding model.

Resources mentioned

• Cursor · tool · x.com · free · recommended by both Bashiri Smith & Melvin Vivas
  AI-native code editor (VS Code with AI built in).
  Also in: GLM 5.3 and GLM 5.3 Flash now in Cursor (Melvin Vivas on X · notes), Grok Bot Can Now Hand Off Coding Tasks to Cursor (Melvin Vivas on X · notes), Why Plan Mode Still Matters in AI Coding Assistants (Codex, Claude, Cursor) (Melvin Vivas on X · notes), Why Plan Mode Still Matters in AI Coding Agents (Codex, Claude, Cursor) (Melvin Vivas on X · notes) and 121 more
• Claude Opus 5.5 · tool · claude.ai · paid · open in a browser to verify · recommended by both Bashiri Smith & Melvin Vivas
  Anthropic's AI assistant, used throughout the guide to tailor resumes, add live roles to the tracker, match connections to target companies and find hiring managers.
  Also in: Generating a Repo Promo Video with a Claude Skill on Sonnet 5.5 vs Opus 5.5 (Melvin Vivas on X · notes), Comparing Coding Models on the Same Task in Devin iOS (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), AI Engineer Roadmap Overview: From ML Foundations to RAG, Agents & Ops (Bashiri Smith on Facebook · notes) and 53 more
• CursorBench · other · cursor.com · free
  Cursor's benchmark for comparing model performance on coding tasks.
  Also in: Claude Fable 5.1 Scores 73.4% on CursorBench 3.2 (Melvin Vivas on X · notes), Why Claude Fable 5.1 Costs Less: Cheaper Cache Reads (Melvin Vivas on X · notes)