Is claude-opus-4.8-medium good at Coding?
claude-opus-4.8-medium ranks #1 of 52 for Coding — excellent.
claude-opus-4.8-medium on each Coding sub-task
| Refactoring | 100.0/100 | #9 |
| Code Review & Security | 100.0/100 | #16 |
| Secure Implementation | 99.5/100 | #15 |
| Code Quality and Testing Test | 94.2/100 | #1 |
| API and Data Code Test | 76.8/100 | #9 |
Real examples, graded
WinRefactor long function 96/100
“The response perfectly executes the refactoring task, extracting logic into well-named helper functions without altering behavior. The inclusion of constants, clear explanations, and a quick regression test makes it an expert-level answer. The tests could be slightly more comprehensive to cover all branches, but overall the execution is outstanding.”
WinPerformance optimization 93/100
“The response provides an expert-level, production-ready solution to the N+1 query problem. It correctly utilizes batching and window functions, handles edge cases perfectly, and provides a highly insightful explanation of tradeoffs. The only minor gap is the lack of unit tests, which were mentioned in the benchmark description but not explicitly requested in the task prompt.”
Frequently asked
Is claude-opus-4.8-medium good at Coding?
claude-opus-4.8-medium ranks #1 of 52 models we tested for Coding, scoring excellent.
What is claude-opus-4.8-medium's strongest Coding skill?
Its best sub-task here is Refactoring.
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Prompt × model results
12 test cases · 3 evals