Getting errno: -32, code: 'EPIPE', syscall: 'write' when using Opus 4

Resolved 💬 1 comment Opened Jul 22, 2025 by kaeruB Closed Jul 22, 2025

Bug Description
Getting consistent EPIPE error (errno -32) when using the Opus 4 model for coding tasks (planning doesn't fail)

Error Details
errno: -32,
code: 'EPIPE',
syscall: 'write'

Environment

  • Platform: macOS (Apple M1 Max)
  • Model: Opus 4
  • Working directory: appears in a React project and in another Ruby on Rails project (thus, it doesn't seem to be project dependent problem)

Troubleshooting Attempted

  • /clear
  • session restart

Other info
The problem appeared after one week of everyday usage.
Sonnet 4 works fine.

View original on GitHub ↗

This issue has 1 comment on GitHub. Read the full discussion on GitHub ↗