Qwen3.8 125B (6B active) Flash-Next

User reports Qwen3.8 Flash-Next running at about 40 tokens/sec in a local coding workflow, alongside Qwen3.8 27B, driven from VSCode with Copilot as the harness. The workflow has the model implement GitHub issues, write tests, run the app, push and open a PR, with Muse or Gemma swapped in for PR review. User says Copilot has been timing out and needing retries, which is annoying at that speed, and is considering Pi or OpenCode as a replacement harness.