Issue with sdk.chat function: Undefined Error #4977

Description

Hello,

I'm encountering an issue when trying to execute opencode. The error log indicates that sdk.chat is undefined. After a successful auth login into github-enterprise I start opencode and ask something. Here are the details:

Error Log:

ERROR 2025-12-02T10:07:17 +21ms service=default e=sdk.chat is not a function. (In 'sdk.chat(modelID)', 'sdk.chat' is undefined) rejection

OpenCode version

1.0.126

Steps to reproduce

1. remove all relevant directories
2. rm -rf .cache/opencode
3. rm -rf .config/opencode
4. rm -rf .local/share/opencode
5. rm -rf .opencode
6. opencode auth login
7. successful login in an gitHub-enterprise account xxx.ghe.com
8. start opencode and ask something
9. tested also different models, always the same issue

Screenshot and/or share link

Operating System

macOS 15.2

Terminal

Wezterm or Ghostty with tmux

Thank you for your help!