Use OpenCode Go models in ZCode
I subscribe to OpenCode Go for its open coding models, and the same models work inside ZCode too, because ZCode accepts any custom provider that speaks the OpenAI or Anthropic protocol. Same trick as when I pointed OpenCode itself at NVIDIA's models a while back.
The setup is just a few fields in ZCode's Model settings. Click "Add provider", name it OpenCode, and fill these in:
Base URL: https://opencode.ai/zen/go/v1
API format: Chat completions (/chat/completions)
API key: your key from opencode.ai/authThen click "Add model" and type the model IDs you want, like glm-5.3-flash or deepseek-v4-flash, and enable the provider.
One catch is that Go splits its catalog across two formats. The Qwen and MiniMax models are only served through the Anthropic messages format, so for those add a second provider with the same key, set the format to Anthropic messages (/v1/messages), and use https://opencode.ai/zen/go as the base URL. ZCode appends /v1/messages itself. Grok 4.6 and GPT 5.6 Luna don't work at all, they only exist on OpenAI's Responses API, which ZCode doesn't speak.
Once a model responds, open its edit dialog and set the real context window, max output tokens, and input types. The input types matter most, that's how ZCode knows glm-5.3-flash accepts screenshots while deepseek-v4-flash is text-only.
The full live model list stays at https://opencode.ai/zen/go/v1/models, so I just paste a new ID into ZCode whenever a new model shows up. Go's limits are dollar-based, $12 per 5 hours, $30 weekly, $60 monthly, so cheaper models like deepseek-v4-flash stretch the plan much further. And if you are about to subscribe, use a referral link, the $5 reward cuts the 5-hour limit by up to 41%.
Some links here are affiliate or referral links. Buying through them supports this site at no extra cost to you, and it doesn't affect my opinions.