Use i14 Models in OpenCode

OpenCode is an open-source AI coding agent for the terminal. It supports any OpenAI-compatible endpoint as a custom provider, so you can add the i14 API in a few lines of config and use Sugar Glider (i14-sugarglider-nemotron3-super-120B-v1) for chat, file edits, and tool use.

1. Install OpenCode

   npm install -g opencode-ai

2. Export your API key

   Create an API key at platform.i14.ai, then export it in the shell you run OpenCode from:

   macOS and Linux

   bash or zsh

   export I14_API_KEY="your_api_key_here"

   Windows

   PowerShell

   $env:I14_API_KEY = "your_api_key_here"

3. Add the i14 provider

   Create opencode.json in your project directory:

   {
     "$schema": "https://opencode.ai/config.json",
     "provider": {
       "i14": {
         "npm": "@ai-sdk/openai-compatible",
         "name": "i14",
         "options": {
           "baseURL": "https://api.i14.ai/v1",
           "apiKey": "{env:I14_API_KEY}"
         },
         "models": {
           "i14-sugarglider-nemotron3-super-120B-v1": {
             "name": "Sugar Glider",
             "limit": {
               "context": 32768,
               "output": 16384
             }
           }
         }
       }
     }
   }

   {env:I14_API_KEY} tells OpenCode to read the key from your environment, so the key never lands in the file.

4. Run OpenCode

   Confirm that OpenCode sees the model:

   opencode models i14

   Then send a one-off prompt:

   opencode run -m i14/i14-sugarglider-nemotron3-super-120B-v1 "Read README.md and summarize it."

Note

OpenCode sends limit.output as max_tokens on every request, so replies are not cut off at the API’s 100-token default.

Troubleshooting

• 403 with model_not_allowed - check that the model key under models is exactly i14-sugarglider-nemotron3-super-120B-v1.
• 401 with missing_api_key - I14_API_KEY is not set in the shell that started OpenCode. See API Key and Authentication for the full list of error codes.