Documentation

Zed Editor

Use Zed custom language model settings to call Prismatic through the OpenAI-compatible API.

Configuration

Open Zed settings and configure the openai language model provider.
Set api_url to https://api.prismaticapi.com/v1.
Add the public model IDs you want exposed in the model picker.
Set the API key through Zed secrets or your environment.

Example

settings.json

{
  "language_models": {
    "openai": {
      "api_url": "https://api.prismaticapi.com/v1",
      "available_models": [
        {
          "name": "claude-sonnet-4-6",
          "display_name": "Prismatic Sonnet",
          "max_tokens": 200000
        }
      ]
    }
  }
}

Recommended models

claude-sonnet-4-6 — strong model for reasoning, refactors and coding agents.
claude-haiku-4-5 — fast option for autocomplete, small questions and lightweight tasks.
deepseek-v3-2 or another public ID — alternative based on your active catalog and plan.

Troubleshooting

Authentication error

Check that the API key has no extra spaces and has not been revoked in the dashboard.

Model rejected

Use a public model ID returned by GET /v1/models; do not use labels or aliases.

Connection issue

Confirm the configured base URL is exactly the one shown above and that your network allows HTTPS to api.prismaticapi.com.

Notes

If Zed does not list the model, verify the model name exactly matches a public ID from /v1/models.
Use a lower-latency model for inline edits and a stronger model for planning.

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