Zed Editor Quick Switch to Sigma MaaS

Add Sigma MaaS to Zed Editor as an OpenAI-compatible provider and start using hosted models through a clean English configuration flow

Zed Editor supports custom LLM providers through an OpenAI-compatible API. With Sigma MaaS, you can configure Zed once and use Sigma-hosted models for chat, coding assistance, and tool-enabled workflows.

https://zed.dev/

Zed — Love your editor again

A high-performance, multiplayer code editor from the creators of Atom and Tree-sitter. Download and install Zed before following this guide.

Prerequisites
Open the Assistant Panel
Add Sigma as a Provider
Fill Provider Settings
Verify the Setup
Summary

Prerequisites

Requirement	Details
Zed Editor	Installed and running on your system.
Sigma API Key	Create or copy your API key from Sigma Studio.
Global API Base URL	`https://api.sigmaauto.ai/api/v1`
Recommended Starter Model	`gpt-5`

Open the Assistant Panel

In Zed, click the assistant icon in the lower-right toolbar to open the AI assistant and provider settings flow.

Open Assistant Controls

Use the toolbar action highlighted in the screenshot to open the assistant-related configuration area.

Zed toolbar with assistant button highlighted

Add Sigma as a Provider

In the LLM Providers screen, add a new provider using the OpenAI-compatible option.

Choose Add Provider

Click Add Provider, then choose OpenAI under Compatible APIs.

Zed LLM Providers screen showing Add Provider and OpenAI option

Zed uses the OpenAI-compatible provider path for Sigma MaaS. You do not need to choose a separate vendor-specific integration for this setup.

Fill Provider Settings

Complete the provider form using Sigma values. The example below uses gpt-5 as the first model.

Enter Provider Details

Field	Value
Provider Name	`SigmaAI`
API URL	`https://api.sigmaauto.ai/api/v1`
API Key	Your Sigma API key
Model Name	`gpt-5`
Max Completion Tokens	`200000`
Max Output Tokens	`32000`
Max Tokens	`200000`
Supports tools	Enabled

Zed add LLM provider dialog configured for SigmaAI

Important: Make sure the API URL ends exactly with /api/v1. Using the wrong base path will prevent Zed from reaching the OpenAI-compatible endpoints correctly.

Suggested Model Options

Model	Use Case
`gpt-5`	Balanced general-purpose coding and reasoning
`gpt-5.4`	Latest GPT option for advanced tasks
`gpt-4o`	Fast multimodal interactions
`glm-5.1`	Alternative OpenAI-compatible flagship model

Verify the Setup

After saving the provider, return to Zed assistant features and start a short test interaction.

Save and Test

Save the provider, then open a chat or assistant workflow in Zed and submit a short prompt to confirm the model responds correctly.

If you want to add more models later, repeat the same provider pattern or extend the provider configuration with additional model entries supported by your Zed version.

Summary

You now have a complete English setup flow for Zed Editor with Sigma MaaS:

Open the assistant panel from the Zed toolbar
Add a new OpenAI-compatible provider
Set the API URL to https://api.sigmaauto.ai/api/v1
Configure the first model as gpt-5
Save and test the provider inside Zed

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