Void
An open source Cursor alternative that connects directly to any LLM
What is Void?
Void is an open-source code editor from Glass Devtools that lets developers connect directly to any LLM provider without a proprietary middleware layer. It positions itself as a Cursor alternative with full transparency over which model handles each request. The companion Glass.js browser-editing product has been discontinued.
Coding agents and AI developer tools for writing, reviewing, debugging, and shipping software.
See the full AI Coding guide to compare more tools, buyer criteria, and related workflows.
Use cases to evaluate
Self-hosted AI pair-programming for teams with strict data-residency rules
Routing different coding tasks to different LLM providers from one editor
Avoiding subscription markup by paying inference providers directly
Forking and customizing an AI editor for internal developer platforms
Fit to evaluate
Privacy-sensitive engineering teams in regulated industries
Power users who already hold direct API contracts with model vendors
Open-source contributors building on top of an AI editor
Solo developers wanting Cursor features without recurring SaaS fees
Business fit
Right for you if you want Cursor-style AI coding but need full control over model selection, data routing, or self-hosting because of compliance or cost. Skip if you prefer a polished hosted product with billing handled for you. Engineers who already pay Anthropic or OpenAI directly can reuse those keys here. Information Gain: Void is fully open-source on GitHub and routes requests directly to provider APIs, so there is no Glass-side inference markup.
How to evaluate Void
Use this category when software delivery speed, code review, or developer leverage is a business constraint.
Confirm the exact workflow
Map Void to one concrete workflow first, such as self-hosted ai pair-programming for teams with strict data-residency rules. Avoid buying before the owner, trigger, output, and success metric are clear.
Check category fit
Test with your actual repository and review diff quality.
Compare practical alternatives
Shortlist Void against Codex, Claude Code, Cursor so the decision is based on fit, effort, and workflow ownership rather than brand recognition alone.
Validate cost and rollout effort
Void itself is free and open source; users bring their own API keys and pay LLM providers (Anthropic, OpenAI, etc.) directly for inference. No public subscription tiers listed by Glass Devtools. Also confirm implementation time, support needs, and whether the technical setup matches your team.
Compare Void with alternatives
Use this quick comparison before booking demos or moving data into a new system.
| Primary workflow | Self-hosted AI pair-programming for teams with strict data-residency rules, Routing different coding tasks to different LLM providers from one editor |
|---|---|
| Best-fit team | Privacy-sensitive engineering teams in regulated industries, Power users who already hold direct API contracts with model vendors |
| Implementation effort | Technical setup and maintenance profile |
| Pricing check | Free plan + paid plans |
| Closest alternatives | CodexClaude CodeCursorGitHub Copilot |
Void pricing
| Model | Free plan + paid plans |
|---|---|
| Snapshot | Void itself is free and open source; users bring their own API keys and pay LLM providers (Anthropic, OpenAI, etc.) directly for inference. No public subscription tiers listed by Glass Devtools. |
| Checked |
Common questions about Void
What is Void?
Void is an open-source code editor from Glass Devtools that lets developers connect directly to any LLM provider without a proprietary middleware layer. It positions itself as a Cursor alternative with full transparency over which model handles each request. The companion Glass.js browser-editing product has been discontinued.
What is Void used for?
Common use cases: Self-hosted AI pair-programming for teams with strict data-residency rules; Routing different coding tasks to different LLM providers from one editor; Avoiding subscription markup by paying inference providers directly; Forking and customizing an AI editor for internal developer platforms.
How much does Void cost?
Void itself is free and open source; users bring their own API keys and pay LLM providers (Anthropic, OpenAI, etc.) directly for inference. No public subscription tiers listed by Glass Devtools.
Who is Void best for?
Void fits Privacy-sensitive engineering teams in regulated industries, Power users who already hold direct API contracts with model vendors, Open-source contributors building on top of an AI editor, Solo developers wanting Cursor features without recurring SaaS fees. Right for you if you want Cursor-style AI coding but need full control over model selection, data routing, or self-hosting because of compliance or cost. Skip if you prefer a polished hosted product with billing handled for you. Engineers who already pay Anthropic or OpenAI directly can reuse those keys here. Information Gain: Void is fully open-source on GitHub and routes requests directly to provider APIs, so there is no Glass-side inference markup.
What are alternatives to Void?
Common alternatives to Void include Codex, Claude Code, Cursor, GitHub Copilot, Replit, Windsurf.