Best OpenRouter Alternatives in 2026
5 alternatives to OpenRouter in the Code & Development category — ranked by relevance, with pricing and open-source flags so you can shortlist quickly.
Best overall alternative
Antigravity Link
VS Code extension that bridges mobile devices to Google's Antigravity IDE (a Claude-powered VS Code fork). Mirror…
Best free alternative
HeyTensor
Free browser-based PyTorch tensor shape calculator with 22 tools. Computes shapes through Conv, Linear, LSTM, and…
Quick comparison table
| Tool | Pricing | Open Source | Sub-category |
|---|---|---|---|
| Antigravity Link | Open Source | Yes | Code & Development |
| HeyTensor | Free | No | Code & Development |
| BurnRate | — | No | Code & Development |
| AppDeploy | — | No | Code & Development |
| onUI | Open Source | Yes | Code & Development |
All OpenRouter alternatives
Antigravity Link
VS Code extension that bridges mobile devices to Google's Antigravity IDE (a Claude-powered VS Code fork). Mirror…
HeyTensor
Free browser-based PyTorch tensor shape calculator with 22 tools. Computes shapes through Conv, Linear, LSTM, and…
BurnRate
Local-first AI coding cost analytics. Tracks Claude Code, Cursor, Codex, Copilot, Windsurf, Cline, and Aider. Cost…
AppDeploy
Describe what you want to build to your favorite AI assistant, such as ChatGPT, Claude, or any other MCP client.…
onUI
Open-source browser extension and MCP server for annotation-first UI pair programming with AI agents. Works with…
FAQ
Why look for an alternative to OpenRouter?
Common reasons: pricing changes, missing features, deprecated functionality, data residency requirements, or preference for open-source / self-hostable software. The alternatives above are all in the same category.
Are these OpenRouter alternatives free?
HeyTensor is a free option. Antigravity Link is open-source and self-hostable. Always verify current pricing on the official tool site.
Is there an open-source alternative to OpenRouter?
Yes — Antigravity Link is the closest open-source option in this category.