OpenRouter
Quick-setup multi-model access through a single API key. Works inside the editor's chat panel — no CLI required.
OpenRouter gives you access to dozens of AI models (Claude, GPT, Gemini, Llama, and more) through a single API key. No CLI install required — paste a key in settings and you’re done.
When to use OpenRouter
- You want to try multiple models without setting up multiple agents
- You only need quick one-off tasks and don’t want to install a CLI
- You’re testing which model works best for your workflow
OpenRouter does not support our marketplace plugin path — it’s only available as an in-editor agent. For driving the editor from a terminal, use Claude Code CLI or ChatGPT Codex CLI.
Setup
- Create an account at openrouter.ai.
- Generate an API key from the dashboard.
- In Unreal, go to Tools > Agent Chat > Settings > Chat & Agents > Chat Providers.
- Add or select OpenRouter, then paste your key into the API key field.
- Start a chat with Local & BYOK Chat or OpenRouter, then pick an OpenRouter model.
Recommended Models
| Model | Best for |
|---|---|
anthropic/claude-sonnet-4 |
Complex tasks, coding |
openai/gpt-4o |
General purpose |
google/gemini-2.5-pro |
Reasoning and long-context work |
Pricing
OpenRouter charges per token. Check openrouter.ai/models for current rates.
Notes
- OpenRouter is a built-in provider in NeoStack AI.
- Token limits depend on your credit balance. If your balance runs low, you may see HTTP 402 errors.