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Capability-based AI provider routing for WordPress 7.0

Works with WordPress 7.0-RC2, tested using WordPress AI. Tested text generation and image generation, using two separate Azure OpenAI deployments (gpt-4.1 for text, gpt-image-1 for images).

Route AI requests to different provider configurations based on capability. Configure multiple instances of the same AI provider (e.g., GPT-4o for text, gpt-image-1 for images) and let AI Router automatically select the right one.

Why AI Router?

WordPress 7.0's AI Client SDK only allows one configuration per provider type. AI Router solves this by enabling:

• Multiple configurations of the same provider (e.g., separate Azure OpenAI deployments)
• Capability-based routing — text generation to GPT-4, images to DALL-E
• Default fallback — set a default for unmatched capabilities
• Automatic selection — no code changes needed in plugins using the AI SDK

Supported Providers

AI Router works with any AI provider registered with the WordPress 7 AI Client SDK. Providers are discovered dynamically at runtime via ProviderDiscovery.

Tested providers:

• OpenAI
• Azure OpenAI
• Anthropic
• Ollama

Other providers (Google AI, Cohere, etc.) will work automatically when installed — no code changes required.

Requirements

• WordPress 7.0+
• PHP 8.3+
• Underlying AI provider plugin(s) installed (e.g., ai-provider-for-openai)

Installation

From GitHub Release

1. Download ai-router.zip from Releases
2. Upload via Plugins → Add New → Upload Plugin
3. Activate the plugin

From Source

cd wp-content/plugins
git clone https://github.com/soderlind/ai-router.git
cd ai-router
composer install --no-dev
npm install && npm run build

Automatic Updates

The plugin includes a GitHub updater — updates are delivered automatically when new releases are published.

Configuration

1. Go to Settings → Connectors in WordPress admin
2. In the AI Router section, click Add Configuration
3. Select a provider and configure its settings (API key, model, endpoint)
4. Assign capabilities to the configuration
5. Optionally set one configuration as default

Capability Mapping

Map specific capabilities to specific configurations:

text_generation  → GPT-4 Config
image_generation → DALL-E Config
chat_history     → GPT-4 Config

Unmapped capabilities fall back to the default configuration.

See docs/ for detailed routing logic and architecture.

Development

Build Assets

npm install
npm run build        # Production build
npm run start        # Watch mode

Run Tests

# PHP tests (PHPUnit + Brain Monkey)
composer install
composer test

# JavaScript tests (Vitest)
npm run test:js
npm run test:js:watch

Changelog

See CHANGELOG.md for version history.

License

GPL-2.0-or-later — see LICENSE for details.

Author

Per Søderlind