AI Providers

Sentri supports four AI providers. Switch at any time from the Settings page — no restart needed.

Provider Comparison

Provider	Model	Cost	Best For
Anthropic Claude	claude-sonnet-4-20250514	Pay-as-you-go ($5 min)	Best quality output
OpenAI	gpt-4o-mini	Pay-as-you-go	Fast, high-volume crawls
Google Gemini	gemini-2.5-flash	Free tier (20 req/day)	Testing / evaluation
Ollama	mistral:7b (configurable)	Free, local	Privacy, no API key needed

Auto-detection order: Anthropic → OpenAI → Google → Ollama

Configuration

Via Settings Page (Runtime)

Navigate to Settings in the app. Enter your API key for any cloud provider, or click "Activate Ollama" for local inference.

Via Environment Variables (Persistent)

Add to backend/.env:

# Cloud providers (pick one or more)
ANTHROPIC_API_KEY=sk-ant-api03-...
OPENAI_API_KEY=sk-proj-...
GOOGLE_API_KEY=AIza...

# Local / Ollama (no key needed)
AI_PROVIDER=local
OLLAMA_BASE_URL=http://localhost:11434
OLLAMA_MODEL=mistral:7b

Using Ollama (Free Local AI)

1. Install from ollama.com
2. Pull a model:

   ollama pull mistral:7b          # ~2 GB, good quality
   ollama pull qwen2.5-coder:7b  # great for code generation
   ollama pull mistral           # lighter alternative

3. Start the server: ollama serve
4. In Sentri Settings, select Ollama — or set AI_PROVIDER=local in .env

Recommended Models

For best results use a model with strong JSON output and code generation: mistral:7b, qwen2.5-coder:7b, or mistral. Small models (≤3B) may struggle to produce valid Playwright code.