Providers

cora supports multiple AI providers. Use your own API key — no subscriptions to us.

Supported Providers

Provider	Default Model	Env Var	Custom Base URL
OpenAI	gpt-4o-mini	OPENAI_API_KEY	OPENAI_BASE_URL
Anthropic	claude-sonnet-4-20250514	ANTHROPIC_API_KEY	ANTHROPIC_BASE_URL
Groq	llama-3.1-8b-instant	GROQ_API_KEY	GROQ_BASE_URL
Ollama	llama3.1	— (local)	OLLAMA_HOST (default: http://localhost:11434)
Z.AI	glm-5.1	ZAI_API_KEY	ZAI_BASE_URL

Auto-Detection

cora automatically detects which provider to use by checking environment variables in this order:

1. OPENAI_API_KEY → uses OpenAI
2. ANTHROPIC_API_KEY → uses Anthropic
3. GROQ_API_KEY → uses Groq
4. ZAI_API_KEY → uses Z.AI
5. OLLAMA_HOST → uses Ollama (localhost)

Override auto-detection with CORA_PROVIDER env var or --provider flag.

Usage Examples

# Use OpenAI (auto-detected from OPENAI_API_KEY)
$ OPENAI_API_KEY=sk-... cora review --staged

# Use Anthropic with explicit provider
$ CORA_PROVIDER=anthropic CORA_API_KEY=sk-ant-... cora review --staged

# Use Ollama locally (no API key needed)
$ CORA_PROVIDER=ollama cora review --staged

# Use a custom model
$ CORA_MODEL=gpt-4o-mini cora review --staged