Choose your AI
Pick an AI model and get your Anthropic API key.
Your agent runs on Anthropic Claude. You can pick between Haiku (cheaper) and Sonnet (higher quality) depending on the writing fidelity you need.
API key vs Claude subscription
A Claude Pro subscription (claude.ai) is for chatting in your browser - it does NOT include API access. Your agent needs an API key from platform.claude.com, which charges per token used (~$19/month for 200 leads + 200 DMs).
Cost comparison
What you'll spend per month to find 200 qualified leads and send 200 personalized DMs.
| Config | Type | Quality | Cost/month |
|---|---|---|---|
| Sonnet + Haiku | API | Excellent | $19 |
| Haiku only | API | Good | $8 |
Get your API key
- Go to platform.claude.com and create an account (Google or email)
- In the left sidebar, go to Settings then Billing and add a credit card
- Go to Settings then Limits and set a monthly spending limit ($25-50 to start) and usage notifications
- Go to Settings then API keys, click Create key, name it "BeReach" and copy the key
Your key starts with sk-ant-api.
Copy it now
You can only see the full key once. If you lose it, delete it and create a new one.
Always set a spending limit
Set a spending limit at platform.claude.com > Settings > Limits before connecting. Start with $25-50. You can see real-time cost reporting at chat.bereach.ai.
Which model should I pick?
- Sonnet + Haiku — best quality for personalized DMs. The agent uses Sonnet for creative output and Haiku for everything else.
- Haiku only — cheapest. Acceptable for high-volume campaigns where writing fidelity matters less.