Anthropic (Claude models)

120 AI Chat lets you connect your own Anthropic API key.

API Key Setup Guide

1. Visit console.anthropic.com.
2. In Account Settings, generate your API key.
3. In 120 AI Chat → Settings → AI Providers, paste your key into the Anthropic Key field.

💡 Billing is managed directly by Anthropic.

Example pricing (Mar 2026):

• Claude Opus 4.6: $5 / million input tokens, $25 / million output tokens.
• Claude Sonnet 4.6: $3 / million input tokens, $15 / million output tokens.
• Claude Haiku 4.5: $1 / million input tokens, $5 / million output tokens.

See the latest pricing at Anthropic Pricing.