xAI (Grok models) API
120 AI Chat lets you connect your own xAI API key for Grok models.
API Key Setup Guide
- Visit x.ai.
- In your account, generate an API key.
- In 120 AI Chat → Settings → AI Providers, paste your key into the xAI Key field.
💡 Billing is managed directly by xAI.
Example pricing (Mar 2026):
- Grok 4.20 Beta: $2.00 / 1M input tokens, $6.00 / 1M output tokens.
- Grok 4.20 Multi-Agent Beta: $2.00 / 1M input tokens, $6.00 / 1M output tokens.
- Voice Agent API: $0.05 / minute ($3.00 / hour).
- Text to Speech: $4.20 / 1M characters.
- Tool calls: Web Search $5 / 1K calls, X Search $5 / 1K calls, Code Execution $5 / 1K calls, Collections Search $2.50 / 1K calls.
See the latest pricing at xAI Pricing.