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xAI (Grok models) API ​

120 AI Chat lets you connect your own xAI API key for Grok models.

API Key Setup Guide ​

  1. Visit x.ai.
  2. In your account, generate an API key.
  3. 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.