In August, Elon Musk's AI startup xAI promised to launch a generative AI model API named Grok, and this promise has finally come to fruition. However, the current API is relatively simple in functionality. Currently, xAI's API only offers one model, 'grok-beta', priced at $5 per million input tokens (approximately 750,000 words) or $15 per million output tokens. Tokens are essentially raw data.