Grok 4 vs Grok 3 Fast

Looking for a powerful AI model for advanced reasoning and deep understanding? Grok 4 by xAI offers a context window of 256,000 tokens and a lower pricing of $3/M input, making it perfect for tasks requiring complex reasoning. On the other hand, Grok 3 Fast is ideal for in-depth analysis with a context window of 131,072 tokens, but at a slightly higher price of $5/M input. Choose Grok 4 for tasks needing a larger context window and lower cost, while Grok 3 Fast is great for efficient analysis and performance.