xAI quietly dropped a massive update for Grok-4-Fast today. Use Grok4-Heavy + Grok-4-Fast + Grok-Code-Fast-1 for code. Grok4 is the best model in the world right now. Reasoning Mode: Jumped from 77.5% to 94.1% completion rate. Non-Reasoning Mode: Jumped from 77.9% to 97.9%. 2M context, unified modes, and SOTA. API: $0.20/M input tokens, $0.50/M output. SuperGrok/Premium+ for unlimited. Multimodal (text + images) with built-in web/X search.
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Replying to @tetsuoai
If those numbers hold up consistently, it really signals a major shift in accessible, high-performance LLMs. It's exciting to see open development pushing the envelope this aggressively, making top-tier capabilities available sooner than many expected.

Nov 8, 2025 · 10:23 PM UTC
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