April 26, 2026 AI News Digest: Voice AI Breakthrough, Vision Models Unite, Long-Context LLMs Surge, and Coding Agents Get Structural Awareness xAI Launches grok-voice-think-fast-1.0: Topping τ-voice Bench at 67.3%, Outperforming Gemini, GPT Realtime, and More xAI has released grok-voice-think-fast-1.0, a flagship voice model designed for complex, ambiguous, multi-step workflows across customer support, sales, and enterprise ➡️➡️➡️