Grok's latest voice agent just made some serious waves—it's now the top performer in the Big Bench Audio benchmark, beating out both Gemini 2.5 Flash Native Audio and GPT Realtime in direct comparison. The speech-to-speech capabilities are genuinely impressive. This shifts the conversation around voice AI models pretty significantly. For anyone tracking AI infrastructure developments and their impact on agent-based applications, this is worth paying attention to. The benchmark results show meaningful performance gaps between the leading implementations. As voice AI becomes increasingly central to autonomous agents and real-time interaction layers, these technical advances could shape how next-gen protocols and applications handle human-machine communication in Web3 environments.