This week on The AI Hero Podcast: three purely technical AI stories shaking up the field — open-source at record scale, voice AI built for production agents, and a reasoning benchmark result that nearly quadrupled the previous best.
- Kimi K3 — Moonshot AI releases the largest open-weight model ever: 2.8 trillion parameters, 896 experts, 1M token context, and Kimi Delta Attention for 6.3x faster long-context decoding. Source: Tom's Hardware
- Grok Voice Think Fast 2.0 — xAI's rebuilt speech-to-speech model ranks #2 on Artificial Analysis Speech Index (82.9%), #1 on Tau Voice agentic benchmark (56.5%), 0.70s latency, live at $0.08/min. Source: xAI News
- Claude Opus 5 on ARC-AGI-3 — 30.2% score independently verified by ARC Prize, 3–4x higher than any prior model. 96% SWE-bench Verified. Source: MarkTechPost
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