They are Facebook owner Meta’s new AI glasses.
FT App on Android & iOS
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第三十七条 纳税人发生应税交易，应当向购买方开具发票。有下列情形之一的，不得开具增值税专用发票：
In voice systems, receiving the first LLM token is the moment the entire pipeline can begin moving. The TTFT accounts for more than half of the total latency, so choosing a latency-optimised inference setup like Groq made the biggest difference. Model size also seems to matter: larger models may be required for some complex use cases, but they also impose a latency cost that's very noticeable in conversational settings. The right model depends on the job, but TTFT is the metric that actually matters.