Japanese inference provider ai& day-one launches Kimi K3.1 Pro and Muse Spark Open
DavidBennett__ · x · 2026-11-14
Japanese inference provider ai& added day-one support for two new open-weight models: Moonshot's Kimi K3.1 Pro and Meta's first open-weight release, Muse Spark Open, claiming to be the first provider of both in Japan.
Japan-local pricing per million tokens: Muse Spark Open at ¥200 input / ¥24 cached input / ¥680 output with 1M context; Kimi K3.1 Pro at ¥320 input / ¥32 cached input / ¥1,600 output with 1M context.
Related event: Japan's ai& Launches Kimi K3.1 Pro and Meta Muse Spark Open on Day One(2 posts)→
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