Moshi team's fun checkpoint: 2k hours of 90s phone calls made every call feel like 1999

rdesh26 · x · 2026-10-24

Moshi co-creator neilzegh recalled that two years ago they trained a fun early checkpoint directly on Fisher (late-90s/early-2000s phone calls) with just 2k hours of data — every call connected you to a random stranger from that era. He notes hundreds of thousands of hours of full-duplex conversational data now exist, so there's an obvious scaling law for full-duplex voice. Context: Jack launched Dessa, billed as the most authentic full-duplex speech model, with emotional, natural human-like cadence.

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Moshi team's fun checkpoint: 2k hours of 90s phone calls made every call feel like 1999

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