Chung Min Kim on X: “With FastTD3's recipe, QF3 is also fast: it learns G1 motion tracking …”

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Chung Min Kim on X: “With FastTD3's recipe, QF3 is also fast: it learns G1 motion tracking …” | PeekX

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Chung Min Kim

@ChungMinKim

Oct 6

We find this actor update to be very versatile!
Since it only changes the actor loss, QF3 drops right into FastTD3's recipe (younggyo.me/fast_td3) for humanoids -- and the policies transfer zero-shot to the G1

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Chung Min Kim

@ChungMinKim

Replying to @ChungMinKim

With FastTD3's recipe, QF3 is also fast: it learns G1 motion tracking in ~30 min on a single GPU, ~10x faster than the on-policy FPO++! (and with ~10x fewer env steps)

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Oct 6, 2026, 6:43 PM UTC

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