3h ago

Omar Khattab co-authors Pedagogical RL paper that trains self-teachers as gently off-policy samplers to produce correct and step-by-step easy rollouts

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Approach adds scalable paradigm to GRPO-based reinforcement learning discussions.

Original post

It feels like the next breakthrough on a scalable training algorithm is close, likely on top of GRPO with denser credit assignment beyond outcome rewards, but done so with lower bias. - ECHO does this by limiting credit to environment responses - Composer2/Self distillation/OPD

8:00 AM · May 19, 2026 View on X
whwh@nrehiew_

It feels like the next breakthrough on a scalable training algorithm is close, likely on top of GRPO with denser credit assignment beyond outcome rewards, but done so with lower bias. - ECHO does this by limiting credit to environment responses - Composer2/Self distillation/OPD

3:00 PM · May 19, 2026 · 8.6K Views
4:15 PM · May 19, 2026 · 3.4K Views

Impossible to say for sure obviously, but the fact that so many different groups are doing the same thing along the same axis likely means we are very very close to something with the same impact as GRPO

whwh@nrehiew_

It feels like the next breakthrough on a scalable training algorithm is close, likely on top of GRPO with denser credit assignment beyond outcome rewards, but done so with lower bias. - ECHO does this by limiting credit to environment responses - Composer2/Self distillation/OPD

3:00 PM · May 19, 2026 · 8.6K Views
3:02 PM · May 19, 2026 · 759 Views

of course, all existing approaches might end up not being adopted (think MCTS with reasoning) but point still stands

whwh@nrehiew_

Impossible to say for sure obviously, but the fact that so many different groups are doing the same thing along the same axis likely means we are very very close to something with the same impact as GRPO

3:02 PM · May 19, 2026 · 759 Views
3:03 PM · May 19, 2026 · 513 Views