MIRA

AI

world model

SHOW HN2026

12points
1comments
#2,712of 4,366 in 2026
Top 63%of 2026 by points

How HN took it

MixedNo clear lean

4 positive, 4 neutral or asking, 0 mixed, 1 critical, out of 9 comments about the project. Thread score +0.16.

Idea: 2 for, 1 againstPerformance: 2 for, 0 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Impressive coherence and near-infinite rollouts; feels like the real game

    From 3 comments
    • I'm insanely impressed with MIRA! I mean WOW, I've been doing a lot of diffusion world model experiments and I had thought of trying stuff like "visual anchors" to support some…
      blackfireWM on HN
    • Wow! At first, I expected this to be a demonstration of an AI playing rocket league, but I rapidly realized this is actually a model simulating rocket league. Wild! It feels just…
      danking00 on HN
    • Václav here from the team, we're happy to answer questions :) The most surprising part to me is the auto-recovery behavior we mention at the end of the blog post, since any other…
      vvolhejn on HN
  • Auto-recovery after going out of distribution is surprising

    From 1 comment
    • Václav here from the team, we're happy to answer questions :) The most surprising part to me is the auto-recovery behavior we mention at the end of the blog post, since any other…
      vvolhejn on HN
  • Multiplayer four-view input removes need to model other players

    From 2 comments
    • A lot actually, since the model has all information given to it in the four views, it doesn't have to deal with any "theory of mind" of modeling the other players or being…
      vvolhejn on HN
    • this is insane - what’s your thinking on how this improves model grounding and efficiency vs single pov outputs?
      exortaz on HN

Objections

  • Not as a replacement for playing the game

    From 1 comment
    • it would have been easier to just go to FNAC and buy Rocket League like a normal person :)
      _willmanning on HN

Requests

  • Information on training compute

    From 1 comment

Questions

  • Whether the model learned deeper world structure or just the training distribution

    From 1 comment
    • Great work! My question is about what you mentioned at the end - how well do world models operate when out of distribution? In some sense we hope these models learn something…
      shay_ker on HN
  • How multiplayer improves grounding versus single-view outputs

    From 1 comment
    • this is insane - what’s your thinking on how this improves model grounding and efficiency vs single pov outputs?
      exortaz on HN

Alternatives named

  • Playing Rocket League in the actual game

    From 2 comments
    • it would have been easier to just go to FNAC and buy Rocket League like a normal person :)
      _willmanning on HN
    • Is this now the easiest way to play Rocket League on Linux?
      LorenDB on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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