Add Helios (14B minute-scale video generation)#21

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Commits on Mar 12, 2026

Commit a few more docs
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feat: add Helios model with 3-stage pyramid denoising

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fix: Helios grey output — wrong time_shift formula + VAE key mapping

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Add CFG support and VAE frame trimming to Helios pipeline

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Fix pyramid denoising color distortion and improve pipeline robustness

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Fix pyramid color bias with normalized start_point and bfloat16 inputs

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Add Helios diagnostics and engineering notes

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Fix pure noise output: remove start-point normalization, add debug mode

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Fix Helios: correct zero-history timestep embedding and scheduler precision

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Update HELIOS-DIAGNOSTICS.md with Bug 10 and Bug 11

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Mitigate chunk boundary blur with latent-space temporal blend

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Improve chunk blend: mean-corrected to fix brightness shift

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Switch to per-chunk VAE decoding, revert blend default to off

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Implement adaptive anti-drifting for temporal consistency

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Replace anti-drifting noise corruption with history normalization

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Mitigate camera jumps: amplify first chunk + pixel cross-fade

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Fix zoom bug: use float32 for residual connections in transformer blocks

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Disable pixel cross-fade by default to fix chunk boundary quality

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Update diagnostics doc: boundary quality and camera jump issues resolved

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Document resolution sensitivity as upstream model limitation

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Drop first pixel frame from each chunk to remove boundary distortion

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Fix brightness jumps at chunk boundaries with contrast correction

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Upgrade boundary correction to per-channel brightness and contrast matching

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Add spatially-varying brightness correction at chunk boundaries

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Add diagnostic scripts and update HELIOS-DIAGNOSTICS.md

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Helios: Fix imports
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Helios: README.md add poodle example
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Optimize Helios model: remove dead code, fuse ops, add mx.compile

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Fix progress bar total to account for amplified first chunk

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perf(helios): Phase 2 — eliminate sync points and reduce eval boundaries

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fix(helios): compute t=0 projection lazily after weights are loaded

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perf(helios): hoist history astype(bf16) outside denoising loop

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feat(helios): add 'quantize' subcommand for existing MLX models

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docs(helios): update README with quantize subcommand usage

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refactor(helios): align convert CLI with convert_wan pattern

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Helios: Cleanup docs
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Helios: Cleanup folder structure
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Helios: Update README.md
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Helios: Add 41secs of poodles
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Helios: Add links to README.md
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