# MiniMax H3 Extender 3070 R2V 480p 60s Clip By Clip

## Summary

`MiniMax H3 Extender` tuned for a local-safe `Ref2VA` minute-long continuation
path on Chris's box. This variant keeps the validated `clip_by_clip` extender
model, uses the lighter local stack, and stretches the chain to `60s` total as
six `10s` clips so each segment can be reviewed and validated before the next
one runs.

## Status

- `best-current-extender-r2v-60s-safe-start`

## Workflow asset

- `workflow.json`

## Built from

- `models/minimax/minimax-h3-extender-ref2va/`
- `optimized/image-to-video/minimax-h3-extender-3070-r2v-480p-clip-by-clip/`

## Key model stack

- `minimax_h3_ref2va_pruned_w4a8_mixed.safetensors`
- `qwen3vl_32b_heretic_minimax_h3_nvfp4.safetensors`
- `minimax_h3_video_vae_int8_convrot.safetensors`
- `minimax_h3_audio_vae_fp32.safetensors`
- `minimax\\minimax_h3_fl2v_lightx2v_turbo_4step_v0.1_comfy.safetensors`

## Main changes

- keeps `clip_by_clip` validation instead of `full_batch`
- keeps the lighter `864x480` local-safe canvas
- keeps `5` steps and the compact local stack
- expands `clips_json` to six `10s` continuation clips for a `60s` total chain
- keeps prompt structure continuity-first so each clip hands off cleanly

## Notes

- This is the minute-long direct successor to the current local-safe extender starter.
- It is intended for progressive validation, not blind unattended full-chain trust.
- Start by validating clip 1, then continue through the chain as each segment holds up.