Pika H3 Flex: Text to Video
Generate a video with synchronized audio from a text prompt with Pika H3 Flex, a Pika post-trained adapter for MiniMax H3 that lands a finished 1344x768, 124-frame clip in six sampling steps. The adapter runs at strength 1.0 on the int8 MiniMax H3 base with the lcm sampler and Pika's own six-value sigma list, so a full render takes about a minute instead of a 20-step run. Ideal for fast prompt exploration and concept iteration on H3, with no image input to prepare.
Minimum ComfyUI version: 0.44.0
Models and weights
- minimax_h3_audio_vae_fp32.safetensors ·
models/vae/ - minimax_h3_fl2va_pruned_int8_convrot.safetensors ·
models/diffusion_models/ - minimax_h3_video_vae_int8_convrot.safetensors ·
models/vae/ - pika_h3_flex_fl2va_v1_bf16.safetensors ·
models/loras/ - qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors ·
models/text_encoders/
ComfyUI nodes
- Basic Guider
- CLIPLoader
- Create Video
- Float
- Int
- KSamplerSelect
- LoraLoaderModelOnly
- ManualSigmas
- Math Expression
- MiniMax H3 Image to Video
- RandomNoise
- Resolution Selector
- SamplerCustomAdvanced
- Save Video
- UNETLoader
- VAE Decode Audio
- VAEDecode
- VAELoader
ORIGINAL REPOSITORY
Comfy-Org/workflow_templates ↗GitHub activity
- Stars
- 1,445
- Forks
- 270
- Open issues and PRs
- 98
- Repository size
- ~4,915,364 KB
- Default branch
- main
- Created
- Feb 28, 2025
- Repository updated
- Nov 5, 2026
- Last push
- Nov 5, 2026
- Language
- TypeScript
- License
- MIT
Repository-wide figures from GitHub, checked Nov 5, 2026. Stars are endorsements, not a Mega AI Hub quality rating. Repository size is GitHub’s estimate; a ZIP download may differ.
Resource information
- Deployment
- Local
- Publisher
- Comfy Org
- License
- MIT
- Last record update
- Nov 5, 2026