Yes, HiStream is an open source research project released under the MIT license (or similar open license) on GitHub. You can download and run it for free.

How fast is HiStream?

HiStream is exceptionally fast. On an NVIDIA H100 GPU, it can generate a frame in about 0.21 seconds, which is roughly 5 frames per second (FPS), approaching real time generation.

Can I use HiStream to make infinite videos?

Yes, its "Anchor Guided Sliding Window" feature allows it to generate video continuously (chunk by chunk) without running out of memory, theoretically allowing for infinite duration.

Who created HiStream?

It was created by a collaboration of researchers from Nanyang Technological University (NTU) and Meta AI, including Haonan Qiu and Shikun Liu.

HiStream

Efficient High-Resolution Video Generation via Redundancy-Eliminated Streaming.

From Meta AI & Nanyang Technological University (Research Collaboration)

Founder: Haonan Qiu, Shikun Liu, and researchers from Meta AI & NTU

Video & Animation

Dec 2025

10K+

Free

Pricing Model

Free

Starting Price

$0/Month

About This AI

HiStream is a breakthrough open source video generation framework designed to solve the “slowness” of high resolution AI video.

Developed by researchers at Meta AI and Nanyang Technological University, it introduces a novel “streaming” architecture that eliminates the redundant calculations found in traditional diffusion models.

By splitting the generation process into low resolution “drafts” and high resolution “refinements” (Dual Resolution Caching) and processing video in efficient chunks, HiStream can generate 1080p video up to 100x faster than competitors like Wan2.1, making real-time high-fidelity video generation feasible for the first time.

AI Art Image To Video Text To Video Video Generator

Pricing

Pricing Model

Free

Starting Price

$0/Month

Key Features

Dual Resolution Caching Drastically speeds up generation by denoising at low resolution first to establish structure, then refining details at high resolution using cached data.
Anchor Guided Sliding Window Allows for the generation of infinitely long videos by processing "chunks" of frames while maintaining a constant memory footprint.
Asymmetric Denoising Optimizes speed by using fewer denoising steps for later frames, relying on the high quality context established by the first frame.
Native 1080p Generation Generates full HD (1920x1088) video directly without needing a separate upscaling step that introduces artifacts.
100x Speedup Achieves inference speeds up to 107.5x faster than baseline models (like Wan2.1), capable of 0.21s per frame on H100 GPUs.
Infinite Streaming Capable of generating long-duration videos without the "memory explosion" typical of standard attention mechanisms.

Pros

Extremely fast (near real-time on high end hardware).
Solves the "quadratic cost" of long videos.
Completely free and open source code.
High visual fidelity without "hallucinated" upscaling artifacts.
backed by top tier research from Meta AI.

Cons

Requires strong technical skills (Python/Linux) to implement.
No user friendly GUI or web app (strictly a developer tool/codebase).
High VRAM requirements for the full 1080p model (H100 recommended for max speed).
Currently focuses on "generation" rather than "editing" existing video.

Best for AI Researchers, Video Engineers, and Developers building real time video generation applications or streaming platforms who need speed without sacrificing 1080p quality.

FAQs

Is HiStream free?
Yes, HiStream is an open source research project released under the MIT license (or similar open license) on GitHub. You can download and run it for free.
How fast is HiStream?
HiStream is exceptionally fast. On an NVIDIA H100 GPU, it can generate a frame in about 0.21 seconds, which is roughly 5 frames per second (FPS), approaching real time generation.
Can I use HiStream to make infinite videos?
Yes, its “Anchor Guided Sliding Window” feature allows it to generate video continuously (chunk by chunk) without running out of memory, theoretically allowing for infinite duration.
Who created HiStream?
It was created by a collaboration of researchers from Nanyang Technological University (NTU) and Meta AI, including Haonan Qiu and Shikun Liu.