Introducing WaveSpeedAI Rife on WaveSpeedAI

RIFE Video Interpolation: AI-Powered Frame Rate Upscaling for Smoother, More Cinematic Video

RIFE Video Interpolation is now available on WaveSpeedAI, giving developers and creators instant access to one of the most powerful AI frame interpolation models ever built. Whether you need to create buttery-smooth slow-motion effects, upscale choppy 24fps footage to silky 60fps or beyond, or rescue low-frame-rate screen recordings, RIFE delivers professional-grade results through a simple REST API — no GPU setup, no cold starts, no hassle.

Video frame rate has become a critical differentiator in content quality. Audiences expect fluid motion across every platform, from TikTok reels to cinematic productions. RIFE (Real-Time Intermediate Flow Estimation) uses deep learning to synthesize intermediate frames that look indistinguishable from real captured footage, eliminating the stutters, judder, and ghosting that plague traditional interpolation methods.

Try RIFE Video Interpolation on WaveSpeedAI →

How RIFE Video Interpolation Works

RIFE stands for Real-Time Intermediate Flow Estimation, an algorithm originally published at ECCV 2022 that has since become the gold standard for AI video frame interpolation. Unlike traditional methods like optical flow blending or simple frame averaging, RIFE uses a purpose-built neural network called IFNet that estimates intermediate optical flows end-to-end.

Here’s what makes RIFE different from older approaches:

Direct flow estimation: Instead of computing bidirectional optical flows and then blending them (as SuperSloMo does), RIFE directly estimates the intermediate flow from both input frames simultaneously. This produces cleaner, more accurate motion prediction.
Privileged distillation training: RIFE uses a novel training scheme where a “teacher” network with access to the ground-truth intermediate frame guides the student network, resulting in significantly better generalization.
Real-time performance: In benchmarks, RIFE is 4 to 27 times faster than competing methods like SuperSloMo and DAIN while producing superior visual quality — scoring 35.615 PSNR on the Vimeo90K benchmark and 35.282 PSNR on UCF101.

On WaveSpeedAI, the complexity is abstracted away entirely. You upload a video, and the API returns a smoothly interpolated version. The model supports 1 to 4 interpolation steps per frame pair, letting you choose exactly how much smoothness you need — from a subtle 2x frame rate boost to a dramatic 16x increase for ultra-slow-motion effects.

Key Features of RIFE on WaveSpeedAI

Ghost-free frame synthesis — RIFE’s intermediate flow estimation produces clean, artifact-free frames without the ghosting or blurring common in traditional interpolation
Flexible interpolation levels — Choose 1 to 4 interpolation steps to go from subtle smoothing to extreme slow-motion
Universal video compatibility — Works across all content types: live action, animation, screen recordings, drone footage, security cameras, and more
Cloud-based inference with no cold starts — WaveSpeedAI keeps the model warm and ready, so your first request is just as fast as your hundredth
Simple single-parameter API — Just send your video; no complex configuration required
Pay only for what you use — At $0.01 per second of input video, processing a 60-second clip costs just $0.60

Get started with RIFE on WaveSpeedAI →

Best Use Cases for RIFE Video Interpolation

Cinematic Slow-Motion Without a High-Speed Camera

High-speed cameras capable of shooting at 240fps or higher cost thousands of dollars and require specialized lighting. With RIFE, you can shoot at a standard 30fps and interpolate up to 480fps in post-production. The AI-generated frames maintain natural motion blur and temporal consistency, producing slow-motion that rivals dedicated hardware.

Frame Rate Upscaling for Broadcast and Streaming

Content shot at 24fps or 25fps can feel noticeably less smooth on modern 60Hz, 120Hz, or even 240Hz displays. RIFE converts your footage to higher frame rates while preserving the original creative intent — no soap opera effect, just cleaner motion.

Fixing Choppy Screen Recordings and Gameplay Captures

Screen recordings often drop frames, especially on resource-constrained machines. RIFE fills in the gaps, turning a stuttery 15fps screen capture into a smooth 30fps or 60fps video that’s actually watchable for tutorials, product demos, or bug reports.

Animation and Motion Graphics Smoothing

Traditional animation at 12fps or 24fps can feel jerky on modern displays. RIFE interpolates between drawn frames to add fluidity without requiring the animator to produce additional frames — saving hundreds of hours on long-form projects while maintaining the artistic style.

Sports and Action Highlight Reels

Capturing fast-moving sports action at standard frame rates means you lose critical moments between frames. RIFE reconstructs those in-between moments, letting editors create dramatic slow-motion replays from standard footage shot on any camera.

Vintage and Archival Video Restoration

Historical footage, old family videos, and archival content was often captured at low frame rates. RIFE breathes new life into these recordings by interpolating smooth motion that makes the content feel modern while preserving its character.

VR and AR Content Preparation

Virtual and augmented reality applications require frame rates of 90fps or higher to prevent motion sickness. RIFE can upscale existing video content to meet these demanding requirements, making it viable for immersive experiences without re-shooting.

RIFE Pricing and API Access on WaveSpeedAI

Pricing

Metric	Cost
Per second of input video	$0.01
Minimum charge	$0.01 (1 second)

A 30-second video costs $0.30. A 5-minute video costs $3.00. No subscriptions, no monthly minimums — pure pay-per-use.

API Example

Getting started takes just a few lines of code:

import wavespeed

output = wavespeed.run(
    "wavespeed-ai/rife",
    {"video": "https://your-video-url.com/clip.mp4"},
)

print(output["outputs"][0])  # Download URL for interpolated video

Why WaveSpeedAI for Video Interpolation

No cold starts — The model is always warm and ready to process your request
Fast inference — Optimized infrastructure delivers results quickly, even for longer videos
Simple REST API — One endpoint, one parameter, instant results
No GPU required — All processing happens in the cloud; your local machine stays free

Start interpolating videos now →

Tips for Best Results with RIFE Video Interpolation

Start with the highest quality source — RIFE produces the best results from clean, well-lit footage. Heavily compressed or noisy input can introduce artifacts in the interpolated frames.
Match interpolation level to your goal — For general smoothing (24fps → 48fps), a single interpolation step is enough. For slow-motion effects, use 3-4 steps to generate enough frames for dramatic deceleration.
Shoot at the highest native frame rate possible — If you know you’ll want slow-motion, capture at 60fps and then interpolate further. Starting from a higher base gives RIFE more temporal information to work with.
Be mindful of scene cuts — RIFE interpolates between consecutive frames, so hard cuts between scenes can produce brief artifacts. For best results, split your video at scene boundaries before processing, or trim the interpolated result.
Test with a short clip first — Before processing a full-length video, run a 5-10 second sample to verify the output meets your expectations. At $0.01/second, testing is practically free.

Frequently Asked Questions About RIFE Video Interpolation

What is RIFE Video Interpolation?

RIFE (Real-Time Intermediate Flow Estimation) is an AI model that generates smooth intermediate frames between existing video frames, effectively increasing your video’s frame rate for smoother motion, better slow-motion effects, and higher visual quality.

How much does RIFE Video Interpolation cost on WaveSpeedAI?

RIFE costs $0.01 per second of input video with a minimum charge of $0.01. There are no subscriptions or setup fees — you only pay for what you process.

Can I use RIFE Video Interpolation via API?

Yes. WaveSpeedAI provides a REST API for RIFE that requires just a single parameter (your video URL or file). You can integrate it into any application, pipeline, or workflow with a few lines of code.

How does RIFE compare to other frame interpolation methods?

RIFE is 4 to 27 times faster than previous methods like SuperSloMo and DAIN while achieving higher visual quality scores on standard benchmarks (35.615 PSNR on Vimeo90K). It produces cleaner results with fewer ghosting artifacts.

What types of video work best with RIFE?

RIFE works across all content types — live action, animation, screen recordings, drone footage, and more. It performs best on well-lit, stable footage with minimal compression artifacts. Even challenging content like fast action scenes and complex camera movements produce strong results.

Start Creating Smoother Video with RIFE on WaveSpeedAI

Stop settling for choppy, low-frame-rate video. With RIFE Video Interpolation on WaveSpeedAI, professional-quality frame rate upscaling is just an API call away — no GPU setup, no cold starts, and pricing that starts at just one cent per second.

Try RIFE Video Interpolation free on WaveSpeedAI →