Runway vs Pika: Which AI Video Generator Is Cheaper?

Side by side: what Runway and Pika give you for free, what they charge to start, and whether they stamp a watermark. Sisif sits in the third column at $1 a clip.

Runway starts at $15/mo ($12 billed yearly) and Pika at $10/mo ($8/mo billed yearly), 900 credits, as of October 11, 2026. Runway does not state a free-export watermark and Pika does not settle whether free exports carry a watermark. Both sell credits on monthly plans. Sisif runs an open-weights video model, charges $1 a clip, and never adds a watermark.

A short prompt is one 5 s clip at $1. A timeline is a story, $1 per 5 s, priced before you pay.

Compare

$1 a clipNo watermarkNo subscriptionCredits never expire

Sisif · terms
sisif.ai · rendered on our own GPUs
Watermarknone, ever
Credit expirynever
Failed rendercredits returned
Commercial useincluded
Subscriptionnone required
Modelopen weights, our GPUs
Agentspay per clip over the API

1 × clip, 5 s, 540x960$1
Total$1
Same terms on clips, and on every monthly plan.

Runway vs Pika vs Sisif

Feature Runway Pika Sisif
Free tier Free $0, 125 one-time credits runwayml.com/pricing as of October 11, 2026 No monthly credits; packs from $25 (1,500 credits) pika.art/pricing as of October 11, 2026 None. $1 a clip, bought one at a time
Watermark on free output Not stated runwayml.com/pricing as of October 11, 2026 Official page contradicts itself pika.art/pricing as of October 11, 2026 None
Entry paid plan $15/mo ($12 billed yearly) runwayml.com/pricing as of October 11, 2026 $10/mo ($8/mo billed yearly), 900 credits pika.art/pricing as of October 11, 2026 $10/month (120 credits)
Cost per second Gen-4.5: $1.44 per 5 s (Standard); $1.15 per 5 s yearly runwayml.com/pricing as of October 11, 2026 from ~$0.07/s (Wan 3.0, 720p, Starter) pika.art/pricing as of October 11, 2026 12 credits per 5 seconds at 540x960, never more per 5 seconds. 6 credits per second at 720x1280
Credits a short clip uses Gen-4.5 = 60 credits / 5 s runwayml.com/pricing as of October 11, 2026 Wan 3.0, 720p, 5 s = 33 credits pika.art/pricing as of October 11, 2026 12 credits for 5 s at 540x960

Verdict

Pika's entry plan is $10/mo ($8/mo billed yearly) for 900 credits. It has no monthly credits; packs start at $25 for 1,500 credits. Its pricing page contradicts itself on a free-export watermark. Runway's entry plan is $15/mo ($12 billed yearly), with 125 one-time credits on the free plan, and that page does not state a watermark for the free plan. Sisif skips the subscription: $1 a clip, paid once, and no watermark on any export. Figures as of October 11, 2026.

How it works

01

Describe the clip

Write what should happen in 5 seconds: the subject, the style, the camera move. The prompt stays attached to the render, so you can see what made each clip.

02

We render it

An open-weights model on GPUs we operate turns the prompt into a 540x960 portrait clip, most of the time in 2-5 minutes. A failed render returns the credits.

03

Download and publish

One MP4, no watermark, yours to publish anywhere, commercial use included. Pay $1 for the clip; nothing recurring.

Frequently asked questions

Which is cheaper, Runway or Pika?

Runway's entry plan is $15/mo ($12 billed yearly) and Pika's is $10/mo ($8/mo billed yearly), 900 credits, both monthly, as of October 11, 2026. Sisif sells clips one at a time instead: $1 a clip, no subscription, with monthly plans from $10/month.

Do Runway and Pika watermark free videos?

Runway does not state a free-export watermark. Pika does not settle whether free exports carry a watermark. Sisif never adds a watermark, on any plan.

Is there a cheaper alternative to Runway and Pika?

Sisif runs an open-weights video model and charges per clip: $1 per clip, with no subscription. Describe the clip, render it in portrait, download an MP4 with no watermark.

Explore more

Recent renders, with the prompt that made each one 5 s · 540x960 portrait
01Uncover the history of Sorrento as an ancient Roman resort on a half day walking tour of the city centre.
02“Champagne Sandbar Soirée” – Three girlfriends clink flutes on a hidden sandbar; one splashes sparkling water at the camera while the others strike carefree, swimsuit-model poses.
03“Golden-Hour Hammock Stories” – A newlywed bride lounges in a palm-strung hammock, reading a love note aloud while her partner films close-ups of her sun-kissed skin and relaxed smile.
04Sorrento Coast, drone shot, travel, holiday video, sunny day
05beach, sexy, holiday, honeymoon, chill
06A barefoot couple wrapped in a linen sheet, standing on a balcony overlooking turquoise waves at sunrise

Ready to try the no-watermark one?

Every clip is $1. No watermark, no subscription, and the credits you buy never expire.

Render a clip 5 s · 540x960 · no watermark · nothing expires