Runway Gen-4.5 pricing: credit costs, plans and API rates

Prices and credit rules checked September 13, 2026 against Runway's credit guide, Gen-4.5 guide and developer pricing. The figures below distinguish attempted generations, accepted footage, subscription invoices, and API charges.

Gen-4.5 credit cost by duration

Runway pricing page, captured September 25, 2026. Billing selection, currency and any promotion are shown in the screenshot; recheck the live page and checkout before buying. View official source

Runway's Gen-4.5 guide lists two- to ten-second generations, 720p output, and 24 or 25 fps. Developer pricing establishes the API dollar conversion. Taxes, other operations, and premium output formats are excluded.

How many Gen-4.5 clips fit each plan?

The attempt counts are calculated by dividing the credit allowance by 60 and rounding down. They assume no other credit usage. A set of ten attempts is not necessarily ten finished shots.

Runway's pricing page lists annual equivalents of $12, $28, and $76/month, requiring annual payments of $144, $336, and $912 respectively. The Free tier includes 125 one-time credits with limited model access. Do not assume a free balance makes every paid model available.

Budget example: five finished clips

Suppose you need five accepted five-second shots and allow two attempts for each. That is ten attempts, 50 generated seconds, and 600 base credits.

• Standard web plan: The workload fits the monthly allowance if you spend no credits elsewhere. The monthly invoice is $15; allocating it entirely to these five accepted clips gives $3 per accepted clip.
• Runway API: At $0.01 per credit, the base generation charge is $6, or $1.20 per accepted clip under the same assumption.

This is a calculated budget, not a measured acceptance rate or a like-for-like subscription recommendation. The web app provides an authoring workflow; the API requires an integration. Include your actual editing and implementation needs before choosing on generation cost alone.

What is the minimum upfront purchase?

Runway’s $0.60 API example is a generation charge, not a $0.60 checkout. The developer setup guide requires at least $10 of API funding to get started. In the separate web app, Runway’s credit guide sets a minimum additional-credit purchase of 1,000 credits, available on paid plans rather than Free. Compare the amount you must pay upfront as well as the credits a job consumes.

If all ten attempts are rejected, neither plan has produced five deliverable clips. Record accepted footage separately from the credit balance.

What can increase the charge?

Repeated attempts. A wording change that triggers another generation adds another attempt. Approve the subject, framing, and motion brief before making a batch.

Professional output formats. Runway documents a surcharge of five credits per second for ProRes or PNG sequence output. A five-second generation in one of those formats therefore uses 85 credits at the stated base rate: 5 × (12 + 5). Web access to these formats depends on the plan. HDR profiles have separate developer surcharges; check the exact format before generating.

Avoid paying twice for a required export format

Runway’s web export-format guide currently limits ProRes and PNG sequences to Max, legacy Unlimited and Enterprise. For Gen-4.5, choose the format in Tool Mode before generating. Workflows and Agent return MP4. An existing generation cannot be switched to another output format; Runway says to generate again.

Budget example, not an output test: Ten five-second MP4 attempts use 600 base credits. Repeating all ten as ProRes adds 850 credits, bringing that scenario to 1,450. Choose the required master format before the first run. Regenerated outputs need another review; this arithmetic does not assume they match or pass your brief.

Developer billing remains separate. The API professional-output guide uses an outputFormat parameter; ProRes and PNG add five credits per second, while HDR and high bit-depth formats have other surcharges. Do not transfer a web-plan entitlement or base MP4 quote to an API master deliverable.

Other tools. Image creation, video editing, audio, and upscaling may have their own allowances or charges. The Gen-4.5 base rate is not a quote for a finished, captioned advertisement.

Unused subscription capacity. A subscription can be economical when you use its included workflow and credits. If you only generate one clip in a month, dividing the price by the entire theoretical allowance understates what you spent for that clip.

Does Gen-4.5 generate native 4K?

The current Gen-4.5 help guide lists 720p generation. A plan's 4K upscaling entitlement is a separate operation; it does not make every original Gen-4.5 generation native 4K. Compare downloaded dimensions and visible detail, not only the export label.

For image-to-video, use a clean approved starting frame and describe the motion. For text-to-video, describe both the scene and movement. A useful short test is one subject completing one action with a single camera move. Review it at normal speed before adding more events or longer duration.

Which plan should you choose?

Standard is a reasonable first paid web tier when ten five-second base attempts cover your immediate project and its features meet your needs. Pro adds capacity. Max can make sense for sustained usage or required professional output features. Higher capacity does not prove better creative results for the same generation settings.

Check rollover separately. Runway's Pro-plan guide says monthly included credits reset while purchased additional credits do not expire. Its Max pricing card advertises one-month rollover. Do not apply one tier's rule to every account.

For the complete platform decision, see Runway ML pricing. This article is specifically about the cost of Gen-4.5 output.

Compare the same shot in another workflow

If you already have a reference image, try it in Magic Hour Image-to-Video. If you are starting from a written scene, use Magic Hour Text-to-Video. Review the selected model's displayed cost and export limits; credits are not interchangeable between platforms.

Use the same brief, aspect ratio, intended duration, and acceptance criteria. Compare subject consistency, motion, unwanted changes, total spend, and the editing needed to finish. The image-to-video comparison gives a broader shortlist. Magic Hour publishes this guide; the pricing arithmetic is not an independent quality ranking.

For a broader decision, compare consumer plans in the AI video generator pricing guide and exact developer billing units in the AI video pricing index.