A video generator charges for seconds, credits or a monthly subscription. Your project needs something different: footage good enough to publish.
That difference can change the budget considerably. A technically successful generation may contain an awkward movement, an inconsistent product or only a few seconds worth keeping. You still spent resources producing the entire clip.
The useful measure is the cost per accepted minute, including rejected attempts, trimming and finishing work. Here is how to calculate it, using published API prices and clearly labeled budgeting examples.
Three different meanings of “one minute”
Before comparing prices, distinguish between three quantities:
- Generated duration: all the footage produced, including alternatives and rejected clips.
- Retained duration: the generated footage actually used in the edit.
- Finished duration: the complete exported video, which may also contain filmed material, still images, titles and graphics.
A one-minute social video might contain only 20 seconds of generated footage. Conversely, assembling 60 seconds of acceptable AI footage might require several minutes of generation.
For the calculations below, a “usable minute” means 60 seconds of distinct generated footage retained in the final edit, without extending it through repetition or slow motion.
What published generation prices tell us
The following examples use public API list prices checked on September 29, 2026. They are generation costs in US dollars before any applicable taxes, editing or other services.
| Model and billing route | Listed generation rate | Calculated cost for 60 generated seconds |
|---|---|---|
| Runway Gen-4 Turbo — Runway API | 5 credits/second; $0.01/credit | $3.00 |
| Runway Gen-4.5 — Runway API | 12 credits/second; $0.01/credit | $7.20 |
| Veo 3.1 Fast, 720p with audio — Gemini API | $0.10/second | $6.00 |
| Veo 3.1 Standard, 720p or 1080p with audio — Gemini API | $0.40/second | $24.00 |
Sources: Runway API pricing and Gemini Developer API pricing. The 60-second figures are our arithmetic, not a promise that each service generates a continuous one-minute clip.
These rows are price examples, not a quality ranking. Audio, resolution, supported inputs and output characteristics differ. Reference assets, additional processing and premium output formats may add charges.
API rates also should not be treated as the effective prices of consumer subscriptions or third-party platforms.
The multiplier that matters: how much footage you keep
Define your retention rate as:
Retention rate = retained generated seconds ÷ total billed generated seconds.
For a workflow with a uniform per-second rate, the corresponding generation cost is:
Cost per usable minute = 60 × price per generated second ÷ retention rate.
At a hypothetical rate of $0.10 per second, the result changes as follows:
| Retained share of generated footage | Generated duration needed for 60 usable seconds | Generation cost |
|---|---|---|
| 100% | 60 seconds | $6 |
| 50% | 120 seconds | $12 |
| 25% | 240 seconds | $24 |
| 10% | 600 seconds | $60 |
These are illustrative scenarios, not measured success rates for a particular model. Actual spending can also be affected by supported clip lengths, minimum charges and input fees.
The denominator includes both rejected clips and discarded portions of otherwise useful clips. Counting only how many generations you accepted can hide the cost of trimming.
A worked example: twelve shots for a one-minute video
Imagine an edit containing twelve five-second shots. For each shot, you generate three eight-second candidates and keep five seconds from the selected result.
- 12 shots × 3 candidates = 36 generated clips.
- 36 clips × 8 seconds = 288 generated seconds.
- 12 retained shots × 5 seconds = 60 usable seconds.
- Retention rate: 60 ÷ 288 = approximately 20.8%.
At an assumed $0.10 per generated second, generation costs $28.80.
This is a budgeting example, not a prediction of how many attempts your project will require. Its purpose is to show why multiplying the final duration by the advertised rate can underestimate spending.
Also distinguish a failed request from a disappointing result. Google’s pricing documentation says its listed Veo generations are charged when successfully generated. A completed clip you decide not to use is not the same as a technical generation failure.
Add the work required to make the video publishable
Generation is one line in the production budget. Depending on the project, you may also need reference images, narration, music, captions, editing, color adjustments or upscaling.
Human time belongs in the calculation too. Writing prompts, reviewing alternatives and fixing continuity can consume more effort than pressing the generation button.
Continuing the hypothetical example:
| Cost item | Illustrative amount |
|---|---|
| 288 generated seconds at $0.10/second | $28.80 |
| Reference assets and additional audio | $5.00 |
| Allocated editing and finishing tools | $3.00 |
| 90 minutes of work valued at $30/hour | $45.00 |
| Total production cost for the finished minute | $81.80 |
The $5, $3 and $30 figures are assumptions chosen for this example, not supplier quotes or industry averages. Replace them with your own costs.
If you do the work yourself, the $45 may not leave your bank account. It still represents time you cannot spend on another task. Keep cash spending and the value of your time visible as separate figures.
Subscriptions require a different calculation
A monthly credit allowance is not a guaranteed quantity of finished video. The number of generated seconds depends on the model and settings; the usable duration depends on what survives your edit.
For a subscription dedicated to video production, a useful monthly measure is:
Effective platform cost per usable minute = subscription and extra-credit spending ÷ usable minutes produced during the same period.
For example, a hypothetical $30 subscription used to produce two usable minutes costs $15 per usable minute before other production expenses. If it produces only 30 usable seconds, the effective cost is $60 per minute.
If the subscription also supports unrelated work, allocate a reasonable share rather than charging its entire price to one video. Do not count included credits again as a separate cash expense.
Unused-credit rules matter as well. Runway’s credit documentation distinguishes between expiring monthly allocations, limited rollover on certain plans and purchased credits that do not expire. Check the rules for the specific plan you are considering.
A cheaper generation can produce a more expensive result
Consider two hypothetical services:
- Service A charges $0.05 per second, but you retain 10% of its generated footage.
- Service B charges $0.10 per second, and you retain 40%.
The generation cost per usable minute is $30 for A and $15 for B. In this example, the service with the higher listed rate is cheaper for the completed task.
These retention rates are invented to illustrate the calculation. They do not describe any named product.
The same principle appears in our analysis of AI pricing and the cost of accepted results: a lower unit price is useful only when the overall workflow delivers value.
Define “usable” before comparing tools
A visually impressive clip can still fail the brief. Before testing generators, write down what makes a shot acceptable.
For a product video, that might include recognizable packaging, consistent colors and accurate proportions. For a narrated explainer, it might mean a clear visual idea with enough space for captions. A character-led sequence may require continuity across several shots.
Then compare tools using the same requirements. Record the billed cost, retained seconds, review time and finishing work for each trial.
Our guide to choosing AI models beyond benchmark rankings explains why testing on representative tasks is more useful than relying on a general leaderboard.
How to control the budget without weakening the edit
Our recommended starting workflow is to plan the final sequence before generating footage.
- Write a shot list: give each shot a purpose, target duration and acceptance criteria.
- Test a difficult shot early: find out whether the essential visual requirement is achievable before producing the rest.
- Set a spending limit per shot: after repeated unsuitable results, change the approach rather than retrying indefinitely.
- Finish selected footage: where the workflow allows it, avoid paying to upscale or polish clips you will discard.
- Use generated motion where it helps: some explanations work well with still images, diagrams or existing footage.
A mixed-format minute can be the right editorial choice. Just report its cost as a finished-video cost rather than pretending all 60 seconds are newly generated motion.
So, what does one usable minute cost?
There is no reliable universal figure. The calculation depends on the billing route, retained share of footage, additional services and production time.
The worked example above turns $28.80 of generation into an $81.80 production cost once its stated assumptions are included. That is an illustration of the method, not a typical market price.
For your next project, record three numbers: total spending, time worked and seconds retained. After a few comparable projects, you will have a budget based on your own production process rather than the most optimistic interpretation of a pricing page.
Sources
Prices checked on September 29, 2026. All amounts are in US dollars. Calculations exclude applicable taxes and currency-conversion costs. Retention rates and production budgets are illustrative assumptions, not measured model benchmarks.