Ninety seconds, or three hours.

Runtime is not a specification on a feature list, it is the format itself. A ninety-second video and a ninety-minute video are different products consumed by different viewers in different moods, and no tool is good at both by accident. The ceiling therefore tells you which business the tool is in before any other row does.

AutoShorts.ai

AutoShorts.ai's own FAQ puts it plainly: they focus on short-form content, up to 90 seconds in length. That is not a cap you buy past on a higher tier — all three plans make the same length of video, and what the higher plans buy is posting frequency.

Autotube

Autotube renders 3 minutes to 3 hours in a single pass on every plan, from a script of up to 45,000 words written to the intended runtime, with narration generated as one continuous piece.

Not comparable, and that is the point. Neither tool is a substitute for the other at any price.

A publishing strategy is a bet on how a platform pays. Reach and revenue are not the same quantity, and the formats that produce them are different, so the tool you buy is downstream of which one your channel is being built to generate.

AutoShorts.ai

Short-form is a discovery engine. Posted several times a week to three platforms it puts a channel in front of people who have never searched for it, and on a $19 to $69 monthly budget that is a genuinely efficient way to buy attention.

Autotube

Long-form is a retention and monetisation engine. Videos of twenty minutes to several hours accumulate watch time and carry mid-roll advertising, which is the mechanism behind almost every faceless channel that pays for itself.

Both, in sequence. The common pattern is short-form to find an audience and long-form to keep it, and the two tools sit on opposite sides of that.

At a daily cadence, the mechanical work of uploading is most of the work. Automating it is worth more than any single generation feature, because it is the cost that scales with frequency rather than with ambition.

AutoShorts.ai

AutoShorts.ai posts for you: TikTok, YouTube and Instagram, three times a week on Starter, daily on the $39 plan, twice daily on the $69 one. You configure a series once and stop thinking about it, which is exactly what the product promises and exactly what it does.

Autotube

Autotube renders a publish-ready file and stops. There is no scheduler and no publishing integration, so the upload, the title and the description are yours. For a weekly long video that is minutes; at twice a day it would be a job.

Theirs, without qualification. Publishing automation is a whole capability Autotube does not have.

Below a certain length a script is a paragraph, and above it a script is a research project. That threshold is where writing stops being a side effect of the tool and starts being the main event, and it is the reason a short-form generator does not become a long-form one by relaxing a limit.

AutoShorts.ai

AutoShorts.ai writes, narrates and illustrates the short automatically from a series configuration, across 30 languages and a choice of preset visual styles. For ninety seconds that is the right amount of machinery, and adding more would only slow it down.

Autotube

Autotube runs a research pass, writes to the channel's brief and target runtime up to 45,000 words, narrates it, times the visuals to the narration and renders it. Ideation proposes the titles from your channel's winners and your competitors' outliers.

Ours for long-form, theirs for short. The machinery each tool carries is proportionate to the format it was built for.

Very few operators stop at one channel, and the second one is where tooling either scales or starts costing you. The question is whether a plan lets a second channel exist at all, and whether it can sound and look deliberately different from the first.

AutoShorts.ai

One series per plan. A second channel is a second subscription, and the visual style comes from their preset library rather than from a brief you define.

Autotube

Up to ten channel presets on one account, each with its own brief, narration voice, script register and visual style, so a sleep channel and a finance channel stay distinct as both catalogues grow.

Ours, on both counts. Their model is deliberately one-series-simple, which is a feature for a first channel and a ceiling for a portfolio.

Neither tool can be judged from a marketing page, so the exit terms are part of the price. What a company will refund, and what it will let you try, is the clearest signal of how confident it is in the output.

AutoShorts.ai

No refunds. Their FAQ explains the reason — the AI generation costs are incurred immediately — which is a fair and honest account of why, and it still means the money is gone. Their free plan was marked temporarily paused when we checked, so we cannot describe a free route.

Autotube

There is no free plan here either, and no advertised money-back guarantee. What Autotube offers in their place is that nothing is spent unpriced — the exact credit cost of every step is shown before it runs — and that credits you do not spend roll over while you are subscribed instead of refilling away.

Neither, on the exit terms: both are paid decisions you cannot undo. At $19 a month the stakes on their side are much lower, which is the thing to weigh.