AI video studio

An AI video generator that does not resell you credits

FlyB drives the video models available on OpenRouter from one screen and charges nothing for the generation itself — you connect your own OpenRouter API key and OpenRouter bills you directly at their prices, which is why every paid plan includes the generator with no cap on how many videos you make.

Try the video studioIncluded on any paid plan. You bring your own OpenRouter key.

What the studio adds around the model

No markup, no cap

FlyB takes no cut and charges no credits for video. The cost is whatever OpenRouter charges for the model, duration and resolution you chose — which is the reason access is unlimited.

Your key never touches our server

The browser talks to OpenRouter directly. The API key, the reference frames and the prompts do not pass through FlyB.

A catalogue read live

The model list comes from your own OpenRouter account, so a newly published model appears without waiting for a FlyB release. Models that cannot generate audio are filtered out.

Frame-perfect cropping

The first and last reference frames are cropped to the exact aspect ratio the chosen model renders, so nothing arrives letterboxed, stretched or off-centre.

AI-written cinematography prompts

A vision model reads your chosen frames and turns a short brief into a production prompt — subject, wardrobe, light, camera movement and the transition between opening and closing frame.

Four anchoring modes

First frame, first and last frame, last frame only, or prompt-only text-to-video with no reference image at all.

Why "unlimited" is honest here

FlyB can offer unlimited video generation because it is not paying for the inference — you are, directly to OpenRouter, at OpenRouter’s prices.

Every other tool in this category buys inference wholesale and resells it as credits, which means a cap is structural: they lose money past it. That is the model this one deliberately does not use.

What you pay FlyB is the subscription, and what it buys is the workflow around the model — the cropping, the prompt writing, the job runner and the history. What you pay OpenRouter is the generation, on their invoice, at their rate.

The part that is actually hard

Most of the quality gap between an AI video that looks accidental and one that looks directed is in the reference frames and the prompt, not in the model.

A reference image that reaches the model at the wrong aspect ratio produces a subject that drifts or crops badly, and no prompt fixes it afterwards. Cropping to the model’s exact output ratio before the call is the least glamorous part of this and the one that changes the result most.

The prompt is the other half. A vision model reads the frames you picked and writes the cinematography brief from what is actually in them, so the description matches the images rather than describing something adjacent. You can also paste a prompt in whole and skip that step.

Sized for where it is going

Output comes back with native audio in vertical, square or widescreen, which is to say sized for Reels, Shorts, TikTok and YouTube rather than needing a second pass.

Generation runs as a background job with live status, so you are not holding a tab open, and finished videos stay in a per-organization history with their logs.

The same account also generates images, on the same bring-your-own-key basis, which is usually what the post around the video needs.

AI video questions

What does a video cost?
Whatever OpenRouter charges for the model, duration and resolution you picked, billed to your own OpenRouter account. FlyB adds no markup and charges no credits for video generation.
Which models can I use?
The video models available on your own OpenRouter account — the catalogue is read live, so a new model appears as soon as OpenRouter publishes it. FlyB filters out the ones that cannot generate audio.
Is it really unlimited?
There is no per-video cap from FlyB on any paid plan, because FlyB is not paying for the generation. Your only limit is what you choose to spend at OpenRouter.
Where does my API key go?
Into your browser, and from there straight to OpenRouter. The key, the reference frames and the prompts never reach a FlyB server.
Is it on the free plan?
No — the video studio is on the paid plans (Plus and Prime). The free plan covers the page and the contact list.

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Bring your own key and see what it makes

The studio is included on every paid plan, with no per-video charge from FlyB.

See the plans