Universities are moving generative AI into their courses quickly. To put it into a class, though, students need a tool they can actually use. In HFLUX you describe a scene in a sentence and it carries through to script, storyboard, video and subtitles, so you can see on screen how the result changes when the prompt changes. Nothing needs to be installed: it runs in the browser on classroom PCs and students' laptops.
The way results change with how the prompt is written shows directly on screen, so it can serve as practice material in courses that cover generative AI.
Activities such as describing the same scene in different sentences and comparing the results, or discussing why a result came out differently from what was intended, run inside the class. With 41 AI models across image, video and audio in a single account, students can also put the same sentence into different models and compare. When this leads into an assignment, students can submit the prompts they wrote together with the results.
Lecturers use the same screen to make their own course materials. Course intro videos and concept explainers can be made from script to video in one place, and results come out without working an editing timeline, so no video production experience is needed to start.
No. HFLUX runs on prepaid credits rather than a subscription. Only what you actually generate is deducted from your credits, and a period without classes costs nothing.
Using separate services for image generation, video generation and speech synthesis means a monthly fee for each that keeps running through breaks when nothing is used, with payment and records handled separately for each. HFLUX keeps 41 models in one account. Credits stay valid for one year from the date of payment, so credits left over from one term can be used in the next, and unused remaining credits are refundable. The conditions are in the Terms of Service.
| Pack | Price | Credits |
|---|---|---|
| Starter | $10 | 1,350 credits |
| Pro | $50 | 7,000 credits |
| Premium | $100 | 14,050 credits |
| Business | $300 | 42,300 credits |
| Studio | $500 | 70,550 credits |
| Agency | $700 | 98,800 credits |
| Enterprise | $900 | 127,050 credits |
These are the fixed US dollar prices for payments outside Korea through PayPal. What one class session costs depends on what each student generates and how many times. The per-second credits for each model and the credits per image are all published on the pricing page, so you can work out a term's budget in advance from the number of students and practice runs.
A 100 credit welcome bonus is added on your first top-up. While deciding whether to use it in a course, the smallest pack is enough to check output quality and generation time.
The interface itself is available in 9 languages, and subtitles you make can be translated into 9 languages in the Edit tab.
The interface can be set to Korean, English, Japanese, German, Portuguese, Spanish, French, Simplified Chinese or Traditional Chinese, so international students can practise on a screen in their own language. On the generation side, even if you type in Korean, narration, subtitles and titles can be produced in the language you choose, so language-class materials can be made in several languages from the same script. Generating again with only the language changed gives a version of the same content in another language.
You must be 18 or older to create an account. University students, adult learners and teacher-training participants can practise on their own accounts.
This restriction is stated in the Terms of Service. In university courses and training, participants can sign up individually. Students under 18 cannot have personal accounts, so the class follows along on the teacher's account screen: students write the scene descriptions and the teacher runs the generation, and the class revises the wording together while watching the results. Groups can also write different sentences and compare the results.
There is no need to teach an editing timeline first, so describing scenes and checking the results can happen within one session.
Generation takes some waiting depending on the model and the video length. Overlapping the steps, writing the next scene's sentence while waiting, keeps the time from going idle. Below is a flow split over four sessions.
| Step | What happens on screen | What you end up with |
|---|---|---|
| 1 | Pick a topic and sum up the message in one sentence | A plan |
| 2 | Put in a script, split it into scenes and write a description for each | A storyboard |
| 3 | Generate the scenes and regenerate while revising the wording | Scene videos |
| 4 | Adjust order and length and add subtitles and background sound | The finished video |
The number of sessions and their order are up to each class. In longer activities, steps 2 and 3 can be repeated to make several videos.
Payments outside Korea are processed through PayPal at fixed US dollar prices. Won payments in Korea can be processed with a Korean tax invoice, and quotations and statements of account go through the same channel.
Because each school asks for a different document format, checking which document is needed at the approval stage shortens the process. For questions about documentation, use the in-service contact form or help@h-international.co.kr.
Credits are managed per account. Creating an account per department or team and sharing it is the usual approach.
Generated results stay in the account's library, so another person can pick up the work. If a course runs in several sections or the budget has to be settled per department, separate accounts make usage checks and settlement easier.
The outputs you generate are yours to use. If you upload real photos or video of students to generate from, you need their consent in advance.
That applies whether or not an AI tool is involved. If the consent process is a burden, scenes can be generated without real people. If you plan to post student work on school channels or enter it in competitions, it is worth getting consent for the scope of posting at the same time. Rights are covered in the Terms of Service and the scope of personal data processing in the Privacy Policy.
Each feature is described on ABOUT US.
Outputs are kept in company storage for up to 7 days and then deleted automatically, and they are deleted immediately if you close your account.
For image outputs and speech synthesis outputs, only one representative file per generation is kept for the same period; the rest are not stored on the Company's servers and are saved only on your own PC (locally). With background removal the original never leaves your machine, and subtitles generated in the browser keep the audio on your machine. Retention is not guaranteed, so save the original to your PC as soon as you generate it. The details are in the Privacy Policy.
Can lecturers make their own course materials?
Course intro videos, concept explainers and online lecture intros can be made from script to video on one screen. Results come out without working an editing timeline, so no video production experience is needed to start.
Which AI models does it use?
41 AI models across image, video and audio in a single account. Putting the same sentence into different models and comparing the results is itself practice material for an AI literacy class.