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Linum Lecture Notes to Virtual Instructor Videos, 500+ RMB per Order

Workflow: Every day, receive lecture notes or PPTs sent by educational institutions. First, manually check whether the lecture not

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Key Fields

FIELD STAMPS

IndustryContent / Creator Economy

RegionGlobal（海外）

ScaleSME

ChannelOnline

🔧 Workflow

Every day, receive lecture notes or PPTs sent by educational institutions. First, manually check whether the lecture note structure is clear and if there are any cases or formulas that need supplementing. Then, use a large language model to rewrite the notes into a conversational verbatim script, broken down into 30- to 60-second explanation units. Next, feed the script into the text-to-video tool to generate the tutorial video with a virtual instructor. Finally, use editing software to unify subtitles, backgrounds, and transitions, and output the final cut for client confirmation. The entire workflow is processed per order, keeping the timeframe from material receipt to final delivery within the same day or the next day, looping into the next order upon client confirmation.

🛠 Setup Requirements

Requires a tool account capable of running text-to-video generation, such as Linum or similar open-source models, plus an LLM for script rewriting (Claude or GPT is recommended for polishing the verbatim script). The technical barrier is low—knowing how to write prompts and basic editing is sufficient, but time is needed to practice converting written lecture notes into natural spoken language. Preparation time is about a week: the first two days are spent familiarizing with tool parameters, and the subsequent five days are spent making two sample videos to run through the workflow. For editing, Jianying or CapCut is sufficient; purchasing expensive professional software is unnecessary.

🧰 Toolchain

🔧 Linum
🔧 Jianying
🔧 Claude
🔧 Google Docs

💰 Revenue

① Pay-per-video from educational institutions and instructors (Primary revenue): Clients pay per video at 500 RMB/video × 10 orders/month = monthly income of about 5,000 RMB. According to industry notes, unit prices for batch institutional clients can be negotiated to 800-1000 RMB/video, presenting an opportunity for monthly income to exceed 10,000 RMB, accounting for approximately 100% of monthly revenue (estimated based on internal unit prices and order volumes, merchant-reported and independently unverified); ② Institutional batch bundle orders (Project service fees): Educational institutions place orders of 20-50 videos at a time, priced at 800-1000 RMB/video, offering more stable scheduling. The proportion of such bundle orders in total revenue is not publicly disclosed (merchant-stated, independently unverified); ③ Additional revenue billed by shot count: A single course outline may correspond to 30-50 storyboard shots, with each shot lasting 10-15 seconds (figures provided by the merchant, unverified externally). Portions exceeding the basic video count are charged extra per shot, though the surcharge standard is not published, and its percentage in total revenue is not mentioned; ④ Opportunity item - Multi-language virtual instructor video subscription packages for educational institutions (source notes indicate similar products use 300+ virtual humans and 175+ languages; figures are from the merchant with no independent review available). There is yet no public data on how much revenue subscription packages can contribute.

💸 Cost

Linum API is billed by the second, costing about 5-15 RMB per video; Claude subscription or API costs about $20 per month; Jianying membership is around 30 RMB per month. Total cost is controlled within 30 RMB per order. If using open-source models deployed locally, API call costs can be further compressed to near zero.

⏱ Time Investment

2-3 hours per day, of which 1 hour is spent rewriting scripts and checking lecture notes, 1 hour on generating and editing videos, and the remaining time on replying to clients and sending sample videos. On batch order days, 5 to 8 videos can be handled intensively, requiring 5 to 6 hours of investment in a single day.

🚀 Getting Started

The first step is to register for Linum or a similar text-to-video tool, take a piece of your own lecture notes to produce a sample virtual instructor video, focusing on natural oral delivery and visual stability. Next, post the sample video on Xiaohongshu or Douyin with a clear title like 'Lecture notes to video, delivered same day,' directly accepting retail orders from educational institutions. You can also proactively direct-message online education platforms and small training institutions, attaching sample video links and rate cards.

🔑 Keys to Success

✅ Script rewriting quality determines video watchability; written language must be converted into spoken language
✅ Make sample videos to prove capability before taking orders, lowering the client's decision-making barrier
✅ Bind institutional batch demands, using a single sample video to leverage a series of orders
✅ Keep single video production time under 1 hour to ensure profit margins
✅ Continuously accumulate lecture note rewriting templates for different subjects to increase reusability

⚠️ 风险

⚠️ Lip-syncing of virtual instructors in text-to-video generation may be unnatural, leading to client dissatisfaction and rework
⚠️ Educational institutions are sensitive to copyright and privacy; lecture note content may involve unreleased course materials
⚠️ Tools like Linum may adjust pricing or remove free quotas, causing cost fluctuations
⚠️ Fierce low-price competition exists, with low-price order takers already appearing in the market charging 50 to 100 RMB per order

📌 Real Cases

📌 Educational industry AI manga series batch generation cases show that using AI to convert lecture notes into tutorial videos significantly improves teaching content production efficiency, with bulk orders from educational institutions starting at 500 RMB per video
📌 Leadde AI Video Agent converts learning materials into multi-language professional videos, serving educational institutions and corporate training, with single-project fees ranging from $300 to $1000
📌 An open-source text-to-video model, Linum v2, independently developed by two brothers, is used by individual creators to generate course explanation clips, keeping the production cost per video under 10 RMB

Sources