Cohort 1 · 10 students · 3 fal keys · 1 ElevenLabs key
Control room
Every generation goes through your Worker. Nothing below can be bypassed from a student's browser.
Course ceiling$92.0010 × $9.20 + ElevenLabs
Keys & concurrency $10+ in last 4 wks = 10 slots
| Key | Students | Slots | Top-up / mo | Balance | Kill |
|---|---|---|---|---|---|
| fal A | Aarav, Meera, Zoya, Kabir | 10 | $15 | $27.40 | |
| fal B | Ishaan, Riya, Dev | 10 | $15 | $28.10 | |
| fal C | Ananya, Rohan, Sara | 10 | $15 | $28.55 | |
| ElevenLabs | All · Sessions 7–8 | — | $22 once | 98k cr |
Example balances. Concurrency tier is based on credits bought in the last four weeks — top up each fal key monthly during the course, not once.
Spend vs cap · this session Session 5 · cap $1.31 each
| Student | Key | Nano Banana | Wan 480p | H3 Max | Motion | Spent |
|---|
Counts are takes used / allowed. Students never see dollar figures.
Guide — Raayan Gemini 2.5 Flash · reads one file
| What | Where | Value |
|---|---|---|
| Everything it knows and every rule | guide-knowledge.md | One file in the repo. Edit, redeploy, done. |
| Live context it gets per message | Worker | first name · session · film · step · takes left · storyboard text |
| What it never sees | — | keys, prices, other students, anything outside the portal |
| Limit | Worker | 40 messages per student per session |
| Safety filters | Gemini | BLOCK_MEDIUM_AND_ABOVE, all categories |
| Logs | D1 | every exchange, by student and session — shown here |
| Cost | — | under $3 for the whole course |
Last edit to guide-knowledge.md: 2026-09-10 · first version.
Caps by session hard caps · enforced server-side · two 1-minute films per student
| # | Session | Nano Banana | Seedream | Wan 480p | Wan 720p | H3 Max 480p | H3 Max 768p | Motion 5s | ElevenLabs | Cap |
|---|
Silent shots: Wan 2.2, flat per video up to 10s. Speaking shots: MiniMax H3 Max, native lip-synced dialogue, $0.05/s at 480p and $0.08/s at 768p — capped at two 5-second lines per film. Topaz 1080p master is teacher-triggered only.