generated: '2026-09-05'
method: probed
source: 'https://video-cn.fly4k.com/api/user/productList'
name: 4K Garden (Diebian AI) plans and pricing
description: >-
  Commercial plans for the Diebian AI super-resolution platform, READ FROM the
  provider's own machine-readable product catalogue endpoint rather than a marketing
  page. GET /api/user/productList answered 200 anonymously on 2026-09-05 and returned
  the four products below verbatim. Prices are in CNY. The platform is credit-metered:
  a purchase converts money into "water crystals" (水晶) which are then spent per minute
  of video super-resolved, at a rate that varies with output frame rate.
api: Diebian AI Super-Resolution API
currency: CNY
billing_model: prepaid-credits
plan_count: 4
plans:
- id: 18
  name: 体验会员
  name_en: Trial membership
  price: 99.00
  currency: CNY
  billing_period: one-time
  included_quota: 15000 credits
  validity: 31 days
  limits:
  - Limit one purchase per person.
  - Purchase confers membership status.
- id: 15
  name: 标准会员
  name_en: Standard membership
  price: 500.00
  currency: CNY
  billing_period: one-time
  included_quota: 50000 credits
  equivalent: approximately 33 minutes of super-resolution at 30fps
  validity: valid for the duration of membership
- id: 16
  name: 标准会员
  name_en: Standard membership (mid tier)
  price: 2500.00
  currency: CNY
  billing_period: one-time
  included_quota: 275000 credits
  bonus: 25000 promotional bonus credits included
  equivalent: approximately 183 minutes of super-resolution at 30fps
- id: 17
  name: 标准会员
  name_en: Standard membership (top tier)
  price: 10000.00
  currency: CNY
  billing_period: one-time
  included_quota: 1200000 credits
  bonus: 200000 promotional bonus credits included
  equivalent: approximately 800 minutes of super-resolution at 30fps
metering:
  source: 'https://video-cn.fly4k.com/api/user/credit-rules'
  probed_status: 200
  credit_rate: 100.0
  rates_by_output_fps:
  - band: low
    max_fps: 30
    rate: 25
  - band: medium
    max_fps: 60
    rate: 50
  - band: high
    min_fps: 61
    rate: 100
enterprise:
  endpoint: /api/user/enterprise-plans
  probed_status: 200
  plan_count: 0
  note: >-
    The enterprise plan catalogue endpoint answers 200 with an empty array, so no
    enterprise tier is published even though the API carries a full enterprise
    membership, invitation and shared-credit surface.
gaps:
- No human-readable pricing page was found; the only public pricing surface is the JSON catalogue endpoint.
- Two adjacent catalogue endpoints (member-plans, credit-packages) return HTTP 500.
- No overage policy is published.