Pilot: the first sellers get a free verified listing. No payment is taken on this site.试点期:首批卖家免费获得核验挂牌。本站不收取任何费用。 Apply →立即申请 →
Example · not a real project示例 · 非真实项目 Early revenue早期收入 AI toolsAI 工具

CaptionBridge

AI subtitle translation with a human-style review workflow, for indie video creators going global.面向出海独立视频创作者的 AI 字幕翻译工具,带“像人工校对一样”的审校流程。

Example project — not real. The company, founders and every figure on this page are fictional. It is not seeking investment and no introduction is possible. This page shows the investor-memo format ProofMarket will use for real early-stage projects.示例项目——非真实项目。本页中的公司、创始人及所有数据均为虚构;该项目没有寻求投资,也无法引荐。本页用于展示 ProofMarket 未来为真实早期项目使用的投资备忘录格式。

Snapshot概览

Stage阶段
Early revenue早期收入
Sector领域
AI toolsAI 工具
Since launch上线时长
9 months9 个月
Team团队
2 full-time2 人全职

Headline traction: 核心数据:$3,800 MRR · 164 paying · 9 months月收入 $3,800 · 付费 164 · 上线 9 个月 · Verified by operator运营者已核验

1. Problem1. 要解决的问题

Creators who want to publish in a second language face two bad options: human subtitling at roughly $3–8 per minute, or raw machine translation that mangles slang, names and on-screen context. Built-in platform auto-translation is hard to review or correct at scale, so many creators simply don't localise.想用第二语言发布内容的创作者面临两个糟糕选项:每分钟约 3–8 美元的人工字幕,或会把俚语、人名和画面语境翻错的机器直译。平台自带的自动翻译难以大批量审校修改,所以很多创作者干脆不做本地化。

2. Solution2. 解决方案

Upload a video → CaptionBridge drafts bilingual subtitles using the creator's own glossary (names, catchphrases, product terms) → a side-by-side review editor flags low-confidence lines → export SRT or burned-in video. An optional AI-dub preview is in beta. The glossary is reused on every upload, so quality improves per creator.上传视频 → CaptionBridge 结合创作者自己的术语表(人名、口头禅、产品名)生成双语字幕初稿 → 并排审校编辑器标出低置信度的句子 → 导出 SRT 或烧录字幕的视频。AI 配音预览处于测试阶段。术语表每次上传都会复用,因此每位创作者的翻译质量会越用越好。

3. Market & competition3. 市场与竞争

Investor's view: the target is mid-sized creators (roughly 10k–500k followers) who already earn from overseas audiences, starting with Chinese ↔ English. The space is crowded — general AI dubbing and editing tools, plus the platforms' own translation features — so the bet is on the review workflow and per-creator glossary as a wedge, not on the underlying model. Founder's market-size estimate has not been verified and is not shown.投资人视角:目标用户是已经从海外观众获得收入的中型创作者(约 1 万–50 万粉丝),先从中英互译切入。这个赛道很拥挤——通用 AI 配音/剪辑工具以及平台自带的翻译功能——因此押注点在于审校流程和“每位创作者专属术语表”这一切入口,而不是底层模型。创始人提供的市场规模估算未经核验,故不展示。

4. Traction & verification status4. 数据表现与核验状态

Metric指标Value数值Status / evidence状态 / 证据
MRR (Aug 2026)月经常性收入(2026 年 8 月)$3,800Verified by operator运营者已核验
Stripe dashboard, live screen-shareStripe 后台,实时屏幕共享
Revenue trend收入趋势Jan $900 → Aug $3,8001 月 $900 → 8 月 $3,800Verified by operator运营者已核验
Stripe monthly volume, Jan–Aug 2026Stripe 月度流水,2026 年 1–8 月
Paying customers付费客户164Verified by operator运营者已核验
Stripe customer count only仅核对 Stripe 客户数量
Month-3 retention (paid cohorts Jan–May)第 3 月留存(1–5 月付费批次)58%Partly verified部分核验
Founder cohort sheet, spot-checked against Stripe创始人提供的批次表,抽查比对 Stripe
Gross margin after AI API costs扣除 AI 接口成本后的毛利率≈61%Founder-reported, not verified创始人自报,未核验
Invoices not yet reviewed尚未查看相关账单
Registered users注册用户5,900Founder-reported, not verified创始人自报,未核验
Not checked未核对

Every metric carries a status. “Founder-reported” means ProofMarket has not seen evidence yet — treat it as a claim to check.每项指标都标有状态。“创始人自报”表示 ProofMarket 尚未看到证据——请把它视为待核实的说法。

5. Team5. 团队

Founder A — full-stack engineer, six years on a video platform's media pipeline. Founder B — bilingual creator-operations lead who previously ran a creator channel with ~200k followers. Both full-time since January 2026; identities confirmed by video call. Names and profiles are shared only after an investor is reviewed and an intro is agreed.创始人 A——全栈工程师,曾在视频平台做了六年媒体处理链路。创始人 B——双语创作者运营负责人,曾运营一个约 20 万粉丝的创作者频道。两人自 2026 年 1 月起全职;身份已通过视频通话确认。姓名与履历仅在投资人通过审核、且双方同意引荐后提供。

6. What the founder is looking for6. 创始人在寻找什么

The founder is seeking introductions to reviewed investors, for an indicative range of $150k – $500k to cover about 18 months. Planned use of funds:创始人希望对接经审核的投资人,资金需求参考区间为 15 万 – 50 万美元,计划覆盖约 18 个月。资金计划用途:

Product: dubbing review, team workspaces产品:配音审校、团队协作空间45%
Creator partnerships and growth创作者合作与增长30%
AI compute bufferAI 算力预留15%
Legal, compliance and operations法务、合规与运营10%

This is a founder seeking intros, not an offer. No price, valuation, share of the company or other terms are published or negotiated on ProofMarket; any discussion happens directly between investor and founder, offline, with their own advisers.这只是创始人寻求引荐,不构成要约。ProofMarket 不公布、也不撮合任何价格、估值、股权比例或其他条款;任何讨论均由投资人与创始人在线下、在各自顾问协助下直接进行。

7. Key risks7. 主要风险

  • Platform risk: video platforms keep improving built-in translation and dubbing.平台风险:视频平台持续改进自带的翻译与配音功能。
  • AI API prices and terms can change and directly affect margin.AI 接口价格与条款可能变化,直接影响毛利。
  • Customer concentration: top 10 customers ≈ 22% of MRR (founder-reported).客户集中度:前 10 名客户约占月收入 22%(创始人自报)。
  • Two-person team; key-person risk.两人团队,存在关键人风险。
  • Legal entity, IP ownership and cross-border structure must be checked by the investor's own counsel.法律主体、知识产权归属与跨境架构需由投资人自己的律师核查。

8. Questions an investor should ask8. 投资人应追问的问题

  • Why will a review workflow beat fully automatic dubbing as models improve?随着模型进步,为什么审校流程能胜过全自动配音?
  • What is net revenue retention by cohort, and how is expansion priced?各批次的净收入留存是多少?增购如何定价?
  • Customer acquisition cost by channel — what is repeatable?各渠道获客成本是多少?哪些渠道可复制?
  • Where are the legal entity and the IP held today?目前的法律主体和知识产权归属在哪里?

9. ProofMarket verification note9. ProofMarket 核验说明

Example note (fictional). Via live screen-share the operator reviewed: the Stripe dashboard (monthly volume and MRR, Jan–Aug 2026) and customer count; domain registrar ownership; GitHub organisation ownership; and founder identities on a video call. Not verified: gross margin, registered-user count, market estimates. A verification note covers only the evidence and period it states — it is not an audit, valuation or endorsement.示例说明(虚构)。运营者通过实时屏幕共享查看了:Stripe 后台(2026 年 1–8 月月度流水与 MRR)及客户数量;域名注册商账户所有权;GitHub 组织所有权;并通过视频通话确认创始人身份。未核验:毛利率、注册用户数、市场规模估算。核验说明仅涵盖其写明的证据与时间段,不构成审计、估值或背书。

Shared only after investor review仅在投资人通过审核后提供

  • Founder names, profiles and contact details创始人姓名、履历与联系方式
  • Full metric exports, cohort data and evidence完整数据导出、批次数据与证据
  • Product demo and detailed plan产品演示与详细计划

Process: apply as an investor → operator review → request an intro → founder agrees → manual email introduction → you and the founder talk directly.流程:申请成为投资人 → 运营者审核 → 申请引荐 → 创始人同意 → 人工邮件引荐 → 你与创始人直接沟通。

Apply as investor to request intro申请成为投资人以请求引荐