AI Development

AI Development Services: 28 Directions, All Priced Upfront

Built on GPT / Claude / DeepSeek / open-source LLMs — put real AI inside your product

Agents & Conversation Agents / Support bots / Voice / Sales

AI Support Chatbot

On your site, WeChat or Telegram, trained on your material. Where it stops: it answers what it knows and hands off what it doesn't, no inventing. Simple FAQ build from $1,800.

Market $15,000–50,000
$9,800+Save 35%

AI Agent (Tool-Using)

Multi-step reasoning with tool calls, LangGraph under the hood. The part everyone skips is evaluation; without a test set it's guesswork, so the harness gets built in.

Market $50,000–150,000
$34,800+Save 30%

AI Voice Agent / Outbound Calls

ASR, LLM dialog and lifelike TTS chained together. For outbound calling, settle local compliance first — we build and integrate, we don't advise on the legal side.

Market $14,000
$9,800+Save 30%

TG / Discord AI Bot

Moderation, FAQ and companion bots. Runs across many groups at once and can take paid subscriptions. Most useful while a community is still cold.

Market $8,500
$5,800+Save 32%

📈

AI Sales Agent (SDR)

Lead capture, automated outreach and follow-up, intent scoring, CRM write-back. The three most tedious steps run themselves; your team only closes.

Market $28,000
$18,800+Save 33%

🧲

AI Recruiting Screener

JD parsing and matching, resume ranking, AI first-round interviews with auto scoring. Cuts screening time by roughly 70%.

Market $19,000
$12,800+Save 33%

Models & Data RAG / Fine-tuning / Vision / Search

RAG Knowledge Base

How much of your documentation is already out of date? Half of RAG quality is source quality. We build vector search with cited answers, and tidy the corpus while we're in there.

Market $22,000
$14,800+Save 33%

LLM Fine-Tuning (LoRA / Full)

Often you don't need fine-tuning; solid RAG gets there cheaper. When it is the right call, we train Llama / Qwen / DeepSeek on your data and deploy privately, terminology and tone included.

Market $28,000
$18,800+Save 33%

Computer Vision

Recognition, detection, OCR, industrial quality control. We train the model and hand you an API. On factory floors, sample volume and lighting set the ceiling, so we check both first.

Market $40,000+
$28,000+Save 30%

AI Analytics / Smart BI

Ask questions in plain language, get charts and weekly reports back. MySQL, Excel, Lark. Start with whichever report annoys you most.

Market $22,000
$14,800+Save 33%

Workflow Automation

n8n, Dify, Zapier. A form comes in, AI processes it, the CRM or the email updates itself. Kill the one repetitive task you hate most and the effect is immediate.

Market $5,500
$3,800+Save 31%

AI Coding Assistant

Indexes your own codebase: Q&A, PR drafting, test generation. Deployed privately, code never leaves your servers.

Market $34,000
$22,800+Save 33%

🔍

AI Search & Recommendations

Semantic search plus personalised ranking, with recall, re-ranking and telemetry closed in one loop.

Market $30,000
$19,800+Save 34%

📟

Edge / On-Device AI

Model pruning and quantisation, running on Raspberry Pi, Jetson or industrial boxes — inference works offline.

Market $40,000
$26,800+Save 33%

AI Products MVP / SaaS / Apps / Avatars / Video

AI Product MVP

Frontend, backend and billing on LLM APIs, live in four to eight weeks. Demo-ready, and ready to take a real first payment. Just validating? The core demo ships in 12 hours.

Market $25,000–60,000
$17,800+Save 29%

AI Image Generation App

Text-to-image, image-to-image, try-on, product shots. Stable Diffusion or Flux, deployed privately on your own servers, data never leaves. Custom style training only if you need it.

Market $19,000
$12,800+Save 33%

AI Content SaaS

Bulk copy, scripts, multilingual marketing content, with templates, team collaboration and subscriptions. Fast generation isn't the hard part; review and rewrite is, so that's where the work goes.

Market $25,000
$16,800+Save 33%

AI Mobile App

iOS and Android, for chat, voice or image products. We handle store submission and in-app payments too, because more projects stall there than in the code.

Market $50,000+
$34,800+Save 30%

🎭

AI Digital Human / Avatar

Likeness cloning, lip-sync and voice replication; one script becomes one ready video. Built for livestream selling and bulk content.

Market $25,000
$16,800+Save 33%

🎬

AI Video Pipeline

Script to storyboard to finished cut, wired to Sora / Kling / Veo, with auto voice-over, subtitles and batch editing.

Market $30,000
$19,800+Save 34%

🎓

AI Education Coach

Speaking practice, worked explanations, personalised paths, visible progress. Retention is the hard part, so streaks and feedback carry the weight.

Market $24,000
$15,800+Save 34%

🛒

AI E-commerce Assistant

Smart sourcing, listing pages and multilingual publishing, AI shopping guide. Most of the repetitive work for cross-border sellers.

Market $21,000
$13,800+Save 34%

Industry Copilots Legal / Health / Professional

⚖️

AI Contract Review

Clause extraction, risk flagging, version diffing, exportable review notes. Private deployment, contracts never reach third parties.

Market $32,000
$21,800+Save 32%

🩺

AI Pre-Consultation Assistant

Structured intake, report interpretation, follow-up reminders. Boundary stated up front: no diagnosis, no prescriptions, pre-visit prep only.

Market $38,000
$24,800+Save 35%

General Services Websites / Design / Ops

Marketing Website / Landing Page

Responsive, multilingual, baseline SEO. One to two weeks. Fast, but not sloppy.

Market $2,500–8,000
$1,800+Save 28%

UI/UX Product Design

From user flows to high-fidelity Figma. AI products don't share a visual language with ordinary apps, and we've spent enough time there that you won't need to art-direct us.

Market $7,000
$4,800+Save 31%

Managed Ops (Monthly)

Monitoring, patching, backups, small iterations, monthly. One person who knows your stack, so you never re-explain the background.

Market $2,600/mo
$1,800 /moSave 31%

Technical Advisory (Hourly)

Architecture reviews, tech selection, code audits, sitting with you through investor tech due diligence. Billed hourly, and two hours is a perfectly fine engagement.

Market $400/hr
$280 /hrSave 30%

💡 All prices are "from" prices — final fixed quote based on a written scope; no price increases after signing. USD settlement or fiat accepted, milestone payments (30-40-30).

FAQ

FAQ: Pricing, Timeline, Source Ownership & Warranty

Why are you 30% cheaper than market? Is quality compromised?

Two reasons: fully remote with no office or sales-team overhead, and mature codebases across all 28 AI tracks so we never bill you to reinvent the wheel. Core members come from OpenAI, Google and top-tier Chinese tech; every delivery includes internal review plus a 60-day bug-fix warranty.

Is the quote final? Any mid-project price increases?

No. Before signing we break requirements into a feature list written into the contract at a fixed all-in price. New requirements added mid-project are quoted separately and only proceed with your approval.

Who owns the source code and IP?

You do, 100%. Delivery includes complete source code, deployment docs and technical docs, with the GitHub repo created under your own organization.

Payment methods?

USD settlement or bank transfer. Standard schedule is 30-40-30: signing, mid-project demo, acceptance.

How long does delivery take?

Validation demo in as fast as 12 hours; marketing sites 1-2 weeks, AI product MVP 4-8 weeks, private deployment or model training quoted per scope. Every project starts with a written schedule and milestone-based payments.

What is the relationship between kaifaai.app and 51kaifa.app?

Sister sites: kaifaai.app builds AI products only (agents, RAG, fine-tuning, digital humans, AI MVPs — 28 directions with upfront pricing); Web3 full-stack work (chains, wallets, contracts, dApps) lives on 51kaifa.app. The two sites can cross-deliver. kaifaai.app is invested in by Chainfir Capital.

How do you keep AI agent projects from going off the rails?

Every agent project ships with an eval set: accuracy, hallucination rate and refusal boundaries are all quantified, and delivery includes a reproducible quality report. An agent without evals is superstition — we don't ship superstition.

Can you build small tools like an AI mock-interview app?

Yes. A validation demo takes as fast as 12 hours; single small tools are priced in the $3,800-$9,800 band. Start small, scale once it clicks.

How much does AI development outsourcing cost?

It depends on the direction — we publish upfront prices for all 28: AI chatbot from $9,800, RAG knowledge base from $14,800, LLM fine-tuning from $18,800, AI product MVP from $17,800, AI digital human from $16,800, AI mobile app from $34,800, computer vision from $28,000, AI agent (multi-step reasoning plus tool calling) from $34,800. These are starting prices; before signing we turn the scope into a written feature list and quote a fixed price that does not move if the scope does not.

How much does LLM fine-tuning cost?

From $18,800 for LoRA or full fine-tuning on Llama, Qwen or DeepSeek with your own data, deployable on your own infrastructure so it absorbs your terminology and tone. Market average is around $28,000. In most cases you do not need fine-tuning at all — getting RAG right first is far cheaper, and we will tell you which one you actually need.

How long does an AI project take from kickoff to launch?

A validation demo can be ready in as little as 12 hours (landing page, a single AI tool, or an interactive prototype). A full AI product MVP takes 4–8 weeks; an AI agent with a proper evaluation suite usually 6–10 weeks. We demo every Friday, so you never have to chase us for progress.

What if an outsourced project stalls or gets abandoned?

We build the protection into the process: scope is broken into a written feature list before signing with a fixed price that does not change if the scope does not; payment runs 30% at kickoff, 40% at the mid-project demo, 30% on acceptance; and there is a demo every Friday, so a week without progress is visible immediately rather than at the delivery date. Every delivery also carries a 60-day bug warranty.

Who is behind kaifaai.app, and how do I verify they are legitimate?

kaifaai.app is invested in by Chainfir Capital. The core team is 15 engineers from OpenAI, Anthropic, DeepMind, Mistral AI, NVIDIA, Hugging Face, ElevenLabs and Perplexity; 17 delivered projects are published as individual case pages, and all 28 directions carry published prices. Before signing you can run a video due-diligence call (real people on camera), review anonymised past work, or appoint any third party you trust to review the code.

Is kaifaai.app legit? How do I tell a good AI dev shop from a bad one?

Look at what they will put in writing. kaifaai.app publishes fixed prices for all 28 tracks with a fixed-scope, no-add-on guarantee; source code and IP are 100% yours, in a GitHub repo under your own org; payment runs on a 3-4-3 milestone schedule; there is a demo every Friday so a stalled week is visible immediately; and delivery includes 60 days of free bug fixes. First consultation is free, written quote in 48 hours.