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Custom AI Applications

Software That Thinks With You

Off-the-shelf AI answers generic questions. We build agents and applications trained on your business, your documents, your decision logic. Things your competitors can't buy.

3 Products 6-12 Weeks Multi-Agent Systems You Own It Full IP
01

What We Build

01

AI Agents

Autonomous workflows that reason, decide, and act. Multi-agent systems orchestrated around your specific business logic, not generic chatbot templates.

  • Stack Claude, GPT-5, LangChain, LangGraph
  • Memory Persistent knowledge graphs, temporal facts
  • Actions Tool use, API calls, sandboxed execution
  • Tuning Continuous improvement with usage telemetry
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02

Custom Applications

Internal tools, dashboards, and business software built for one purpose: your exact workflow. Not configurable. Purpose-built.

  • Frontend Next.js, React, TypeScript
  • Backend FastAPI, Supabase, PostgreSQL
  • Deploy Railway, Vercel, or your infrastructure
  • Security Auth, RLS, audit logs, SOC-ready
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03

SaaS Products

Full product development from concept to paying customers. We build, launch, and iterate on software products that scale.

  • Auth Clerk, custom auth, SSO
  • Scale Monorepo architecture, edge deployment
  • Growth Analytics, billing, user management
  • Delivery Deployed, monitored, improved monthly
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03

How It Works

Process
01

Discovery & Scoping

We learn your business logic, data sources, and decision workflows. You get a clear proposal with architecture, timeline, and cost before any code is written.

02

Architecture & Design

System design, agent topology, data flow mapping, and UI/UX. Every decision documented and reviewed with your team.

03

Build & Iterate

Sprint-based development with weekly demos. You see real progress, not status reports. Feedback loops baked into every cycle.

04

Launch & Evolve

Deployed to production with monitoring, analytics, and a support plan. Your application improves with every user interaction.

Why Quantum
01

We Ship Products, Not POCs

Three SaaS products in active development. We know what it takes to go from concept to production.

02

Multi-Agent Expertise

LangGraph, Claude Agent SDK, custom orchestration. We build agent systems, not chatbot wrappers.

03

You Own Everything

Full IP transfer. Your code, your data, your deployment. We never hold your business hostage.

04

Right-Sized for Growth

Built for companies outgrowing off-the-shelf tools but not ready for a 20-person engineering team.

05

Production DNA

Security, auth, monitoring, and scale baked in from day one. Not bolted on after the first breach.

04

Engagement Model

Custom work deserves custom pricing. Every proposal includes a fixed scope, timeline, and cost. No hourly billing, no scope creep.

05

Frequently Asked Questions

Custom AI applications typically range from $15,000 to $100,000+ depending on complexity, integrations, and whether it's a one-time build or an ongoing SaaS product. Simple agent workflows start around $15K. Full multi-agent platforms with custom UI run $25K-$75K. We provide detailed proposals with exact costs after a discovery call.
Most projects take 6-12 weeks from kickoff to deployment. Simpler agent workflows can ship in 4-6 weeks. Full SaaS platforms with multi-agent systems typically run 8-16 weeks. We give you a specific timeline in your proposal and stick to it with weekly demos.
Yes. For custom B2B installs, you own the code, the deployment, and the data. For SaaS products, you own the business and we handle the technical infrastructure. We never hold your IP hostage. Full source code transfer is included in every engagement.
We work with Claude, GPT-5, LangChain, LangGraph, and the latest agent frameworks. For knowledge management, we use vector databases, knowledge graphs, and RAG pipelines. The stack is chosen for your specific needs, not our convenience. We're model-agnostic and pick what performs best for each use case.
All projects include a post-launch support period (30-60 days depending on engagement). We also offer ongoing retainer plans for monitoring, optimization, feature expansion, and scaling as your user base grows. Your AI application improves over time, not just at launch.

Ready to build something your competitors can't buy?

A free 30-minute discovery call. We'll map your opportunity, outline an architecture, and give you a clear proposal with costs and timeline.

info@quantumsolutions.tech