Skip to content
XLXL MarketingAgency
Custom AI Business Solutions · Custom AI & application builds

Anything your business needs to be better, we’ll build.

Custom application builds for business efficiency. Anywhere your team is losing time, money, or quality, we build the tool that fixes it — from AI assistants to financial dashboards to operational automations.

5-step
build process
Next.js
modern stack
free
discovery call
What we build

What we build

Custom AI applications

Purpose-built tools wrapping the latest LLMs around your workflow.

CRM optimization

Clean, automate, and enrich the system your revenue runs on.

Marketing automation

Workflows that nurture, route, and convert without manual effort.

Financial dashboards

Live visibility into the numbers that drive decisions.

Communication efficiency

Internal portals, knowledge bases, and customer-facing chatbots.

Operational automations

Kill the repetitive tasks eating your team’s week.

Custom GPTs

Embedded AI assistants trained on your business.

Data pipelines

Reporting layers that turn scattered data into answers.

How it works

The process

01

Discovery

Free call to find where time, money, or quality is leaking.

02

Scope

A fixed plan: what we build, what it costs, when it ships.

03

Build

Modern stack — Next.js, Python, OpenAI/Anthropic APIs.

04

Deploy

Live on Vercel/Cloudflare, integrated with your tools.

05

Iterate

We measure, refine, and extend as your needs grow.

Pricing

What it costs

Model
Project-based or monthly retainer
Discovery call
Free

Bundle & save. Combine any two or more services and you automatically earn a bundle discount.

See the stack →
Why

Why Custom AI

We build the tool, not a slide deck about the tool.

Modern AI stack — OpenAI + Anthropic, not legacy plugins.

Scoped fixed-fee or retainer, your call.

Get started

Tell us what to build

The discovery call is free. Tell us what you’re solving and we’ll come back with a scoped plan — and the bundle discount if you’re combining offerings.

We’ll only use your details to respond. See our privacy policy.

Built on a modern stack

Next.js · Python · OpenAI · Anthropic · Vercel · Cloudflare · custom integrations

FAQ

Custom AI — common questions

What kinds of tools do you build?+

Custom AI applications, CRM optimization tools, marketing automations, financial dashboards, internal portals and knowledge bases, customer-facing chatbots and support routing, operational automations, custom GPTs, and data pipelines. If it removes friction from your business, we can build it.

What stack do you build on?+

Modern, production-grade tooling: Next.js and Python, the OpenAI and Anthropic APIs, and Vercel or Cloudflare for hosting — plus integrations into whatever systems you already run.

How does pricing work?+

Project-based or monthly retainer, depending on scope. The discovery call is free, and you’ll get a fixed plan before any work starts. Combining Custom AI with another XL offering earns an automatic bundle discount.

How do we get started?+

Tell us what to build using the form on this page. We follow a five-step process — Discovery, Scope, Build, Deploy, Iterate — so you always know what’s happening and what it costs.