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LLM Integration Services That Put GPT, Claude and Gemini to Work in Your Product

AngleBrackets offers LLM integration services for startups, SaaS companies and growing businesses in the US, UK, Canada and UAE. We connect large language models like GPT, Claude, Gemini and Llama to the app, data and tools you already run, so you get real AI features: summaries, drafting, smart search, data extraction, copilots and agents. Every custom LLM integration comes with guardrails, cost controls and monitoring, and you can switch models without a rebuild. As part of our artificial intelligence development work, we ship one feature to real users first, then grow it.

First LLM feature from $4,000. See pricing →

  • First feature live in 2 to 4 weeks
  • Fixed prices, no surprise invoices
  • Switch models without a rebuild
  • 2 weeks of free support after launch

Book a Free Model Cost Check

Our LLM Integration Services

From one feature in an existing app to a company-wide platform, these are the AI integration solutions we build most. Each one ships with tests, guardrails and a cost dashboard.

AI Integration Consulting
01

AI Integration Consulting

Our AI integration consulting services start with your use cases, data and budget. You get a ranked list of features, the right model for each and a fixed-price plan.

LLM API Integration
02

LLM API Integration

We wire the OpenAI, Anthropic, Gemini, Azure OpenAI or AWS Bedrock APIs into your backend with streaming, retries, rate limits and structured JSON output.

LLM Gateway and Model Routing
03

LLM Gateway and Model Routing

One layer between your app and every model. Route by cost and quality, fall back when a provider is down, and switch models with a config change.

AI Data Integration
04

AI Data Integration

LLM database integration with your SQL, CRM, ERP, documents and files, so the model answers and acts on live business data with the right permissions.

Prompt Engineering and Evaluation
05

Prompt Engineering and Evaluation

Versioned prompts, test sets of real examples and automatic scoring, so quality is measured and doesn't drift after launch.

LLMOps, Monitoring and Cost Control
06

LLMOps, Monitoring and Cost Control

Dashboards for latency, quality and cost per request, with caching, token budgets and alerts.

Security and Compliance Layer
07

Security and Compliance Layer

Personal data redaction, prompt-injection defense, audit logs and data residency for regulated teams.

Fine-Tuning and Open-Source Models
08

Fine-Tuning and Open-Source Models

When prompts and RAG aren't enough, we fine-tune or self-host Llama and Mistral for privacy, speed or lower cost.

LLM Integration Services FAQs

Straight answers to the questions we hear on almost every first call. Don't see yours? Ask us on a free call.

Let's build together

Ready to Put LLMs to Work in Your Product?

Book a free 30-minute call. We'll look at your product, your data and your budget, then show you the fastest safe path from idea to a live AI feature, with the right model and a cost you can predict. Every launch comes with 2 weeks of free support.