PeakLab
Our expertise

Expert LLM agency

GPT, Claude, Mistral

LLM

Our LLM integration services

LLM-powered feature development

We integrate large language models into your existing product, text generation, classification, summarization, extraction, as reliable, user-facing features, not experiments.

Prompt engineering and optimization

We design, test, and iterate on prompts systematically, with evaluation datasets and metrics, so LLM outputs are accurate, consistent, and aligned with your use case.

Model selection and benchmarking

We evaluate GPT-4o, Claude 3.5, Mistral, Llama, and domain-specific models against your actual use case to find the best balance of quality, speed, and cost.

Fine-tuning and model adaptation

For specialized domains where base models fall short, we design fine-tuning datasets and manage the training pipeline to adapt models to your specific vocabulary and tasks.

Why build with LLMs?

01

Human-level language understanding

LLMs understand nuance, context, and intent in a way that rule-based NLP cannot. This enables genuinely useful features, assistants that understand your users, not just match keywords.

02

Broad capability with a single API

A single LLM can summarize, classify, extract, translate, generate, and reason, capabilities that previously required separate specialized models or manual processes.

03

Rapid capability delivery

LLM-powered features can be prototyped in days. The iteration cycle from idea to working demo is dramatically compressed compared to training traditional ML models.

04

Continuously improving models

GPT-4o, Claude 3.5, and Mistral models improve with each release. Applications built on these APIs benefit automatically from model improvements without retraining.

Why trust us with your project?

Multi-provider expertise

We have production experience with OpenAI, Anthropic, Mistral, Cohere, and open-source Llama models, we choose the right model for your use case, not the one we know best.

Evaluation-first methodology

We define quality metrics and build test sets before writing a single prompt. LLM development without evaluation is guesswork, we treat it as engineering.

Reliability and guardrails

We implement output validation, safety filters, fallback logic, and cost caps so your LLM feature behaves predictably and safely under real production load.

User experience focus

We design LLM features from the user's perspective, streaming responses, loading states, error handling, and feedback mechanisms that make AI features feel polished, not experimental.

Our process with LLMs

01

Use case analysis and model selection

We define the task precisely, identify the right model family, and design an evaluation methodology to measure success before writing any code.

02

Prompt design and baseline evaluation

We develop and test prompts against a representative dataset, establishing a quality baseline that guides all subsequent improvements.

03

Integration and hardening

We integrate the LLM into your product with proper API abstraction, error handling, cost monitoring, and output validation.

04

Production launch and feedback loop

We deploy with observability tooling and establish a process for capturing user feedback and continuously improving prompt and model performance.

FAQ: Your questions about LLMs

The money is already on the table.

In 1 hour, discover exactly how much you're losing and how to recover it.

Web development, automation & AI agency

[email protected]
Newsletter

Get our tech and business tips delivered straight to your inbox.

Follow us
Crédit d'Impôt Innovation - PeakLab agréé CII

© PeakLab 2026