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IN THE FIELD GUIDE

Essentialisms

essentialisms.com

Essentialisms is an AI engineering and software consulting practice based in Berlin, Germany, offering fractional CTO services, AI engineering, and technical leadership for startups and scale-ups. They specialize in shipping LLM features, RAG systems, AI agents, and provide hands-on embedding with client teams to transfer knowledge and deliver production-ready AI solutions.

THE PRODUCT, BEYOND THE PITCH

Editorially reviewed · Sources checked Oct 5, 2026

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A good fit for

  • Startups and scale-ups seeking hands-on fractional CTO and AI engineering leadership who embed with teams and ship production AI features.
  • Investors and acquirers requiring independent technical due diligence and AI capability audits for seed to growth-stage investments.

Know the limitations

  • Services are provided primarily via monthly retainers starting at €5,000, which may be a barrier for smaller projects or budgets.
  • Availability is limited with bookings currently scheduled from October 2026 through March 2027, indicating potential wait times for new clients.

What you can do

  • Startups and scale-ups needing fractional CTO leadership, AI engineering, and technical leadership to build and ship AI features.
  • Teams with existing products wanting to integrate LLM features, RAG systems, AI agents, or custom ML with senior AI engineering support.

Features

  • LLM integration and prompt engineering with OpenAI, Anthropic, Gemini, and open-source models.
  • RAG (Retrieval-Augmented Generation) systems using pgvector, Pinecone, Weaviate, and Qdrant.
  • AI agents and copilots built with Claude Agent SDK, OpenAI Agents SDK, LangGraph, and MCP.
  • Evaluation and observability pipelines using Braintrust, LangSmith, and Ragas.
  • Machine learning pipelines deployed on cloud platforms such as AWS, GCP, Modal, and Cloudflare.

Integrations

Not confirmed yet.

Platforms & data export

Not confirmed yet.

THE COST FOR YOUR TEAM

Go beyond the starting price.

Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.

Known monthly subtotal

$0.00/month

1 of 1 tools could not be priced with these inputs, so this is not the full cost.

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Tool / planMonthlyPer yearWhat this assumes
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A practical workflow

  1. Clients start with a free 30-minute discovery call to discuss needs and challenges.
  2. A tailored proposal is provided based on the discovery call.
  3. The consultant embeds with the client team and begins shipping AI features from week one.

Based on the sources below. Editorial review does not imply hands-on product testing.

Alternatives to explore

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Candidates based on category and primary feature. Check feature and pricing differences before switching.

getwidget logo

getwidget

✓ Reviewed

GetWidget is an AI development studio founded in 2017 that builds production large language model (LLM) applications, AI agents, retrieval-augmented generation (RAG), voice copilots, and AI-native mobile products. It is also the creator of an open-source Flutter UI Kit with over 4,800 GitHub stars and 23,000 monthly downloads on pub.dev.

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Sources & research

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