How to Build a Private ChatGPT Using Open-Source Technology? Download our free white paper.

How La Poste Solutions Business Enhanced Call Center Efficiency with NLP

La Poste Solutions Business called on Lettria's NLP technology to analyze all call transcripts and automatically enrich its Microsoft Dynamics CRM.
Logo La Poste
Problem Statement

Leveraging the power of AI without compromising your data

Chat GPT logs every conversation and personal data you share, and uses it as training data. As a company, you need:

  • A solution deployed on private servers that adapts to your organization’s requirements.
  • To control sensitive information and ensure compliance with data privacy regulations.
  • To supervise training and assign intellectual property rights, both made possible by using open-source technology.

Build your custom AI chatbot

Generate responses tailored for your business needs

By leveraging your data, your custom chatbot understands and responds to your team's queries, respecting your guidelines and processes.

  • Our data science team assists you in building your model from scratch.
  • Get your first ready-to-use prototype in just 15 minutes.
  • Train a custom model on your company data.

Main Features

Discover our main features

A team of data science experts
50+ integrations available
Data cleaning platform and API
Open-source-based technology
A team of expert linguists
Secure architecture
4+ years of expertise in AI and NLP
A personalized onboarding
Real-time data transfer

Connect your AI powered chatbot to 50+ apps

Importing and exporting your data is made easy with Lettria. We are compatible with over 50 apps and your can import files from your databases and APIs.

Focus on what’s most important

Your company’s private language model

Over half of data scientists and engineers say they plan to deploy large language model applications into production in the coming year. With Lettria, it's:


number of prompts

15 min

to get your first prototype

Without Lettria

With ChatGPT

  • No control over where your data is stored
  • No customer or technical support for customization or integration
  • Poor quality data cleaning
  • Expensive



With Lettria

  1. Get improved performance with deep fine-tuning and re-training of RAG models based on your data
  2. Save valuable time with fast customization with the help of our engineers
  3. Build a more reliable model with precise data cleaning on most major formats (.pdf, .html, .xls, and more)
  4. Save money with our cost-effective custom solutions



Frequently Asked Questions

What is the pricing model for Lettria's platform?

Lettria's pricing model is flexible and designed to meet the needs of various project scopes. For first time users, Lettria offers 3000 free credits to test out our API and explore its capabilities. This allows users to get a better understanding of how the platform works and how it can benefit their business before making any commitments.

Independent users can budget their use depending on the size of their models, thanks to Lettria's training features. This means that users can choose the amount of data they want to process and only pay for what they use. This makes Lettria's platform a cost-effective solution for businesses of all sizes.

For commercial use cases, the best approach is to book a call with a member of our sales team. Our team is dedicated to understanding the unique needs of each business and providing tailored solutions that meet those needs. By working with our sales team, businesses can get a better understanding of Lettria's pricing structure and how it can fit into their budget.

How does Lettria ensure the privacy and security of customer data?

Lettria takes privacy and security very seriously. We have implemented industry-standard security measures to ensure that customer data is kept safe and confidential. You can learn more about our security and compliance protocols on our dedicated security and compliance page.

Regarding specific use cases, we always encourage interested parties to get in touch with a member of our team to discuss how Lettria's platform can best meet their unique needs.

Can the Lettria platform analyze conversations in languages other than English?

Absolutely! Lettria's platform is capable of analyzing conversations in multiple languages, including French, Spanish, and English. Our natural language processing technology allows us to identify key themes, phrases, and sentiment from free text feedback in these languages, enabling businesses to gain a comprehensive understanding of customer sentiment across various feedback channels.

Depending on your specific use case, we can also adapt our platform to specific use cases and languages upon request. We understand that language can be a barrier when it comes to analyzing customer feedback, which is why we offer multilingual support.

If you're interested in learning more about how Lettria can support your language needs, we invite you to book a call with one of our experts. We would be more than happy to discuss how our platform can help you better understand your customers' feedback and improve your business outcomes.

How long does it typically take to implement the Lettria platform into an organization's tech stack?

Data import is often handled in a matter of hours, which means that clients can start using the platform almost immediately. The initial text labeling requirements usually take no more than a couple of weeks to finish, which means that businesses can start to see the benefits of the platform quite soon after integration.

In fact, clients tend to see impactful results within three weeks of integrating the Lettria platform. This is because Lettria's platform is designed to be easy to use and integrate with existing systems. Additionally, Lettria's data analysis capabilities are powered by advanced machine learning and natural language processing algorithms, which means that results are delivered quickly and accurately.

Can I create my custom chatbot on my own?

Multiple providers offer self-served services where you can upload your files and build your chatbot on your own.

At Lettria, we believe that designing a custom AI for the first time requires the help of experts. Our team of researchers, linguists and data scientists have built hundreds of models and already know the best practices and the step you need to take to have a model that will outperform what you would have built on your own.

What type of files can I use to train my GPT chatbot?

Here is the list of files you can import to build your first model:

  • Text (.txt, .docx, .odt)
  • PDF (.pdf)
  • Table (.xlsx, .xls, .csv)
  • JSON (.json)
  • Image (.jpg, .jpeg, .png, .webp)
How long does it take to deploy my custom chatbot ?

Once your dataset is uploaded, our team can get back to you after a few hours with the first version.

This version will allow you to do experiments on your chatbot, and our data science team will help you train and deploy versions until you get your own chatbot, that you’ll be able to deploy on in the environment of your choice.

Depending on your need, this can take up to a few weeks.

Build your NLP pipeline for free
Get started ->