Your AI Infrastructure

Your Data. Your Model.
Your Weights.

Own your intelligence. Langtrain is the sovereign AI infrastructure for training private models on your proprietary data—without the "Intelligence Tax" of closed APIs.

Zero Data Egress100+ Base ModelsHIPAA · SOC2 ReadyFree to Start

your-ai-system.langtrain

live

Your Knowledge

8 sources connected

📄PDFs

🌐Websites

🎬YouTube

🗄Databases

📊CSV

💼CRM

📝Docs

📋Notes

Langtrain Core

training

Fine-Tuning100%

Knowledge Deepening92%

Context Expansion87%

Agent Builder78%

Deploy Everywhere

6 channels

📱

📸

Instagram

💬

Slack

⚡

API

🌐

Website

💼

CRM

Knowledge → Intelligence → Deployment

Your AI Infrastructure

Your Data. Your Model.
Your Weights.

Own your intelligence. Langtrain is the sovereign AI infrastructure for training private models on your proprietary data—without the "Intelligence Tax" of closed APIs.

Zero Data Egress100+ Base ModelsHIPAA · SOC2 ReadyFree to Start

your-ai-system.langtrain

live

Your Knowledge

8 sources connected

📄PDFs

🌐Websites

🎬YouTube

🗄Databases

📊CSV

💼CRM

📝Docs

📋Notes

Langtrain Core

training

Fine-Tuning100%

Knowledge Deepening92%

Context Expansion87%

Agent Builder78%

Deploy Everywhere

6 channels

📱

📸

Instagram

💬

Slack

⚡

API

🌐

Website

💼

CRM

Knowledge → Intelligence → Deployment

100+Base modelsLlama · Mistral · Phi · Gemma

<38 minAvg fine-tune timeFrom data to deployed model

100%Data stays privateZero egress to third parties

8+Deploy channelsWhatsApp · Slack · API · Web

Fine-tune models from the world's leading AI labs

HuggingFace

Google

Four steps to your own AI.

langtrain — upload knowledge

Step 01

Drop files or connect sources

📄

PDFs & Documents

12 files

🌐

Website Crawl

docs.company.com

🎬

YouTube Transcripts

8 videos

🗄

Database Sync

PostgreSQL

💼

CRM Import

HubSpot

📋

Notes & Markdown

34 notes

First model trained in under 38 minutes.

For Everyone

One platform. Every use case.

personal-knowledge-base

personal

Personal Knowledge Base

2,847

Training Data

Research papers

Book notes

Journal entries

Web bookmarks

Active Agents

🔬

Research Assistant

active

✍️

Writing Coach

active

Notes connected2,847

Knowledge Depth

Teach AI your world.

generic-aishallow

~20%

knowledge depth

Public web data22%

Common knowledge18%

Generic patterns12%

✕Domain knowledge

✕Your context

✕Expert judgment

langtrain-aideep intelligence

94%

knowledge depth

Surface knowledge100%

Domain awareness100%

Deep expertise92%

Institutional memory88%

Expert judgment78%

Your data makes your AI smarter. Knowledge compounds.

Connector Ecosystem

One AI brain. Everywhere you work.

Data Sources

📄PDF

🌐Web

🗄SQL

📊CSV

🎬Video

📋Notion

LTbrain

📱WhatsApp

Deployment Channels

Agent Marketplace

Your AI operating layer. Not just model training.

8 ready-to-deploy agents

Build custom agent

any workflow · any tool

langtrain — support-agent

live

deployed

Support Agent

24/7 intelligent support

1,240Resolved/day

4.9★CSAT

<2sResponse

Live conversation

My order hasn't arrived yet

agent

I've checked your order #4821. It shipped yesterday and will arrive by Thursday. Want tracking details?

Yes please

agent

Tracking: FX849201. Current location: Chicago sorting facility, 2 stops from you.

Ownership & Privacy

Your model. Your infrastructure.

Run everywhere. Your data never touches a third-party server. You own the model weights, the knowledge, and every inference.

terminal — local

your hardware

$langtrain serve --model ./my-model

✓Model loaded: 7B params | 4.2GB VRAM

✓Inference engine: llama.cpp

✓API ready at localhost:8080

→All compute stays on your machine

your-infra.privatesecured

🌐Your Application

private

🤖Langtrain Agent Layer

private

🧠Your Fine-Tuned Model

private

🔒Your Private Infrastructure

private

Zero data egress · All traffic stays internal

Ownership guarantees

Zero data egress to third parties

100% model weight ownership

No vendor lock-in, ever

Full audit trails & logging

Role-based access control

End-to-end encryption

Unlike cloud AI APIs

Your training data, model weights, and inference logs never leave your controlled environment.

HIPAA ReadySOC2 Type IIGDPR CompliantISO 27001Air-gap Support

No data egress. Your weights. Forever.

Why Langtrain

Build an asset. Don't pay a token tax.

Without Langtrain

cloud-apirenting

Monthly API spend↑ $4,200

Data sent to vendor servers

Training data exposed

Token-based billing

Unpredictable costs

No model ownership

Zero residual value

Vendor decides capabilities

No customization

Rate limits & downtime

Availability not yours

You're renting intelligence. Not building an asset.

With Langtrain

langtrainowned

Model asset value↑ compounds

Data stays on your infrastructure

Zero egress, full control

Flat predictable pricing

No token anxiety

100% model weight ownership

Permanent asset

Customized for your domain

94% knowledge depth

Deploy to any channel, anytime

No rate limits

Build an asset. Own it forever.

Feature

Langtrainrecommended

Hosted APIs

DIY Hosting

100% model weight ownership

Zero infrastructure setup

Deploy with one command

Flat, predictable pricing

RLHF & human preference alignment

Built-in AI guardrails (PII + custom)

Base vs fine-tuned playground

Production monitoring (LangVision)

Autonomous agent deployment

Desktop app & CLI for local runs

Get started today

Vendor fees

Months of setup

Free to start · No credit card

Your AI. Your rules.
Own it forever.

Stop renting intelligence. Build your own deeply trained AI model, deploy it as agents, and connect it everywhere.

Train on your private data — locally or in the cloud
Own your model weights, 100%
Deploy agents to WhatsApp, Slack, REST API & more
Free for individuals and open-source teams

How it works

Upload

Your knowledge

Train

Build intelligence

Agents

Create AI workers

Deploy

Launch everywhere

100+

Base models

Llama · Mistral · Phi · Gemma

<38 min

Avg fine-tune time

From raw data to deployed model

100%

Data private

Zero egress, your infra

Build your own AI brain. Train it. Deepen it. Connect it. Deploy it.

Your Data. Your Model.Your Weights.

Four steps to your own AI.

One platform. Every use case.

Personal Knowledge Base

Teach AI your world.

One AI brain. Everywhere you work.

Your AI operating layer. Not just model training.

Your model. Your infrastructure.

Build an asset. Don't pay a token tax.

Your AI. Your rules.Own it forever.

Four steps to your own AI.

One platform. Every use case.

Personal Knowledge Base

Teach AI your world.

One AI brain. Everywhere you work.

Your AI operating layer. Not just model training.

Your model. Your infrastructure.

Build an asset. Don't pay a token tax.

Your AI. Your rules.Own it forever.

Your Data. Your Model.
Your Weights.

Your AI. Your rules.
Own it forever.

Your AI. Your rules.
Own it forever.