PRODUCT

LangTune RLHF & Alignment

Align your fine-tuned model with human preference. Annotate pairs, train a reward model, and run PPO automatically.

Get Started Free Contact Sales

Preference Annotation

Label preference pairs through a simple UI. Mark which response is better — no ML expertise needed.

Reward Model Training

Langtrain automatically trains a reward model on your labeled pairs using best-in-class RLHF techniques.

PPO Fine-tuning

Run Proximal Policy Optimization to update your LLM weights to maximize the reward signal. Fully automated.

Human Alignment at Scale

LangTune automates the full RLHF pipeline — from annotation to PPO training — saving weeks of ML engineering time.

  • Preference Pair Labeling UI
  • Automated Reward Model
  • PPO & DPO Support
  • Works on Pro Plan
L
Langtrain

The complete platform for training and deploying custom AI models. Built for builders.

Product

  • Features
  • Models
  • Pricing
  • Enterprise
  • Security
  • Showcase

Platforms

  • Langtune
  • Langvision
  • Langtrain Studio
  • EvalsNew
  • Deploy
  • Train

Resources

  • Documentation
  • Quick Start
  • API Reference
  • Python SDK
  • Node SDK
  • Community
  • Research
  • Changelog
  • Status

Company

  • About
  • Blog
  • Careers
  • Press Release
  • Sponsor Us
  • Contact
  • Support
  • Downloads

Legal

  • Terms of Service
  • Privacy Policy
  • Cookie Policy
  • Cancellation & Refund
© 2026 Langtrain. All rights reserved.

Made with ♥ in India

LANGTRAIN