Fine-tune AI

Describe what you want your model to do. Promptify generates training data, fine-tunes multiple variations, evaluates them, and deploys the winner — all automatically.

No credit card required

Deploy in 5 minutes

OpenAI-compatible API

Models Trained

0.0%

Avg Accuracy

Time Saved/User

Happy Teams

How It Works

From idea to production in four steps

No ML expertise required. No data preparation. Just describe what you need and watch the magic happen.

Describe Your Goal

Write what you want your model to do in plain English. Define behavior, tone, and constraints.

Agents Go to Work

Our AI agents generate training data, run fine-tuning jobs, and test multiple model variations.

Review Results

Compare outputs side by side. Test with custom inputs. Inspect detailed evaluation metrics.

Deploy Instantly

Ship your fine-tuned model via API, chat widget, or direct integration. Zero DevOps required.

Features

Everything you need to ship custom AI

Natural Language Model Design

Explain behavior, tone, constraints, and edge cases as a prompt. Promptify converts your description into training signals that shape exactly how your model responds.

goal.txt

I need a customer support bot that:
- Uses a friendly, professional tone
- Escalates to humans for refunds > $100
- Never shares internal pricing data
- Responds in the customer's language

Synthetic Data Generation

Our agents synthesize diverse, high-quality training examples from your description.

Multi-Model Training

Train multiple model variations in parallel across OpenAI, Together AI, and Replicate.

Automated Evaluation

LLM-as-judge scoring compares accuracy, tone, and rule compliance automatically.

One-Click Deployment

Deploy instantly via API, chat widget, or direct integration.

Enterprise Ready

SOC 2 compliant. On-prem deployment available.

Comparison

Before & after Promptify

Feature

Traditional

Promptify

Dataset preparation

Weeks of manual work

Automatic generation

ML expertise required

Yes

Training infrastructure

Set up yourself

Fully managed

Model evaluation

Build custom pipeline

Built-in

Time to production

Months

Minutes

Loved by builders at innovative teams

Join 5,000+ developers shipping custom AI models.

"Promptify let us ship a custom support bot in hours instead of months."

"The synthetic data generation is incredibly smart."

"Finally, a fine-tuning platform that doesn't require a pHd."

"We deployed our model in a single afternoon."

"The automated evaluation metrics are a godsend."

"Game changer for small teams."

"It understood our domain instantly."