Now in public beta · No credit card required

Fine-tune AI
in plain English

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

Deploy in 5 minutes
OpenAI-compatible API
No credit card required
support-bot-v3
01Input goal

# Behavior rules

Friendly, professional tone
Escalate refunds > $100
Never reveal pricing
Reply in customer's language
247 examples generated
0 min
Time to first deploy
0
AI providers supported
0%
Free during beta
0 config
Infrastructure to set up

Process

From idea to production
in four steps.

No ML expertise. No data pipelines. Just describe what you need.

Describe your intent

Write what you need in plain English. Define tone, behavior, constraints, and edge cases. No ML jargon.

Agents generate & train

AI agents synthesize training data, run multi-provider fine-tuning jobs, and test variations — autonomously.

Compare & evaluate

Side-by-side output comparison, custom test inputs, and LLM-judge evaluation metrics in one dashboard.

Deploy in one click

Ship via OpenAI-compatible API, embeddable widget, or direct integrations. Zero DevOps. Zero configuration.

Platform

Everything you need
to ship custom AI.

A complete platform for AI fine-tuning. From intent to production in minutes, not months.

No ML expertise

Natural Language Training

Describe model behavior in plain English. We convert intent into precision training signals.

1,200+ examples/run

Synthetic Data Engine

Generate thousands of diverse, high-quality training examples from a single paragraph.

3 providers

Multi-Provider Training

Train across OpenAI, Together AI, and Replicate in parallel. Pick the winner automatically.

Built-in metrics

Automated Evaluation

LLM-as-judge scoring measures accuracy, tone adherence, and rule compliance without test suites.

5 min to prod

Instant Deployment

One-click deploy via OpenAI-compatible REST API or embeddable widget. Production-ready in minutes.

BYOK

Bring Your Own Keys

Connect your own OpenAI, Together AI, or Replicate API keys. Your data stays under your control.

Before & After

The old way vs.
Promptify.

AreaTraditionalPromptify ✦
Dataset preparation
Weeks of manual work
Automatic generation
ML expertise required
Senior ML Engineer
None
Training infrastructure
Set up & maintain yourself
Fully managed
Model evaluation
Build custom pipeline
Built-in LLM judge
Time to production
Months
Minutes
Cost
~$50–200k / year eng time
Free during beta

Ready to build
your custom AI?

We're in public beta — free to use, no credit card required. Ship your first model today.

No credit card required
Deploy in 5 minutes
OpenAI-compatible API