Prompt Engineer 2

The Original AI Tool Builder

Proven stability meets powerful customization. PE 2 offers visual prompt engineering tools and advanced features for building sophisticated AI applications.

Why Choose PE 2?

Battle-tested reliability with powerful customization

Visual Prompt Engineering

Fine-tune AI behavior with visual tools. Control temperature, max tokens, and system prompts.

Modular Architecture

Build complex workflows with reusable components and templates.

Proven Stability

Used by thousands of builders. Reliable, tested, and production-ready.

Advanced Customization

Custom CSS, JavaScript hooks, and API integrations for power users.

Version Control

Track changes, rollback to previous versions, and manage deployments.

Analytics & Monitoring

Track usage, monitor performance, and optimize your tools.

PE 2 vs PE 2.5

Choose the right builder for your needs

PE 2

  • Visual prompt engineering interface
  • Manual configuration & fine-tuning
  • Best for experienced builders
  • Maximum control over details
  • Proven stability & reliability

PE 2.5

  • Conversational AI-assisted building
  • Automatic capability provisioning
  • Best for rapid development
  • Advanced capability system (190+)
  • Cutting-edge features

Perfect For

PE 2 excels at these use cases

AI Chatbots

Build custom chatbots with fine-tuned prompts and behaviors

Complex Workflows

Multi-step processes with conditional logic and branching

Content Generators

Precise control over AI-generated content and formatting

Ready to Build with PE 2?

Join thousands using the trusted and proven AI tool builder