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Promposer

Compose, improve, and evaluate LLM prompts with test case generation, parallel testing, and insights.

promposer.aiLLM ToolsSep 2025United States1-10Entase, Inc.

A prompt engineering tool that helps compose, improve, and evaluate LLM prompts. It solves the problem of prompt trial-and-error by providing structured testing and evaluation. It targets developers and engineering teams in B2B settings, from startups to enterprises. It is delivered as a SaaS platform with a VS Code extension, supporting multiple AI models and offering privacy mode.

Key features

  • Built-in best practices and templates
  • Generate test cases in seconds
  • Parallel tests with one click
  • Actionable performance insights
  • Works with any top LLM
  • VS Code extension for IDE integration
  • Privacy mode for local processing
  • Bring your own API keys
  • REST API for CI/CD integration
  • Real-time thread review
  • No social media activity within the last 30 days
GTM channels
  • API
  • Docs
ICP
  • Software developers
  • Engineering teams
  • Startups