prompten

What it does

Instantly test and compare prompts across multiple AI models with Prompten, your free desktop prompt engineering lab. Stop guessing, start optimizing. Tired of switching between ChatGPT, Claude, and Gemini tabs to compare outputs? Prompten is a free desktop app that lets you test the same prompt across multiple AI models side-by-side, using your own API keys.

Instantly test and compare prompts across multiple AI models with Prompten, your free desktop prompt engineering lab. Stop guessing, start optimizing.

Run your prompts across multiple AI models side-by-side in seconds, using your own API keys for real-time validation. Compare model outputs directly to choose the best performing AI for your specific needs, saving time and resources. Understand which models deliver the best results efficiently, helping you manage API costs and maximize value. A powerful, desktop-first prompt engineering lab designed for speed and ease of use, integrating seamlessly with your existing tools. Prompten has become essential for my workflow. I can now compare different LLMs for my marketing copy in minutes, saving me hours of manual testing and API calls. As a developer, I need to ensure my prompts are efficient…from prompten.io

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  PromptForge2025 · github.com · ▲474

  PromptForge: Open-source AI prompt engineering workbench with systematic evaluation I built PromptForge after getting frustrated with the manual trial-and-error approach to prompt engineering. Most tools are just text editors, but I wanted something that brings software engineering discipline to prompt development. Key technical features: - AI-assisted prompt generation (stop starting from scratch) - Systematic evaluation engine that auto-generates test suites - Multi-model support (Claude, GPT-4, Azure OpenAI) - Go backend with SQLite for performance and simplicity - One-line Docker…

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  PromptPerf2025 · promptperf.dev · ▲139

  Instantly test and compare AI prompts results across models

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  PrompTessor2025 · promptessor.com · ▲125

  After countless hours of solo coding, designing, and iterating, I’m both excited and nervous to share my first-ever product: PrompTessor — now live. As someone who constantly experiments with AI tools like ChatGPT and Midjourney, I often found myself stuck in a loop of trial-and-error. The issue wasn’t always the AI — it was often the prompt itself. That observation became the starting point for PrompTessor. This tool doesn’t just optimize your prompt — it analyzes it. It gives you: - A prompt score - A breakdown of strengths and weaknesses - A fully optimized version of your prompt - And…

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  Prompt Apps – Ready-to-Use Generative AI Apps from Prompt2023 · chatgpt-prompt-apps.com · ▲16

  Even if you're not a Prompt whiz, you can still get top-notch results just like the pros. This Product will handle internally handle boring And Cognitively demanding prompt Engineering. Just pick a service, fill in the keywords, and get the desired result! Open Source , Free , Privacy Friendly , Crowd Source Prompts, No Login Required. You can submit Features(https://prompt-apps.canny.io/feature-requests?sort=top) and Prompts (https://prompt-apps.canny.io/prompt-conversion?sort=top)

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  PromptenchFeb 2026 · promptench.com · ▲5

  Optimize prompts, analyze videos & transform audio with AI

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  Test AI ModelsFeb 2026 · testaimodels.com · ▲23

  Compare AI models side-by-side on same prompt

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

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  Files.md – Open-source alternative to Obsidian▲730

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  Dev tools · May 2026 · github.com