Prompt Optimizer — Restructure, Trim Fillers, Save Tokens (GPT / Claude / Gemini / DeepSeek)

Free online Prompt Optimizer for AI coding agents and LLM workflows. Detects filler words, restructures into the 5-section framework (Role / Task / Context / Constraints / Examples / Output), and compares token counts across GPT-4o, Claude Sonnet, Gemini, and DeepSeek V4 — fully client-side.

What is Prompt Optimization?

LLMs are extremely sensitive to prompt quality. The same task, written differently, can yield 10× the result. Prompt optimization covers: (1) Structuring — splitting messy descriptions into Role / Task / Context / Examples / Output format; (2) Trimming — removing filler words; (3) Constraining — adding output format / length / forbidden topics; (4) Anchoring — pinning with 1-2 input/output examples.

Why use dibi8 Prompt Optimizer?

  • 🔒 Fully client-side: all processing in your browser, your prompt never leaves the device, zero logging
  • 🌍 Native 4-language: separate filler dictionaries for English / Chinese / Korean / Vietnamese
  • 📊 Accurate token estimates: uses OpenAI's official tokenizer (4 models compared: GPT-4o / Claude Sonnet / Gemini / DeepSeek V4)
  • Real-time feedback: analyzes as you type with 280ms debounce

The 5-Section Framework (Role / Task / Context / Constraints / Examples / Output)

This is the mainstream prompt engineering framework recommended by both Anthropic and OpenAI. Role sets identity, Task states the goal, Context provides background, Constraints limit scope, Examples anchor output, Output Format standardizes shape.