CPF: Compact Prompt Format — 30-50% Fewer Tokens, Zero Loss

import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; LLM prompts are full of repeated English grammar. Every "If a module exists, then recommend it. Do NOT reinvent the wheel." bur...

By · · 1 min read

Source: dev.to

import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; LLM prompts are full of repeated English grammar. Every "If a module exists, then recommend it. Do NOT reinvent the wheel." burns tokens on words the model already understands. I built CPF (Compact Prompt Format) to replace that grammar with operators and abbreviations that LLMs decode natively — cutting token costs by 30-50% with zero runtime dependencies. The Problem System prompts, personas, and agent instruction sets get expensive fast. A typical 120-token rule block carries more grammar than meaning — "if", "then", "do not", "otherwise", "and also" — all filler that the model already understands from context. Multiply that across dozens of rules, priorities, tone directives, and scoped behaviors, and you are paying for syntax, not semantics. I wanted a notation that: LLMs already understand without fine-tuning (they process code, math operators, and shorthand every day) Compresses the grammar, not the meaning Ha

Related Posts

Trending on ShareHub

  1. Understanding Modern JavaScript Frameworks in 2026
    by Alex Chen · Feb 12, 2026 · 0 likes
  2. The System Design Primer
    by Sarah Kim · Feb 12, 2026 · 0 likes
  3. Just shipped my first open-source project!
    by Alex Chen · Feb 12, 2026 · 0 likes
  4. OpenAI Blog
    by Sarah Kim · Feb 12, 2026 · 0 likes
  5. Building Accessible Web Applications: A Practical Guide
    by Alex Chen · Feb 12, 2026 · 0 likes
  6. Rapper Lil Poppa dead at 25, days after releasing new music
    Rapper Lil Poppa dead at 25, days after releasing new music
    by Anonymous User · Feb 19, 2026 · 0 likes
  7. write-for-us
    by Volt Raven · Mar 7, 2026 · 0 likes
  8. Before the Coffee Gets Cold: Heartfelt Story of Time Travel and Second Chances
    Before the Coffee Gets Cold: Heartfelt Story of Time Travel and Second Chances
    by Anonymous User · Feb 12, 2026 · 0 likes
    #coffee gets cold #the #time travel
  9. Best DoorDash Promo Code Reddit Finds for Top Discounts
    Best DoorDash Promo Code Reddit Finds for Top Discounts
    by Anonymous User · Feb 12, 2026 · 0 likes
    #doordash #promo #reddit
  10. Premium SEO Services That Boost Rankings & Revenue | VirtualSEO.Expert
    by Anonymous User · Feb 12, 2026 · 0 likes
  11. NBC under fire for commentary about Team USA women's hockey team
    NBC under fire for commentary about Team USA women's hockey team
    by Anonymous User · Feb 18, 2026 · 0 likes
  12. Where to Watch The Nanny: Streaming and Online Viewing Options
    Where to Watch The Nanny: Streaming and Online Viewing Options
    by Anonymous User · Feb 12, 2026 · 0 likes
    #streaming #the nanny #where
  13. How Much Is Kindle Unlimited? Subscription Cost and Plan Details
    How Much Is Kindle Unlimited? Subscription Cost and Plan Details
    by Anonymous User · Feb 12, 2026 · 0 likes
    #kindle unlimited #subscription #unlimited
  14. Russian skater facing backlash for comment about Amber Glenn
    Russian skater facing backlash for comment about Amber Glenn
    by Anonymous User · Feb 18, 2026 · 0 likes
  15. Google News
    Google News
    by Anonymous User · Feb 18, 2026 · 0 likes

Latest on ShareHub

Browse Topics

#artificial intelligence (5111)#deep learning (3221)#pro graphics (2571)#ai (1793)#news (1725)#generative ai (1655)#3d (1638)#gaming (1628)#geforce now (1192)#cloud gaming (1161)

Around the Network