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Products that do what Same AI, fewer tokens. Free forever does

Compress AI prompts, cut token costs by 15%

  1. 1CG

    Hey HN! I recently built Prompt Reducer, an app that makes it easier to compress GPT-4 prompts. The main goal is to reduce the number of tokens in each prompt, thereby reducing the cost of running GPT-4. I figured since @gfodor tweeted about compressing GPT-4. It’s still early, and it does not work perfectly, but I’d love to hear any feedback or suggestions for how to make it faster or more efficient.

    2023 · promptreducer.com

  2. 2

    Count tokens and estimate costs for any AI model

    2024

  3. 3

    Prompt injection and token savings - #1 in benchmarks

    Jul 2026 · constellationgate.ai

  4. 4

    See your LLM token bill before you hit send.

    2025

  5. 5

    Paste your prompt → optimize it → cut token cost instantly.

    Apr 2026 · frukal.com

  6. 6CS

    Hi HN! Token cost has started to become a high topic of concern to all of us. I tried a few (awesome) tools such as rtk, caveman, and the recent (hillarious but effective) ponytail. What they usually do, is in-line token reduction, e.g. try to compress requests / responses as much as possible. But then it hit me (and I’m sure others had similar ideas) - just like we have routers that pick the right model, why not have something that will also narrow down the amount of available tools, skills and mcps based on repo/context? People usually accumulate skills, agents, MCP servers,…

    Jun 2026 · github.com

  7. 7

    Your AI prompts, refined in a keystroke

    May 2026 · tokavy.com

  8. 8

    Count tokens for GPT-4, Claude & more — free

    Jun 2026 · prompt-tokenizer.site

  9. 9CD

    We've set up DeekSeek R1 with a system prompt that attempts to censor the word PRIVATEKEY from its response. If you can get DeepSeek R1 to output that string (not in the reasoning, but in the final response), the system will reveal a private key which contains $1000 USDC. You will have a 50 token limit in the input. We will have a series of contests, sponsored by AI researchers, in order to learn more about prompt engineering and how LLMs interact with real money. Good luck! Edit: The money was claimed! Thanks for playing all. You can still play for fun. Stay tuned for the next one! Stats:…

    2025 · deepbounty.ai

  10. 10

    AI Prompt Optimization and Prompt Library Management.

    May 2026 · ecotoken.dev

  11. 11

    See every token. Fix every prompt. Learn why it works.

    Apr 2026 · tokenlens.live

  12. 12AS

    We explored a novel method to gauge the significance of tokens in prompts given to large language models, without needing direct model access. Essentially, we just did an ablation study on the prompt using cosine similarity of the embeddings as the measure. We got surprisingly promising results when comparing this really simple approach to integrated gradients. Curious to hear thoughts from the community!

    2023 · heatmap.demos.watchful.io

  13. 13

    Token-efficiency linter for LLM prompts and payloads - ritenv/tokensift

    9d ago · github.com

  14. 14

    Fix your AI prompts in 1 click. Stop blaming ai

    Jun 2026 · chromewebstore.google.com

  15. 15

    Count AI tokens and API costs before you ship a prompt

    Jun 2026 · freetokencounter.com

  16. 16

    Know your AI costs before you hit send

    Jun 2026 · calculadoratokens.com

  17. 17

    Offline AI prompt compressor to save up to 50% on tokens

    Aug 2026 · shrinktoken.netlify.app

  18. 18

    150+ ready-to-use AI prompts for ChatGPT, Claude & Grok

    Jul 2026 · payhip.com

  19. 19

    Cut your LLM Token Costs by 65%

    Jul 2026 · supercompress.dev

  20. 20

    Save tokens on every AI prompt. Press hotkey to trigger.

    Jun 2026 · chromewebstore.google.com

  21. 21TT

    I use Claude Code, Codex and Cursor (and sometimes Antigravity) basically every day, and could never tell how much I was actually consuming across all of them. So I built TokenMaxxer. A small CLI reads the files these tools already write locally and puts it all in one dashboard, broken out by tool, model, provider and day. It covers 18 tools now, and you get a profile page with your daily activity, cost estimates, and your top models and tools. There's also a global leaderboard if you want to compete against other TokenMaxxers! I'd love to see if anyone can beat the first place (currently…

    Aug 2026 · tokenmaxxer.xyz

  22. 22

    Every number behind your AI prompt. Free, no signup.

    Apr 2026 · ai-token-counter-wheat.vercel.app

  23. 23TL

    Little tool that I made to understand how (un)reasonable my prompts are.

    Jan 2026 · github.com

  24. 24

    AI builders: show what you spent, built, and earned

    11d ago · tokengod.lol

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