💸 Cheaper
Compresses your prompt aggressively. Kills filler. Keeps constraints. Same answer, fewer tokens, lower bill.
PromptFork is the Chrome overlay for ChatGPT, Claude, and Gemini. One click rewrites your prompt to be cheaper, clearer, or structured — saving up to 60% on tokens. Versions, replay, and analytics included.
Works on the AI tools you already use
fewer tokens on average
prompts forked daily
average rewrite time
users say cheaper answers were as good
PromptFork lives on top of your AI tool. The button shows up when you start typing. Click it, pick a mode, ship a tighter prompt.
Compresses your prompt aggressively. Kills filler. Keeps constraints. Same answer, fewer tokens, lower bill.
Resolves ambiguity. Splits run-on instructions. Names the output format. Better answers on the first try.
Restructures into ROLE / CONTEXT / TASK / OUTPUT. The format that pros use. Now you don't have to remember it.
Every save is versioned. Browse, search, fork. Stop pasting the same prompt into your Notes app.
Run any prompt on Haiku, Sonnet, Opus, GPT-4o side-by-side. Compare cost, latency, output. Pick the winner.
Live tally of $ saved. Projected yearly. Stop guessing — see it.
30-second Chrome install. Free forever. Works on chatgpt.com, claude.ai, gemini.google.com.
The floating ✨ PromptFork button appears above your input the moment you write something.
One click. Rewrite is in your input in ~2 seconds. Original is saved automatically as a version.
Your dashboard shows tokens saved, dollar savings, and projected yearly impact. Replay across models when you want certainty.
"I shaved 50% off my Claude bill in week one. The Cheaper mode is wild — the answers are the same."
"Finally a prompt manager that lives where I write prompts. I'm not pasting back into Notion anymore."
"Replay across models is the killer feature. I now ship the cheapest model that passes my eval — without guessing."
No. The extension only sends the prompt text you explicitly click to rewrite. We never read AI responses, browsing, or anything you don't actively fork.
Anthropic Haiku, Sonnet, Opus, plus OpenAI GPT-4o and GPT-4o-mini. Side-by-side cost, latency, output. Adding Gemini next.
Yes. Rewrites use Claude Haiku (~$0.25/M input). The savings on a Sonnet or GPT-4o downstream call (5–15× the cost) are net huge.
Yes. The backend ships as a Python service. Point the extension at localhost:8787 and nothing leaves your computer.
Python and Node packages: pf.track(), pf.rewrite(), pf.replay(). Drop into your codebase and capture every production prompt with its cost, latency, and version lineage.
One click in the dashboard. Access continues to the end of the period you've paid for.
Sign up, copy your API key, paste it into the extension popup. That's it.
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