The PromptPerfect successor. Per-platform AI prompts that actually work.
Paste what you would normally type. We restructure it into an AI-optimised prompt, tailored to Claude, ChatGPT, Gemini or Grok, because each one reads prompts differently.
Polish my prompt5 free rewrites a day. No account needed.
Your polished prompt appears here. Pick a starting point above or paste your own.
Claude reads XML-tagged sections best. ChatGPT follows literal, strict schemas. Gemini wants numbered steps and an explicit output format. Grok wants a stated role and a straight answer on whether to go and look something up. These are vendor-documented differences, so we rewrite for each rather than just tidying your text.
We pull out your goal, constraints, deadline, acceptance criteria and what only you can decide, then rebuild the prompt around them.
We never ask you 10 questions back. Gaps are inferred, and true unknowns are marked [FILL IN: …] so you can complete them in seconds.
Pick a language and the polished prompt comes back in it, headers and all. Fifteen languages, included on every plan.
The extension puts a Polish button straight into Claude, ChatGPT, Gemini and Grok, so you never leave the tab you are working in.
Looking for a successor? ProperPrompt is the cross-model replacement, built for the 2026 model line-up. Read the migration guide.
£7/mo
or £59 a year, which is two months free
£79 once
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+30%
Anthropic reports its prompt improver lifted accuracy by 30% on a multilabel classification eval. Structure alone did that.
Source: Anthropic ↗17.9% → 58.8%
The Chain-of-Thought paper showed structured step-by-step prompting more than tripled GSM8K maths accuracy on PaLM 540B.
Source: Wei et al., 2022 ↗We cite real published results and will not promise your prompts improve by a fixed %. Structure reliably helps; how much depends on your task.
New platforms, new languages, and the extension when it lands in the store. No more than one email a month.
No. The free tier works instantly, with 5 rewrites a day per device. Pro adds unlimited use and history.
Free-tier prompts are processed and discarded. Pro prompt history is opt-in and deletable any time.
Claude gets XML-tagged sections, which is Anthropic's documented best practice. ChatGPT gets a literal strict schema with capitalised headers. Gemini gets numbered steps plus an explicit output-format block. Grok gets a stated role, markdown sections and an explicit line on whether to search for live information. Same intent, four genuinely different rewrites.
Yes. Pick your language from the globe in the top bar and the polished prompt comes back in that language, section headers included. Code, file paths and XML tags stay as they are. It is included on the free tier too.
PromptPerfect shuts down on 1 September 2026. ProperPrompt is built as its cross-model successor: newer models, per-platform tailoring, simpler pricing. The migration guide walks through moving your prompts over.
Frontier models from Anthropic and Moonshot, behind a prompt-engineering template refined on real production prompts. Which one runs depends on your plan, and the template is the part that matters.
Install ProperPrompt as an app.