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FlowGPT vs Promptly AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Both have a free tier.

FlowGPTCommunity library of AI prompts and roleplay charactersPromptly AIFree browser extension that rewrites your prompt in one click and keeps a reusable prompt library.

Side by side

FactFlowGPTPromptly AI
CategoryRoleplay & Character ChatPrompt Engineering & Libraries
Pricing modelFreemiumFree
Public APINoNo
PlatformsWebChrome Ext, Web
CompanyKaon (formerly FlowGPT)—
Launched2023—
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

FlowGPT

Come here for character roleplay and to see what prompts real people actually run, not for a curated prompt resource you would use at work. The catalogue is unmoderated, much of the front page is adult roleplay, and the original prompt-engineering angle has largely been abandoned.

Pros

  • genuinely large user-generated catalogue with voting, bounties and leaderboards
  • the free tier covers most chat use without a card
  • prompts and characters run in place, so you can test before copying anything out

Cons

  • no quality control, so duplicate and low-effort entries dominate discovery
  • the useful prompt-library function has been crowded out by roleplay characters
  • no API and no export, so nothing you build here moves to another stack
  • the operating company has rebranded and spread across other consumer apps, which puts the site's roadmap in question

Promptly AI

Free, small and does what it says: improve a prompt in place, keep the ones that worked, export the thread afterward. Works across the five major chat sites rather than only ChatGPT. The absence of any business model is the thing to weigh - a free extension with screen access to your AI conversations and no named operator is a trust question, not a feature question.

Pros

  • Works inside ChatGPT, Claude, Gemini, DeepSeek and Copilot rather than one site
  • Free with no account or card required
  • Personal library plus a public curated template library
  • Available on Chrome, Edge and Firefox

Cons

  • No company, country or contact disclosed anywhere
  • No team features, sharing or version history
  • Free with no stated revenue model, which leaves its future uncertain

Which one fits

Choose FlowGPT if you need

  • browsing community-made roleplay characters and persona bots
  • sampling how other people phrase prompts before writing your own
  • casual free access to several models through one interface

Choose Promptly AI if you need

  • People who write the same prompts repeatedly and want them one click away
  • Improving a rough prompt without leaving the chat window
  • Exporting or summarising long conversations

More comparisons

All FlowGPT alternatives →Browse all Roleplay & Character Chat →