General-purpose chat
Open-ended. Powerful for brainstorming, writing, and code. You spend 20 minutes building a prompt to get one generic doc. Next launch, you start from scratch.
Comparison
Supabrief vs ChatGPT
ChatGPT is a real tool with real strengths. Here's the honest comparison, from a PM who tried both.
Launch docs generator
Single purpose. Paste a Jira ticket or Slack thread. Pick a tier and an audience. 30 seconds later, four structured launch docs in your voice - ready to share via public link.
Feature comparison
Supabrief vs ChatGPT, line by line.
Capability
ChatGPT
Supabrief
Four launch docs from one paste
Battle card (sales-shaped)
Marketing brief (positioning, SEO, headlines)
Customer changelog (ready to ship)
Launch announcement (PR, LinkedIn, X)
Reads Jira tickets directly
Reads Slack threads directly
Reads merged GitHub PRs
Tone consistency across launches
ChatGPT drifts; you re-explain tone every time.
Public share links (no seat tax)
16 output languages, written natively
Custom prompts
General Q&A and code help
Free for unlimited general use
Supabrief: free for 3 launches, then $29/mo.
Use ChatGPT when
- You need open-ended chat or general writing help.
- You're brainstorming, not shipping a launch.
- The output is for you, not three different audiences.
- You're happy to spend 20 minutes engineering the prompt.
- Tone consistency between launches doesn't matter.
Use Supabrief when
- You're shipping a launch this week.
- Sales, marketing, customers, and the public each need a different doc.
- You want four launch docs in 30 seconds, not 30 minutes.
- Your launches should sound like you, not like generic AI.
- You want to share via public link, not screenshots.
"But ChatGPT does this for free."
It can. You'll spend 20 minutes on a prompt, get one generic doc, and re-do it next launch. Supabrief is the prompt + structure + tier + persona dials + integrations + share link - every launch, in your voice, in 30 seconds. The free tier covers your first 3 launches so you can decide for yourself.
Skip the doc work, ship the launch
One paste away from a ship-ready launch.
Paste a Jira ticket, Slack thread, or merged PR. Get a sales battle card, marketing brief, customer changelog, and launch announcement in 30 seconds. Three launches free, no credit card.