Votes
2
Comments
1
What this means
+100%Launching in a 100% WoW growing category.
Developer Tools had 143 launches this week vs 0 last.
14Founder Conviction Index: 14 — low signal.
Few of the conviction sub-signals (reputation, velocity, buyer-intent, tagline clarity) are firing yet.
Prediction
Top-5 finish probability
4%
today
Projected end-of-day votes
2range 2–3
Trajectory
stable
Vote pace holding steady.
Speed vs peers
0.7×
11 Developer Infrastructure launches
About
Every LLM cost calculator goes stale the moment a vendor reprices. PromptSpend re-checks its catalog every morning against vendor pages, flags disagreements instead of averaging over them, and shows the source URL and confirmation date on every number. Paste a real prompt or set your scale, compare up to four models side by side, and see the monthly cost — plus the two numbers every calculator gets wrong: compounding chat history and hidden reasoning tokens. Free, no account, open source.
AI Summary
PromptSpend is an open-source LLM cost calculator that updates daily to reflect vendor pricing and provides source URLs for verification. It allows users to compare costs across multiple models while accounting for factors often overlooked, such as chat history and hidden reasoning tokens.
Vote & comment velocity
Performance
Velocity0
Vote pace vs average
Momentum0
Sustained over 6h
Virality0
Spread × engagement
Engagement—
not measured
Signal sources
2 of 6 active- Launch tracking3 readings since we picked it up
- AI analysisDeveloper Infrastructure
- Comment intelligence1 comments, not yet analysed
- Outside discussionnot checked — domain is a storefront or shared
- Revenue signalsno match on this domain
- Editorial scoringbelow the signal threshold for this pass
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.