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PromptPerf
Instantly test and compare AI prompts results across models
verified Aug 20, 2026 · HTTP 200
CohortClass of 2025What it is
Instantly test and compare AI prompts results across models
HTTP liveness
1 probe since Aug 20Aug 20Aug 20
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Aug 20, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
1 probe0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2025weekly
4,061 products launched in 2025 · 100% still active
4,061 active0 sunset
Still active
100%
Median lifespan
4.9y