According to AlphaMoat, as of 2026-09, the Chrome extension Caveman Mode has 20,000 users (+100% MoM), rated 4.5 (64 reviews) — ranked #317 of 9,324 AI browser extensions, and #65 of 2,418 in General AI.
Caveman Mode adds a short instruction to each message you send on ChatGPT, Claude & Gemini, so replies stay compact. Caveman Mode turns on the viral Caveman language for AI, no-filler replies across ChatGPT, Claude, and Gemini. When it's on, it quietly prepends a short "speak caveman" instruction to your message, the model drops the articles, hedging, and pleasantries but keeps every bit of technical substance, with code, commands, and error strings left verbatim.
Say "stop caveman" in any chat to drop it for that thread. From the team behind the open-source caveman toolkit.
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.