If you could pick one · Prompt 7 of 8 · September 2026

A real buyer question from the September 2026 snapshot, asked 3× to each of the three models. 9 answers recorded.

“If you could only pick one session replay tool, which one and why?”

ChatGPT answered 3× this snapshot

If I had to pick just one: PostHog. Why Because it gives you session replay plus the rest of the product analytics stack in one place: Session replay Event/product analytics Funnels, retention, paths Feature flags / experiments Heatmaps in many setups Reasonable developer experience Self-hosted or cloud options If I can only have one tool, I’d rather pick something that does replay well enough *and* connects…

Named across its answers: 1. PostHog2. FullStory3. Hotjar4. LogRocket5. Microsoft Clarity

Verbatim excerpt from one collected ChatGPT answer; formatting flattened, words untouched.

PostHog wins the "pick one" vote with 5 first recommendations versus FullStory's 3, even though FullStory appears in all 9 answers and holds a slightly better average position of 1.8 against PostHog's 1.9. That gap matters because a buyer asking for a single pick is most likely to act on whoever gets named first most often.

AI-generated read of the September 2026 measurements.

Who wins this question

Contested Consensus

All three models name PostHog, FullStory, Hotjar, LogRocket and Microsoft Clarity on this question.

ChatGPT

Claude

Gemini mentioned · first · avg. pos

FullStory 232222111 9/9 · 3× first · #1.8

PostHog 12111135 8/9 · 5× first · #1.9

Hotjar 35443332 8/9 · never first · #3.4

LogRocket 433424 6/9 · never first · #3.3

Microsoft Clarity 15243 5/9 · 1× first · #3

Heap 4 1/9 · never first · #4

Clarity 5 1/9 · never first · #5

Amplitude 5 1/9 · never first · #5

Mixpanel 6 1/9 · never first · #6

Each square is one collected answer; the number is the brand's position in that answer. Lime = the very first recommendation. Unlinked brands were named by the models here but sit outside this category's published top 15 overall. Never mentioned here: Lucky Orange, Mouseflow, Contentsquare, Smartlook, Microsoft Sentinel, Splunk, Exabeam.