# PostHog: how AI models rank it, September 2026

IT AI Recommendation Index, September 2026 Edition. Named in 26 judge labels across 2 categories by 10 of 12 models. Page: https://it-ai-index.com/vendors/posthog/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Feature flags | 6% | 7 | 12% | 24 |
| Error and crash monitoring | 0% | 13 | 0% | 2 |

## What the models said for it

- "Choose PostHog if you are a startup that wants both analytics and feature flags and wants a massive free tier" (Gemini 3.5 Flash, Feature flags)
- "For absolute zero cost: PostHog — genuinely free with generous limits and full feature set" (Kimi K2, Feature flags)
- "I would recommend PostHog because: 1. Most generous free tier" (MiniMax M2.5, Feature flags)
- "PostHog is a strong choice. They bundle product analytics, session recording, and feature flags into one tool." (Qwen 3.7 Flash, Feature flags)

## And against it

- "PostHog: 2025 outage (~2 hours, 78% US flag failures due to DB overload). Better for smaller teams" (Grok 4.1 Fast, Feature flags)
- "PostHog: Had a feature flag service outage in September 2025 lasting about 1 hour 48 minutes." (MiniMax M2.5, Feature flags)
- "PostHog - Reliability Concerns - Multiple outages in 2025" (Kimi K2, Feature flags)

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, September 2026 Edition, it-ai-index.com.