Calculate your cost
AI Observability
Generations, spans, and traces are captured as regular PostHog events and billed like them – no per-seat pricing, and no markup on the tokens you already pay your model provider for.
AllocationUnit priceYour selectionSubtotal
First 100k events/mo100,000Free$0
100k-150k0$0.000350/event$0
150k-250k0$0.000175/event$0
250k-500k0$0.000100/event$0
500k-1 million0$0.000080/event$0
1 million-10 million0$0.000070/event$0
10 million-50 million0$0.000065/event$0
50 million+0$0.000060/event$0
events/mo
First 100,000 events free – every month!
Estimated monthly cost
$0PostHog vs...
An honest comparison, tl;dr:
Choose a competitor if...
- You want an AI gateway in the request pathOthers can proxy your calls for caching, fallbacks, and rate limits – PostHog only observes
- You only want LLM ops metricsand will never need the product context – retention, funnels, replays – around them
- You don't want to use an open source product
Go with if...
- Agents can act on your LLM traces, costs, and errors – the context that makes your agent self-driving
- You want to understand LLM costs on a per user basisin addition to other axes
- You want to combine AI Observability with other toolslike Error Tracking and Session Replay
- You need easy regulatory compliance for HIPAA and GDPR
