What Posthog shipped in 2026

Replay Vision

PostHog introduced Replay Vision, an AI tool that automatically analyzes session recordings by watching video alongside events to extract visual and behavioral cues like hesitation or attention focus.…

PostHog Slack app

PostHog introduced a Slack app in beta that integrates its AI agent into Slack channels and threads. Mentioning @PostHog allows teams to query product data, request code changes, or open draft PRs dir…

MCP analytics

PostHog released a TypeScript SDK (@posthog/mcp) to instrument Model Context Protocol (MCP) servers with analytics, currently in alpha (0.1.x). The SDK tracks tool calls, errors, latency, and agent in…

Pricing change detected for Posthog

Pricing updated for Posthog: - Free: allowance changed from 1 project, 1-year data retention to Usage capped at free tier limits - New tier: Pay-as-you-go ($0/mo) - Removed: Usage-based (Pay-as-you-go…

Pricing change detected for Posthog

Pricing updated for Posthog: - Free: allowance changed from Usage capped at free tier limits to 1 project, 1-year data retention - Scale: now includes 6 projects, 7-year data retention - New tier: Usa…

Distributed tracing

What is AI observability, how it works, and which tools to use

AI observability is a new monitoring category for tracking LLM calls, agent workflows, costs, errors, and output quality, distinct from traditional APM tools. PostHog’s guide details its six-layer arc…

Pricing change detected for Posthog

Pricing updated for Posthog: - Free: allowance changed from 1 project, 1-year data retention, free tier limits to Usage capped at free tier limits - Pay-as-you-go: allowance changed from Pay nothing i…

We put PostHog in Slack and now everyone's an engineer

PostHog released a Slack app in beta that allows users to tag @PostHog with requests to generate code, fix bugs, or analyze product data. The bot creates sandboxed PRs, runs tests, and addresses revie…

In-depth: DuckDB vs SQLite

In-depth: DuckDB vs Postgres

Evaluations

Prompt Management

PostHog Slack app

PostHog introduced a Slack app in beta that integrates its AI agent into Slack channels. The bot can answer product data questions, execute code tasks, and manage follow-ups in-thread, leveraging Post…

Tracing

PostHog introduced Tracing, a distributed tracing solution integrated with OpenTelemetry (OTLP) that allows users to capture and explore traces without vendor-specific SDKs. Currently in alpha, it act…

AI Observability

PostHog introduced AI Observability features to capture traces, generations, and spans from AI and LLM products. The update includes guides for integrating with OpenAI, Cohere, and Anthropic's Claude …

Minimum viable AI observability: what to set up after shipping your first AI feature

PostHog published a guide for small teams on implementing minimal AI observability, focusing on tracing, cost tracking, and error capture as foundational elements. It advises against over-engineering …

Karpathy's Autoresearch found a 3-year-old bug in our query engine (and improved performance by 11%)

PostHog’s AI-driven autoresearch system, inspired by Andrej Karpathy’s method, uncovered a three-year-old bug in their ClickHouse query engine where timestamp filters failed to use primary keys correc…

How autoresearch found a 3-year-old bug in our query engine

PostHog’s AI agent discovered a three-year-old bug in their ClickHouse query engine where timestamp filters failed to use the primary key correctly due to a timezone wrapper, causing 62% more granules…

Pricing change detected for Posthog

Pricing updated for Posthog: - Free: promotion ended (was: No credit card required) - Free: allowance changed from 1 project, 1-year data retention to 1 project, 1-year data retention, free tier limit…