Humanloop announced that its team was joining Anthropic and that the Humanloop platform would sunset on 8 September 2025, the company said on 13 August 2025.
LLM evaluation startups are being absorbed into frontier labs as talent and eval IP concentrate. Buyers still need migration paths for prompts, datasets and audit history when a SaaS sunsets.
Humanloop remains the directory brand face for this pack; the platform is not an active SaaS after the sunset. Contemporaneous reporting said Anthropic acquired co-founders and most of the team without acquiring Humanloop assets or IP.
ML platform owners with Humanloop history should confirm export completeness and successor tooling — before treating a team join as a completed evaluation-stack migration.