# Humanloop

> Humanloop was an enterprise LLM development platform founded in 2020 as a UCL spinout, offering prompt management, evaluations, and observability tools for teams building AI applications. With customers like Duolingo and Gusto, it raised ~$8M and reached ~$3.8M ARR before being acqui-hired by Anthropic in August 2025, after which the platform was sunsetted on September 8, 2025. Its technology and team live on inside Anthropic's enterprise console.

- **Founded:** 2020
- **Headquarters:** London, UK
- **Founders:** Raza Habib (CEO & Co-founder), Peter Hayes (CTO & Co-founder), Jordan Burgess (CPO & Co-founder)
- **Team size:** 14 employees at time of acqui-hire (August 2025)
- **Products:** Prompt Management, LLM Evaluations (Evals), Observability & Monitoring (Flows), Model Proxy
- **Notable:** UCL spinout via Portico Ventures scheme (2020), Y Combinator S20 batch — achieved first paying customers within 3 months, Raza Habib named Forbes 30 Under 30 Technology (2022)

## Products & services

- **Prompt Management** — Git-like version control for prompts with diff views, environment management (staging/production), and a collaborative UI supporting both technical and non-technical users. Introduced the .prompt file format for source control integration.
- **LLM Evaluations (Evals)** — Automated evaluation framework using code checks, LLM-as-judge, or human review. Integrates with CI/CD pipelines to block deploys if quality thresholds are unmet. Includes dataset version control and custom metric support.
- **Observability & Monitoring (Flows)** — End-to-end tracing for multi-step AI applications using OpenTelemetry. Tracks production logs, cost, token usage, and latency. Enables deep-link debugging for specific interactions and spot-check human review workflows.
- **Model Proxy** — Unified proxy supporting 8+ model providers (OpenAI, Anthropic, Google Cloud, AWS Bedrock, Azure) with same-day SLA for new model additions.

## Achievements

- UCL spinout via Portico Ventures scheme (2020)
- Y Combinator S20 batch — achieved first paying customers within 3 months
- Raza Habib named Forbes 30 Under 30 Technology (2022)
- Raised ~$8M total with backing from Index Ventures, Y Combinator, LocalGlobe, and AlbionVC
- Achieved SOC 2 Type II certification (February 2024)
- Gusto case study: AI support agent 'Gus' improved case deflection from 10% to 30% and accuracy 3x
- General Availability launch in November 2024
- ~$3.8M ARR with a 14-person team
- 300+ production deployments and millions of LLM logs processed daily
- Raza Habib named one of most influential Gen AI founders in Europe by Sifted (2025)
- Acqui-hired by Anthropic in August 2025 — team joined to build enterprise AI tools within Anthropic Console

## Latest updates

- **2025-08** — Anthropic acqui-hired Humanloop's co-founders (Raza Habib, Peter Hayes, Jordan Burgess) and ~12 engineers. The Humanloop platform was officially sunsetted on September 8, 2025.
- **2025-01** — Raza Habib named one of the most influential Gen AI founders in Europe by Sifted.
- **2024-11** — General Availability launch announced with $8M total funding disclosed.
- **2024-02** — Achieved SOC 2 Type II certification.

## Links

- Website: https://humanloop.com
- LinkedIn: https://uk.linkedin.com/company/humanloop
- Twitter/X: https://x.com/humanloop
- GitHub: https://github.com/humanloop

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Profile page: https://yespress.io/humanloop
Published by YesPress — https://yespress.io
Last updated: 2026-04-03