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    3. Humanloop

    Humanloop

    To enable the safe and rapid adoption of AI by providing the first integrated development environment (IDE) for Large Language Models (LLMs).

    Visit Website

    At a Glance

    1Tool Listed
    2Products
    32Tool Views
    6Capabilities
    Discussions
    London, United KingdomHeadquarters
    2020Est.
    18Employees
    $7.91MRaised
    Focus Areas
    Performance Metrics
    UX Design
    Automated Testing
    Latest News
    Anthropic acquires Humanloop team to bolster enterprise AI strategyAug 13, 2025
    Humanloop moves to General Availability, setting standards for AI engineeringMay 1, 2024
    Markets
    • Enterprise AI teams
    • AI Startups
    • Product Teams building LLM apps

    AI Tools by Humanloop

    (1)
    View Humanloop
    Humanloop tool icon

    Humanloop

    LLM Evaluation and Prompt Management

    Performance MetricsUX DesignAutomated Testing

    Discussions

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    Latest News

    08/13/2025

    Anthropic acquires Humanloop team to bolster enterprise AI strategy

    techcrunch.com
    05/01/2024

    Humanloop moves to General Availability, setting standards for AI engineering

    humanloop.com
    07/28/2022

    Humanloop raises $2.6M from Index Ventures to help humans teach AI algorithms

    tech.eu
    08/28/2020

    UCL Technology Fund invests in AI spinout Humanloop

    ucl.ac.uk

    Products & Services

    2
    Humanloop Platform
    2020

    An end-to-end platform for prompt engineering, evaluation, and observability of LLM applications.

    Humanloop SDK

    Developer tools to integrate LLM evaluation and logging into existing codebases.

    Market Position

    Humanloop positioned itself as the 'IDE for LLMs,' focusing on evaluation and safety, which led to its strategic acquisition by Anthropic.

    Leadership

    Founders

    RH

    Raza Habib

    Co-founder and CEO. Holds a PhD in Machine Learning from UCL (University College London). Previously focused on AI research and uncertainty in machine learning.

    PH

    Peter Hayes

    Co-founder and CTO. PhD in Machine Learning from UCL and graduate of Trinity College Dublin. Researcher in AI uncertainty.

    JB

    Jordan Burgess

    Co-founder and CPO. Holds an MPhil in Machine Learning from Cambridge University. Background in product management for AI/ML tools.

    EY

    Emine Yilmaz

    Co-founder and Advisor. Professor at UCL and Amazon Scholar. Research expert in information retrieval and NLP.

    DB

    David Barber

    Co-founder and Advisor. Professor of Machine Learning at UCL and Director of the UCL Centre for Artificial Intelligence.

    Executive Team

    RH

    Raza Habib

    CEO

    PhD in ML from UCL. Lead visionary for the LLM developer platform.

    PH

    Peter Hayes

    CTO

    PhD in ML from UCL. Led the technical development and infrastructure of the Humanloop platform.

    Board of Directors

    EY
    Emine Yilmaz
    Advisor / Co-founder
    AS
    Alex Stephany
    Board Member

    Founding Story

    Founded as a spinout from UCL by a team of machine learning researchers (PhD students and professors) who wanted to bridge the gap between AI research and practical, reliable application development.

    Business Model

    Revenue
    Reported between $1.7M and $3.8M ARR prior to acquisition.

    Revenue Model

    SaaS subscription-based model with tiers based on usage (logs) and team size.

    Pricing Tiers

    Free
    Free

    Up to 2 members, limited logs per month (approx 50).

    Startup
    Paid

    Increased limits and features for small teams.

    Enterprise
    Custom

    Full evaluation suite, RBAC, VPC deployment, and high-volume observability.

    Acquired by Anthropic in 2025; no longer an independent private entity.

    Target Markets

    Industries & Segments
    • Enterprise AI teams
    • AI Startups
    • Product Teams building LLM apps
    Use Cases
    • Testing and evaluating LLM application performance
    • Prompt engineering and version control
    • Monitoring AI agents in production
    • Gathering human feedback to improve model outputs
    Notable Customers
    • Gusto
    • Vanta
    • Duolingo

    Quick Facts

    Headquarters
    London, United Kingdom
    Founded
    2020
    Entity Type
    Private Limited Company
    Employees
    18
    Total Funding
    $7.91M (estimated total across all rounds)
    Investors
    Index Ventures, AlbionVC
    Office Locations
    London
    San Francisco

    Funding History

    Seed$2.6M
    2022-07-28
    Index Ventures
    Seed (YC)$130k
    2020-09-01
    Y Combinator
    Venture RoundUnknown
    2020-07-01
    UCL Technology Fund

    History & Milestones

    2025-08-14

    Acquired by Anthropic in a 'reverse acqui-hire' to boost enterprise AI safety and evaluation capabilities.

    2025-09-08

    Platform sunset following the acquisition by Anthropic.

    2024

    Reached General Availability (GA) of the Humanloop platform.

    2022-07-28

    Raised $2.6M Seed round led by Index Ventures.

    2020

    Founded as a spinout from University College London (UCL).

    Key Capabilities

    6
    Prompt versioning and management
    LLM-as-a-judge automated evaluations
    Human-in-the-loop feedback loops
    Observability and monitoring for LLM requests
    Model comparison and benchmarking
    Model Context Protocol (MCP) support

    Integrations & Partnerships

    Platform Integrations

    • OpenAI
    • Anthropic
    • LangChain
    • Claude
    • Vercel

    Key Partnerships

    Anthropic (formerly strategic, now parent)
    OpenAI (Platform integration)
    UCL (Research partner)

    Connect

    Website
    humanloop.com/

    AI Topics

    3

    Humanloop focuses on these topics:

    Performance Metrics(1)
    UX Design(1)
    Automated Testing(1)
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