Humanloop told customers it would shut down in July 2025 in preparation for joining Anthropic.
SourceHumanloop is the LLM evals platform for enterprises.
Public company, workplace, funding, and market signals
Humanloop built an enterprise LLM development platform for prompt management, evaluation, and observability, designed to help product, engineering, and domain experts collaborate on reliable AI apps; in August 2025 the team joined Anthropic and the standalone platform was sunset.
Primary product
Enterprise LLM evals platform for prompt management, evaluation, and observability
Founded
2020
Headquarters
London, United Kingdom
Team size
1-10
Work style
Hybrid
Industry
Software Development
Sub-industry
LLM evaluation, prompt management, and AI observability
Offices
0 jobs at Humanloop
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Business model
Stage
Seed
Total raised
$7.9M
Latest round
Seed · Nov 2023
Investors
Small, fast-moving, customer-obsessed startup culture with tight collaboration between engineering, product, and domain experts; hybrid office cadence with in-person days on Tuesdays and Wednesdays and a strong emphasis on rapid learning and shipping.
Work style
Hybrid
Compensation
A public Frontend Product Engineer posting listed $80K-$150K salary, and company/job pages also advertised competitive salary plus share options; broader comp bands were not publicly published.
Benefits
Pricing
Free trial plus monthly self-serve plans; enterprise subscriptions with annual billing, custom deployments, and tailored support
Differentiators
Technology
Customers
Competitors
Estimated revenue
$1M-$10M
Estimated monthly visits
43.8K
Traffic estimate as of Jun 2026
TechCrunch · Aug 2025
TechCrunch reported that Anthropic acquired the Humanloop team in an acqui-hire; Humanloop had told customers it would shut down in July 2025, and the founders plus roughly a dozen engineers/researchers joined Anthropic.
Humanloop · Aug 2025
Humanloop's own announcement said the team was joining Anthropic and that the standalone Humanloop platform was being sunset.
Humanloop · Nov 2024
Humanloop said it had reached general availability, described its eval-driven workflow for LLM apps, and said it had raised about $8M from investors including YC Continuity, Index Ventures, LocalGlobe, and founders of Datadog and Segment.
Index Ventures · Jul 2022
Index Ventures announced Humanloop's $2.6M seed round and described the product as helping humans teach AI algorithms via data labeling and feedback workflows.