Company · Directory listing
Arthur
ArthurAI, Inc. · United States · US · 3 listings
Claim status: UNCLAIMED · No published reviews · Directory only — not ranked
One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle. Arthur publishes Arthur AI Platform, Arthur Engine, and Arthur Bench as named AI products. Arthur is used for Model cards / documentation and Hallucination detection work. Arthur is recorded in United States. Arthur publishes product information at arthur.ai.
Company details
About Arthur
One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle. Arthur publishes Arthur AI Platform, Arthur Engine, and Arthur Bench as named AI products. Arthur is used for Model cards / documentation and Hallucination detection work. Arthur is recorded in United States. Arthur publishes product information at arthur.ai.
- Legal name
- ArthurAI, Inc.
- Headquarters
- United States
- Markets
- —
- Company size
- —
Directory & rankings
Customer ranking
Directory only. This listing has no customer stars or ranked position.
- Model cards / documentation · Directory only · Free listing · ranking code packs from £200 ex VAT
- Hallucination detection · Directory only · Free listing · ranking code packs from £200 ex VAT
- Guardrails · Directory only · Free listing · ranking code packs from £200 ex VAT
0 customer relationships verified at V3+ · Trustmark assessment results never affect this order.
Listings
Products and services from Arthur
3 products are listed for this company. Functional classification, deployment and autonomy are descriptive attributes. Impact class remains a separate assurance result.
- Public JSON for website embeds
PLATFORM INFRASTRUCTURE · Model cards / documentation · AI Governance & Assurance
- Sectors
- Not specified
- Deployment
- Not specified
- Capabilities
- Not specified
- Autonomy
- ASSISTIVE
- Data exposure
- Not specified
What the vendor’s website says · supplier-provided, not verified evidence
The Arthur Platform is an evaluation and monitoring platform for machine learning, generative AI and AI agent applications, covering pre-production evals, runtime guardrails and always-on production monitoring. For generative AI it tracks hallucination rates, toxicity, PII and sensitive data, token use and model cost; for agents it measures groundedness, tool selection and response relevance with trace visualisation and custom LLM-judge evals; and for traditional models it covers drift, accuracy and classification metrics. Arthur uses a data plane and control plane design: its evals engine runs inside the customer's own environment so inference data stays in their VPC, and only anonymised metrics flow to Arthur's control plane for dashboards, alerts, RBAC and SSO.
- Public JSON for website embeds

Arthur Bench
From their website · not verified evidence
SOFTWARE PRODUCT · Hallucination detection · AI Safety & Security
- Sectors
- Not specified
- Deployment
- Not specified
- Capabilities
- Not specified
- Autonomy
- ASSISTIVE
- Data exposure
- Not specified
What the vendor’s website says · supplier-provided, not verified evidence
One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle. Arthur Bench is Arthur's software product, from ArthurAI, Inc. Published at arthur.ai/blog/introducing-arthur-bench. Directory filing: Hallucination detection. Vendor legal name on this product record: ArthurAI, Inc. Arthur Bench is Arthur's software product, from ArthurAI, Inc. Published at arthur.ai/blog/introducing-arthur-bench. Directory filing: Hallucination detection.
- Public JSON for website embeds
Arthur Engine
From their website · not verified evidence
SOFTWARE PRODUCT · Guardrails · AI Safety & Security
- Sectors
- Not specified
- Deployment
- Not specified
- Capabilities
- Not specified
- Autonomy
- ASSISTIVE
- Data exposure
- Not specified
What the vendor’s website says · supplier-provided, not verified evidence
Arthur Engine is the self-hosted evaluation and guardrails component of the Arthur Platform, deployed in a customer's own AWS or Kubernetes environment next to their AI workloads. It handles tracing of LLM and agent calls, prompt management and experiments, offline and continuous evaluations, RAG and agentic experiments, and guardrail rules for hallucination, prompt injection, toxicity, sensitive data and PII leakage, plus custom rules. Arthur's documentation lists integrations with OpenAI, Anthropic, AWS Bedrock, Google ADK, LangChain, LlamaIndex, CrewAI, LiteLLM and the OpenAI Agents SDK, and the engine can also act as an OpenTelemetry sink for agent discovery.
Verified claims
- Domain associated with this organisation: Yes
- Claim status: UNCLAIMED
- Last verified:
What we have not verified
AI TrustMark has not independently verified supplier-provided marketing claims on this profile, including untested productivity, ROI or performance figures, unless they appear under verified claims or a named certificate. Absence of a claim from the verified list means it has not been evidenced here.
The organisation description above is supplier-provided unless a specific statement is listed as verified.
Products assessed
No assessed products are listed on this profile yet.
Customer experience
No published reviews yet. Review screenshots appear only with a qualifying Verity review; directory thumbnails from a vendor website are not review evidence.
Customer stories
No consented, relationship-verified customer stories yet.
FAQs
What does Arthur do?
One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle. Arthur publishes Arthur AI Platform, Arthur Engine, and Arthur Bench as named AI products. Arthur is used for Model cards / documentation and Hallucination detection work. Arthur is recorded in United States. Arthur publishes product information at arthur.ai.
What AI services or products does it provide?
Arthur AI Platform, Arthur Bench, Arthur Engine
Which AI categories does it operate in?
Model cards / documentation, Hallucination detection, Guardrails
Has Arthur been independently assessed by AI TrustMark?
No independent assessment result is published. Current listing status: Directory listing.
What procurement or assurance information is available?
Company identity, category assignment and any published certificates or assessment summaries appear on this page. Absence of a field means it has not been evidenced here.
Last verified:
Methodology version: See current methodology
Why complete verification
Completing verification can improve the quality of the public evidence available on this supplier profile. Useful verified information can deepen the profile and make public questions about the named product more answerable. It does not buy directory ranking, review stars, a higher Assurance Score, a favourable certificate outcome, or a guaranteed Google ranking.
Payment remains independent from rankings and assessment outcomes. Start an assessment · Methodology