CISO Tribune

Vendor comparison · 2 companies

Alice vs Fiddler AI

Alice's WonderSuite gives security, product, and compliance teams red teaming and real-time guardrails. Fiddler AI sells the AI Control Plane, a platform for first-party and third-party agents from the creation layer to production. CISO Tribune files both under AI model and agent security and AI firewalls and guardrails. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Alice
  • Fiddler AI
Alice vs Fiddler AI: Products, Customers and Funding Compared
AliceAlice's WonderSuite gives security, product, and compliance teams red teaming and real-time guardrails.alice.ioFiddler AIFiddler AI sells the AI Control Plane, a platform for first-party and third-party agents from the creation layer to production.fiddler.ai
What it sells
  • WonderSuite[1][2][4][5]WonderSuite is the AI security platform for teams launching customer-facing AI in regulated industries.
  • WonderBuild[1][6][9]WonderBuild red teams customer-facing AI apps, agents, and agentic workflows before launch.
  • WonderFence[1][3][4][6][7][8][9]WonderFence sits between external-facing AI and users, intercepting harmful, non-compliant, and off-policy responses before they land.
  • WonderCheck[1][4][7][9]WonderCheck's ongoing automated red-teaming detects drift, regression, and emerging risks.
  • Rabbit Hole[1][6][10][11]Rabbit Hole is an adversarial network of in-house researchers and data.
  • ActiveFence[3][8]Alice's ActiveFence is a UGC trust and safety layer that detects, prevents, and responds to online harm.
  • Agentic Observability[2][4]Monitors every layer of the agentic hierarchy, from application health to agent interactions to individual spans.
  • ML Observability[2][5]Detects data and concept drift in predictive models and provides root cause analysis and fairness metrics.
  • Fiddler Centor Models[2][3][6]Power guardrails and evaluations in-environment, with no external LLM API calls.
  • Agent Registry[7]Lists every agent application in Fiddler, including first-party, third-party and coding agents.
Categories
Headquarters
New York, USA[1]Not stated on its pages
Founded
Not stated on its pages2018[1]
Ownership and funding
Not stated on its pagesPrivately held[12]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • January 27, 2026Fiddler AI announced a $30 million Series C funding round led by RPS Ventures.[1]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: listed, seen November 10, 2026[14]
  • G2: listed, seen November 10, 2026[12]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Alice offers WonderSuite to teams launching customer-facing AI in regulated industries. The pages describe WonderSuite giving security, product, and compliance teams red teaming and real-time guardrails. Foundation model labs, global enterprises and platforms deploying AI are the customers Alice names. Alice describes its ActiveFence layer as serving social platforms and marketplaces with UGC trust and safety. ActiveFence's deep web investigations serve enterprises and governments tracing malicious operations.From its own pages, Fiddler AI sells mainly to organizations deploying AI agents and predictive models, across all industries and in regulated industries such as financial services, healthcare, insurance and government. The typical users are software and AI engineers, data scientists, platform and DevOps teams, and security and compliance teams. Its pages address insurers, healthcare organizations and financial institutions deploying AI across underwriting, fraud and trading. Deployment options on the Enterprise plan are SaaS, VPC or on-premises.
Last verified
October 29, 2026November 6, 2026

Where they overlap

  • AI model and agent security is the primary category of both Alice and Fiddler AI; both are also filed under AI firewalls and guardrails.

Where they differ, field by field

  • Fiddler AI is also filed under AI governance.
  • Alice lists WonderSuite, WonderBuild, WonderFence, WonderCheck, Rabbit Hole and 1 more. Fiddler AI lists Agentic Observability, ML Observability, Fiddler Centor Models and Agent Registry.
  • Alice is headquartered in New York, USA.
  • Fiddler AI was founded in 2018.
  • Fiddler AI is privately held.

How they differ

CISO Tribune files Alice under AI model and agent security and AI firewalls and guardrails, and files Fiddler AI under AI model and agent security, AI governance, and AI firewalls and guardrails. Alice sells WonderSuite, a platform covering pre-launch red teaming, real-time guardrails, and continuous post-launch testing for customer-facing AI in regulated industries. Its WonderFence product screens prompts and responses, and WonderBuild red teams AI apps and agents before launch. Alice also sells ActiveFence, a UGC trust and safety layer. Fiddler AI sells Agentic Observability, ML Observability, Fiddler Centor Models, and Agent Registry, along with the AI Control Plane for first-party and third-party agents. Both companies offer guardrails, and both address agents, but Fiddler AI centers on monitoring, governance, and audit evidence, including predictive models, while Alice centers on red teaming and runtime protection.

Alice is headquartered in New York, USA, and ActiveFence Ltd does business as Alice. Fiddler AI was founded in 2018 and is privately held. On January 27, 2026, Fiddler AI announced a $30 million Series C funding round led by RPS Ventures. Alice names foundation model labs, global enterprises, and platforms deploying AI as its customers. Fiddler AI says it serves organizations deploying agents across industries, including financial services, healthcare, insurance, and government.

Alice and AI21 post-trained NVIDIA's open Nemotron 3.5 Super to resist indirect prompt injection. WonderFence is now a Databricks Unity AI Gateway External Policy.

What it sells: Alice

What WonderSuite does[1][2][4][5]
WonderSuite tests security and safety posture before launch, protects the AI experience in production, and catches what changes over time. WonderSuite covers pre-launch red teaming, real-time guardrails, and continuous post-launch testing in a single platform. WonderSuite provides end-to-end security coverage for agentic systems, from adversarial testing before deployment to real-time behavioral guardrails in production.
What WonderBuild does[1][6][9]
WonderBuild identifies gaps between policies and the system prompt, across text, multimodal, and agentic systems. WonderBuild gives CISO, legal, and compliance teams test documentation with findings mapped to regulatory requirements. WonderBuild red-teaming findings integrate into WonderFence.
What WonderFence does[1][3][4][6][7][8][9]
WonderFence reviews every prompt coming in and every response going out, and blocks harmful inputs before they hit the LLM. WonderFence trains a dedicated detector for each policy using real-world adversarial data, deployed at sub-100ms latency. WonderFence maps guardrails to EU AI Act, ISO 42001, NIST, MITRE ATLAS, and OWASP.
What WonderCheck does[1][4][7][9]
WonderCheck integrates directly into CI/CD pipelines for on-demand, scheduled, and ongoing testing. WonderCheck ranks issues by severity and pairs each one with clear remediation guidance. WonderCheck findings flow directly into WonderFence guardrails, or back into WonderBuild for deeper refinement.
What Rabbit Hole does[1][6][10][11]
Rabbit Hole collects real attacks and uses them to secure AI. Alice's solutions are powered by Rabbit Hole, an adversarial threat intelligence engine built on billions of real-world data samples.
What ActiveFence does[3][8]
ActiveFence live feeds surface harmful content, viral narratives, and coordinated manipulation in real time, across languages and regions. ActiveFence conducts deep web investigations to expose networks, specific threat actors, and emerging tactics. ActiveFence's SaaS tools are built for content moderation.

What it sells: Fiddler AI

What Agentic Observability does[2][4]
Fiddler Agentic Observability monitors every layer of the agentic hierarchy from application health to agent interactions to individual spans. Fiddler gives aggregated and granular visibility from application to session to agent to trace to span.
What ML Observability does[2][5]
Fiddler ML Observability provides root cause analysis and fairness metrics such as disparate impact, demographic parity and equal opportunity. Fiddler tracks performance, drift, data integrity and model bias to observe and improve model health.
What Fiddler Centor Models does[2][3][6]
Fiddler Centor Models power guardrails and evaluations in-environment, with no external LLM API calls. Customers can choose Fiddler Centor Models that run in their environment, custom evaluators for domain-specific logic, or external judges for advanced reasoning.
What Agent Registry does[7]
Agent Registry lists every agent application in Fiddler, including first-party, third-party and coding agents. Fiddler records evaluation and policy outcomes with full traceability and generates audit evidence aligned with frameworks such as GDPR, HIPAA, NAIC, SR 11-7, NIST AI RMF, ISO/IEC 42001 and the EU AI Act.

Questions about Alice and Fiddler AI

What do Alice and Fiddler AI sell?
Alice sells WonderSuite, WonderBuild, WonderFence, WonderCheck, Rabbit Hole and 1 more. Fiddler AI sells Agentic Observability, ML Observability, Fiddler Centor Models and Agent Registry.
Are Alice and Fiddler AI in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are Alice and Fiddler AI headquartered?
Alice is headquartered in New York, USA.
When were Alice and Fiddler AI founded?
Fiddler AI was founded in 2018.
Who owns Alice and Fiddler AI?
Fiddler AI is privately held.
Who are Alice and Fiddler AI sold to?
From its own pages, Alice offers WonderSuite to teams launching customer-facing AI in regulated industries. From its own pages, Fiddler AI sells mainly to organizations deploying AI agents and predictive models, across all industries and in regulated industries such as financial services, healthcare, insurance and government.
What have Alice and Fiddler AI announced recently?
January 27, 2026: Fiddler AI announced a $30 million Series C funding round led by RPS Ventures.

About Alice

Alice's WonderSuite gives security, product, and compliance teams red teaming and real-time guardrails. ActiveFence Ltd does business as Alice. WonderSuite is the AI security platform for teams launching customer-facing AI in regulated industries. WonderSuite tests security and safety posture before launch, protects the AI experience in production, and catches what changes over time. WonderSuite combines automated adversarial testing with expert-led red teaming and real-time protection. WonderSuite covers pre-launch red teaming, real-time guardrails, and continuous post-launch testing in a single platform. In WonderSuite, automated red teaming assesses how an agent behaves before any guardrails are deployed. WonderSuite aligns every test, guardrail, and finding to customer policies and to compliance frameworks, including OWASP, NIST, MITRE ATLAS, and the EU AI Act.[2][3][4][5]

WonderBuild red teams customer-facing AI apps, agents, and agentic workflows before launch. WonderBuild runs thousands of adversarial tests based on custom policies that surface prompt injections, jailbreaks, data leakage risks, and compliance and regulatory gaps. WonderBuild uses adversarial data from Rabbit Hole to expose the path attackers take. WonderBuild identifies gaps between policies and the system prompt, across text, multimodal, and agentic systems. WonderBuild gives CISO, legal, and compliance teams test documentation with findings mapped to regulatory requirements. WonderBuild red-teaming findings integrate into WonderFence.[6]

WonderFence sits between external-facing AI and users, intercepting harmful, non-compliant, and off-policy responses before they land. WonderFence deploys runtime guardrails tuned to the customer's application and policies, intercepting harmful, non-compliant, or off-brand responses. WonderFence reviews every prompt coming in and every response going out, blocks harmful inputs before they hit the LLM, and blocks harmful outputs in real time before they impact users. WonderFence trains a dedicated detector for each policy using real-world adversarial data, deployed at sub-100ms latency. WonderFence watches every message in both directions, 24/7, blocking, masking, or alerting in real time, with activity tracked in a dashboard. WonderFence maps guardrails to the regulatory frameworks that legal and compliance teams care about: EU AI Act, ISO 42001, NIST, MITRE ATLAS, and OWASP. WonderFence is now a Databricks Unity AI Gateway External Policy that can be attached once in Unity Catalog to screen every governed model call, with no SDK and no code changes.[3][4][7][8]

WonderCheck runs continuous automated red teaming in production. WonderCheck's ongoing automated red-teaming detects drift, regression, and emerging risks. WonderCheck watches for drift, surfacing behavioral changes before they become incidents. WonderCheck integrates directly into CI/CD pipelines for on-demand, scheduled, and ongoing testing. WonderCheck ranks issues by severity and pairs each one with clear remediation guidance. WonderCheck findings flow directly into WonderFence guardrails, or back into WonderBuild for deeper refinement.[4][7][9]

Rabbit Hole is an adversarial network of in-house researchers and data that connects online attacks with the real world. Rabbit Hole collects real attacks and uses them to secure AI. Alice's solutions are powered by Rabbit Hole, an adversarial threat intelligence engine built on billions of real-world data samples collected across nearly a decade. Alice produces safety, security, multimodal, agentic, and skills-based datasets for model, application, and agent training. Alice combines expert-led and automated red-teaming to stress-test models across text, image, audio, and video under real adversarial conditions. Alice's evaluation and benchmark datasets are based on Alice's harms taxonomy or customized to customer policies. Alice provides AIGC and harmful content learning sets purpose-built for guardrail and content classifier creation. Alice provides simulated, high-fidelity environments and scenarios for training and testing AI agents and agentic models. Alice and AI21 post-trained NVIDIA's open Nemotron 3.5 Super to resist indirect prompt injection. Alice and Inflection AI are releasing a multi-turn red-teaming dataset covering risks such as emotional dependency and misplaced belief.[8][10][11][12]

Alice names foundation model labs, global enterprises and platforms deploying AI as its customers. WonderSuite provides end-to-end security coverage for agentic systems, from adversarial testing before deployment to real-time behavioral guardrails in production. WonderSuite covers prompt injection, unsafe tool calls, data leakage, and multi-step exploits across the entire agentic architecture. Alice connects directly through existing third-party Customer Experience (CX) agent extensions, so there is no need to swap vendors or rebuild integrations. Alice goes past literal translation to catch regional slang, dialect, euphemism, and coded phrasing. Alice watches every message in both directions, blocking, masking, or alerting in real time, at P99 under 120ms.[2][3][10][12]

Alice's ActiveFence is a UGC trust and safety layer that detects, prevents, and responds to online harm. ActiveFence live feeds surface harmful content, viral narratives, and coordinated manipulation in real time, across languages and regions. ActiveFence delivers datasets of adversarial indicators, domains, IPs, and hashes. ActiveFence uncovers vulnerabilities across code, systems, and infrastructure. ActiveFence conducts deep web investigations to expose networks, specific threat actors, and emerging tactics. ActiveFence's SaaS tools are built for content moderation. ActiveMind, powered by in-house large language models, helps moderation teams validate, flag, and respond to harmful content.[8][13]

Alice on the record

Sources

Alice full record

  1. [1]alice.ioAlice · alice.io · undated page, accessed October 29, 2026 · Tier A
  2. [2]GenAI Apps & Agents Security | WonderSuite by AliceAlice · undated page, accessed November 10, 2026 · Tier A
  3. [3]Alice for third-party CX agentsAlice · undated page, accessed November 10, 2026 · Tier A
  4. [4]AI Governance & Safety Platform for Enterprise | AliceAlice · undated page, accessed November 10, 2026 · Tier A
  5. [5]AI Detection Response | Alice Red Teaming and GuardrailsAlice · undated page, accessed November 10, 2026 · Tier A
  6. [6]WonderBuild: Pre-Launch AI Red Teaming | AliceAlice · undated page, accessed November 10, 2026 · Tier A
  7. [7]WonderFence: Real-Time AI Guardrails | Sub-150ms LatencyAlice · undated page, accessed November 10, 2026 · Tier A
  8. [8]ActiveFence UGC Protection | Alice Trust & Safety PlatformAlice · undated page, accessed November 10, 2026 · Tier A
  9. [9]WonderCheck | Ongoing AI Red Teaming for Production | AliceAlice · undated page, accessed November 10, 2026 · Tier A
  10. [10]Alice | Secure, Safe, & Trustworthy AIAlice · undated page, accessed November 10, 2026 · Tier A
  11. [11]Foundation Models | AI Security, Safety & Trust Ecosystem | AliceAlice · undated page, accessed November 10, 2026 · Tier A
  12. [12]Multilingual AI Guardrails, Every Language & Dialect | AliceAlice · undated page, accessed November 10, 2026 · Tier A
  13. [13]Internal AgentsAlice · undated page, accessed November 10, 2026 · Tier A
  14. [14]Alice Reviews, Ratings & Features 2026Gartner Peer Insights · undated page, accessed November 10, 2026 · Tier C

Fiddler AI full record

  1. [1]Fiddler Raises $30M Series C to Deliver the First Control Plane for AIFiddler AI · published January 27, 2026 · Tier A
  2. [2]fiddler.aiFiddler AI · fiddler.ai · undated page, accessed November 6, 2026 · Tier A
  3. [3]Fiddler AI: The Control Plane for Enterprise AI AgentsFiddler AI · undated page, accessed November 10, 2026 · Tier A
  4. [4]Fiddler AI Observability for Healthcare LLM ApplicationsFiddler AI · undated page, accessed November 10, 2026 · Tier A
  5. [5]Fiddler AI Control Plane for Financial Services | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  6. [6]Customer Experience AI Observability for Agents | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  7. [7]AI Governance, Risk Management, and Compliance (GRC) | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  8. [8]Fiddler AI Observability for Insurance LLM Applications | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Observability for Lending and Trading | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  10. [10]Government | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  11. [11]About Us | Fiddler AIFiddler AI · undated page, accessed November 10, 2026 · Tier A
  12. [12]Fiddler AI Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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