Fiddler AI —
Build trust into AI with Fiddler - the pioneer in AI Observability.

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About Fiddler AI

We envision a future where AI systems are not just powerful but inherently trustworthy, fostering confidence and ethical governance across all enterprises and public sectors. Our mission is to illuminate the complex workings of AI through comprehensive observability, making every decision and outcome transparent, understandable, and fair.

By pioneering advanced AI observability technologies and responsible AI frameworks, we empower organizations to detect bias, monitor model performance, and manage AI risks proactively throughout the entire machine learning lifecycle. We believe that true innovation arises when AI systems are held to the highest standards of accountability and ethical stewardship.

Through cutting-edge tools and human-centered approaches, we are building the infrastructure for a future where AI deployment is secure, explainable, and aligned with societal values—unlocking new potentials for industries and governments to harness AI confidently and responsibly.

Our Review

We've been tracking the AI governance space for a while now, and Fiddler AI keeps popping up in conversations about responsible AI deployment. After digging into their platform, we can see why they're gaining traction with enterprise customers who need more than just "black box" AI solutions.

What started as Krishna Gade's frustration with opaque ML systems at Facebook has evolved into a comprehensive AI observability platform. The founding story resonates—anyone who's tried to explain why an AI model made a particular decision knows the pain point Fiddler is solving.

What Makes Them Stand Out

Fiddler's approach to AI observability is refreshingly comprehensive. While many companies focus on either monitoring or explainability, Fiddler tackles the full spectrum: model performance tracking, bias detection, security monitoring, and actual interpretability tools like Shapley values and their proprietary Fiddler Shap method.

We're particularly impressed by their human-in-the-loop capabilities. For mission-critical applications—think government agencies or financial institutions—having humans verify AI decisions isn't just nice-to-have, it's essential for maintaining trust and compliance.

The Customer Base Tells a Story

Here's what caught our attention: Fiddler isn't just serving typical tech companies. They're working with government agencies on national security applications and financial services firms dealing with regulatory scrutiny. That's not an easy customer base to crack—it requires serious security chops and proven reliability.

The fact that In-Q-Tel (the CIA's venture arm) invested in them speaks volumes about the platform's enterprise readiness. These aren't customers who take risks on unproven technology.

Room for Growth

With $63.2 million raised and only 86 employees, Fiddler appears well-capitalized for their current stage. However, the AI governance market is heating up fast, and they'll need to stay ahead of both established players and well-funded newcomers.

Their $12.2 million in annual revenue suggests solid traction, but scaling enterprise sales in this space requires significant investment in both technology and go-to-market efforts. The good news? They're addressing a real pain point that's only getting more critical as AI adoption accelerates across industries.

Features

Platform Type
Pricing
Contact for pricing
Features

Model Monitoring: Continuous tracking of ML and large language models performance, fairness, and security in production

Explainable AI: Techniques such as Shapley values, Integrated Gradients, proprietary methods for interpreting model decisions and bias detection

Bias Detection & Responsible AI: Real-time bias and fairness monitoring with alerts, root cause analysis, and actionable insights

Security & Compliance: Monitoring AI risks including biases, model drift, and regulatory compliance

Human-in-the-loop capabilities for mission-critical AI decisions

Jobs

Solutions Architect, Customer Success - US (Remote)
Sep 20, 2026
Open
Open
Senior Manager ABM & Campaigns
Sep 20, 2026
Open
Open

FAQs

When was Ploy founded?

Ploy was founded in 2024.

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Last Update
August 20, 2026
Categories
Productivity
AI Chatbots
Customer Support
Analyse Text
Developer Tools
Business Operations
Companies size
51-200
Founded in
2018
Country
United States
Last funding
Series B
Bio

Fiddler is the AI Control Plane, the system of trust, for first-party and third-party agents from the creation layer to production. Continuous evaluation, reliable monitoring, enforceable policy, and auditable governance give enterprises the centralized controls and actionable insights to scale AI with trust. Integral to the platform are the secure Fiddler Centor Models, which power the industry’s fastest guardrails and evaluations that require low latency and cost-effectiveness or complex reasoning with accuracy. Compared to external LLMs, Fiddler Centor Models offer a low TCO with no hidden costs. Fortune 100 organizations use Fiddler to deliver high performance agentic and predictive applications, protect from costly risks, and maximize ROI. An integral part of the platform, the Fiddler Trust Service provides quality and moderation controls for AI agents and GenAI applications. Powered by cost-effective, task-specific, and scalable Fiddler-developed trust models — including cloud and VPC deployments for secure environments — it delivers the fastest guardrails in the industry. Fortune 500 organizations use Fiddler to scale AI agents, GenAI, and ML deployments. This helps them deliver high performance AI, avoid costly AI risks, and maximize ROI.

Software Development