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Fiddler AI

Enterprise AI observability and security for LLMs, agents, and ML models

llm-observability#ai-observability#llmops#model-monitoring#ai-security
Free trial Claimed API Self-hosted Teams
Toolglade’s take

Fiddler is one of the more established names in AI observability, and its dual strength in classic ML monitoring/explainability and modern LLM security is a real advantage for enterprises running both. Guardrails against hallucinations, prompt injection, and jailbreaks plus cost tracking cover the main production risks. It is firmly enterprise: pricing is quote-only and there is no self-serve free tier, so smaller teams and hobbyists are out of scope. Buyers should expect a sales-led evaluation rather than a swipe-a-card signup.

About Fiddler AI

Fiddler AI is an enterprise AI observability and security platform providing real-time monitoring, guardrails, and explainability for LLMs, agents, and ML models in production.

Fiddler AI is an enterprise-grade AI observability and security platform that helps teams deploy and operate LLM applications, AI agents, and traditional ML models in production. A pioneer in AI observability, it provides an all-in-one system for real-time monitoring, model performance tracking, and enterprise safeguards, giving teams visibility into how their AI behaves once it is live. Fiddler's LLMOps capabilities specifically target the risks of running large language models in production, including hallucinations, prompt injections, and jailbreaks, while also tracking operational costs and key performance metrics. Combined with its heritage in ML model monitoring, explainability, and bias detection, this lets organizations govern both classic ML and generative AI from a single platform, building safer and more reliable AI systems at scale. Fiddler is typically sold through custom, sales-led enterprise contracts rather than public pricing tiers, reflecting its focus on large organizations with governance and security requirements. It competes with AI observability and monitoring platforms, differentiating on its combination of deep ML monitoring and explainability with modern LLM and agent security safeguards.

TL;DR

Fiddler AI is an enterprise AI observability and security platform providing real-time monitoring, guardrails, and explainability for LLMs, agents, and ML models, sold via custom contracts.

Company overview

Fiddler AI is a pioneer in AI observability, offering an enterprise platform to monitor, secure, and explain AI systems in production. It serves large organizations that need to deploy LLMs, agents, and ML models with confidence.

The company built its reputation on ML model monitoring, explainability, and bias detection, then extended into LLMOps and AI security. It sells primarily through enterprise, sales-led engagements.

Product features

Fiddler provides real-time monitoring, performance tracking, and enterprise safeguards for AI systems. Its LLMOps features address hallucinations, prompt injections, and jailbreaks, and track operational costs and metrics.

Combined with model explainability and bias detection for classic ML, the platform lets organizations govern both generative AI and traditional models from one place, improving reliability and safety at scale.

Target market

Fiddler targets large enterprises and their AI/ML platform and governance teams, especially in regulated industries, that run LLMs, agents, and ML models in production and need observability plus security.

Buyer personas

End users

ML engineers, data scientists, and AI ops teams monitoring production AI.

Buyers

Heads of AI/ML, platform, and risk selecting observability tooling.

Key influencers

AI governance leads, security teams, and model risk officers.

Ideal customer profile

Large enterprises running LLMs, agents, and ML models in production that need combined observability, explainability, and security under enterprise governance.

Funding & performance

Venture-backed enterprise AI observability company (verify current funding with vendor).

Pros & cons

Pros

  • Established pioneer in AI observability
  • Covers both LLMs and classic ML
  • Real-time monitoring and guardrails
  • Model explainability and bias detection
  • Enterprise-grade security safeguards
  • Cost and performance tracking

Cons

  • Custom, sales-led pricing only
  • No public free tier
  • Enterprise focus excludes small teams
  • Setup and integration effort required
  • Not aimed at quick experiments

Key features

API
Team collaboration
Self-hosted
Multi-language
Integrations
ML frameworks, LLM providers, cloud platforms, REST API
Input types
text
Output types
text
Best For
Enterprise AI monitoring, LLM and agent security, ML model observability

Compare key features

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Feature
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Pricing
Contact for pricing
Freemium
Freemium
Free plan
No
Yes
Yes
Free trial
Yes
Yes
Yes
API
Yes
Yes
Yes
Self-hosted
Yes
Yes
Yes
Team support
Yes
Yes
Yes

Frequently asked questions

What does Fiddler AI monitor?+

Fiddler monitors LLM applications, AI agents, and traditional ML models in production, tracking performance, hallucinations, prompt injections, jailbreaks, costs, and key metrics.

Does Fiddler handle both LLMs and classic ML?+

Yes. Fiddler combines deep ML model monitoring, explainability, and bias detection with modern LLMOps safeguards for generative AI and agents.

How is Fiddler priced?+

Fiddler is sold through custom, sales-led enterprise contracts rather than public tiers. You contact their sales team for a quote based on your use case.

Can Fiddler prevent prompt injections?+

Fiddler's LLMOps addresses risks like prompt injections and jailbreaks through monitoring and guardrails, helping teams build safer generative AI systems.

Is Fiddler suitable for small teams?+

Fiddler is enterprise-focused with sales-led pricing and no public free tier, so it is generally better suited to larger organizations than small teams or individuals.

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