Strongest fit
Who it is built for
- Enterprise teams deploying autonomous AI agents
- Teams monitoring LLM applications and traditional ML models
- Organizations that need enforceable AI safety and governance policies
Fiddler AI
AI control plane for enterprise agents and models
Fiddler AI is an enterprise AI control plane for monitoring, evaluating, securing, and governing agents, LLM applications, and traditional ML models. It gives teams execution context and decision lineage, applies guardrails, and supports continuous evaluation throughout the AI lifecycle.
FAFiddler AIProduct screenshot pending
- Best for
- Enterprise teams deploying autonomous AI agents
- Pricing signal
- Free
- Primary category
- AI observability
- Last verified
- Jul 31, 2026
The decision
Should Fiddler AI make your shortlist?
Start with the job, the team, and the constraints. Product fit becomes much clearer when those three line up.
Practical use cases
Jobs it can take on
- Monitor agentic applications and multi-step workflows in production
- Test and validate LLM outputs before and after deployment
- Apply guardrails for hallucinations, toxicity, PII or PHI, prompt injection, and jailbreak attempts
Before you choose
Know the tradeoffs
- The Free plan is limited to real-time guardrails, while unified observability, tests, and experiments are part of the Developer plan.
- The Developer plan is priced at USD 0.002 per trace.
Inside the product
What you can actually do with it.
The core product capabilities, grouped around the work they enable.
Agentic observability
Fiddler monitors agents and multi-step workflows with visibility across the agentic hierarchy.
Continuous evaluations
Teams can test and validate LLM applications and models before and after deployment using custom evaluators or their own judge.
Inline guardrails
Fiddler enforces policies on agent request and response paths to approve inputs and outputs.
Typical workflow
Teams onboard an agentic application, LLM application, or ML model and send its traces to Fiddler for evaluation and monitoring. Fiddler surfaces execution context and applies guardrails so teams can investigate issues and enforce policies in production.
Plans and official links
Plans and accessFree.
See the entry price, free access options, company details, and direct vendor destinations in one place.
Starting pointFree
Free plan
See plans- Provider
- Fiddler Labs, Inc.
- Based in
- US
Official destinations
Choosing for a real workflow?
Make the tool work with the rest of your operation.
We map the workflow, connect existing systems, choose what to buy, and build what is missing.