Fiddler AI vs LogicMonitor

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Fiddler AI

See full pricing history

USD · US · source: www.fiddler.ai

Plan	Pricing	Charged by	Offer type
Free — Free	Free Free	Flat	Standalone · Free
Developer — Developer Highlighted	$0.002 per trace $0.002 per trace	Usage · per trace	Standalone · Usage based

LogicMonitor

See full pricing history

USD · US · source: www.logicmonitor.com

Plan	Pricing	Charged by	Offer type
Free Starter Plan	Free Free Starter Plan For occasional web performance testing $0 Sign up 150 Monthly Test Runs Filmstrip and Video Google Lighthouse 60 days test retention Opportunities Custom Scripts up to 3 steps Monitoring from 30 locations worldwide 3 runs per test Carbon Cont	Flat · per month	Standalone · Free
Professional	USD 15 / month with annual commitment Starting at $180/year	Flat · per year	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Fiddler AI

Free — Free

Highlights Real-time guardrails to detect harmful exposure: Included
Highlights Protects against hallucinations, Toxicity, PII/PHI, Prompt Injection, and Jailbreak attempts: Included
Highlights Latency of <80ms: Included
Highlights Powered by contextual and task specific Fiddler Centor Models: Included

Developer — Developer

Highlights Everything in Free, plus: Included
Highlights Unified AI observability, including tests and experiments, for agentic and predictive systems: Included
Highlights Custom evaluators and bring your own judge: Included
Highlights Visualization-driven insights: Included
Highlights Role based access control and SSO: Included
Highlights SaaS deployment: Included

LogicMonitor

Free Starter Plan

Plan card 150 Monthly Test Runs: Included
Plan card Filmstrip and Video: Included
Plan card Google Lighthouse: Included
Plan card 60 days test retention: Included
Plan card Opportunities: Included
Plan card Custom Scripts up to 3 steps: Included
Plan card Monitoring from 30 locations worldwide: Included
Plan card 3 runs per test: Included
Plan card Carbon Control: Included

Professional

Plan card Everything in Free +: Included
Plan card Scheduled tests: Included
Plan card AI-powered smartboards & dashboards: Included
Plan card Customizable Alerts: Included
Plan card Priority tests: Included
Plan card API access: Included
Plan card Integrations: Included
Plan card Private tests & bulk testing: Included
Plan card Monitoring from 40 locations worldwide: Included
Plan card Experiments: Included
Plan card 13 months test retention: Included
Plan card Dedicated support: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Fiddler AI

August 27, 2026 Source
- Free — Free: Free
- Developer — Developer: $0.002 per trace

LogicMonitor

August 27, 2026 Source
- Free Starter Plan: Free
- Professional: USD 15 / month with annual commitment