Fiddler AI vs Semonto

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

Semonto

See full pricing history

EUR · US · source: semonto.com

Plan	Pricing	Charged by	Offer type
Basic subscription Highlighted	EUR 7 monthly €7/month	Flat · published subscription	Standalone · Fixed
Additional essential website	EUR 1 monthly €1/additional website/month	Unit · per additional essential website per month	Standalone · Usage based
Additional pro website	EUR 2 monthly €2/additional website/month	Unit · per additional pro website per month	Standalone · Usage based
Additional cron job or status page	EUR 0.5 monthly €0.50/additional cron job or status page/month	Unit · per additional cron job or status page per month	Standalone · Usage based

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

Semonto

Basic subscription

Official plan card Pro website monitors: 3

Limited
Official plan card Server health monitors: 1

Limited
Official plan card Cron-job monitors: 3

Limited
Official plan card Status pages: 1

Limited

Additional essential website

Official plan card Monitor type: Essential website

Limited
Official plan card Billing: Per additional monitor

Limited

Additional pro website

Official plan card Monitor type: Pro website

Limited
Official plan card Billing: Per additional monitor

Limited

Additional cron job or status page

Official plan card Resource: Cron job or status page

Limited
Official plan card Billing: Per additional resource

Limited

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

Semonto

August 27, 2026 Source
- Basic subscription: EUR 7 monthly
- Additional essential website: EUR 1 monthly
- Additional pro website: EUR 2 monthly
- Additional cron job or status page: EUR 0.5 monthly