Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors
Fiddler AI records 44,204 monthly visits with -10.2% month-over-month growth and Contact for Pricing pricing. Polymer records 3,179 monthly visits with -18% growth and Contact for Pricing pricing.

Runtime data security for AI and SaaS workflows
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | fiddler.ai | polymerhq.io |
| Pricing Model | Contact for Pricing | Contact for Pricing |
| Monthly Visits | 44.2K (44,204) | 3.18K (3,179) |
| MoM Traffic Delta | -5.04K (-10.2%) | -698 (-18%) |
| Primary Market & Share | 🇺🇸 United States (28.4%) | 🇺🇸 United States (94.2%) |
| Direct Visits / mo | 9.13K | 1.25K |
| User Rating | 4.4 | 4.2 |
| Supported Platforms | Website | Website |

The control plane for trusted enterprise agents and models
See the performance of every agent and predictive model in a single pane of glass, with every action, token and dollar traceable by user and team.
Fiddler Centor Models power policy enforcement and continuous evaluation inside your network, avoiding external LLM API calls and their hidden costs.
Detects and redacts PII, PHI and secrets on the same request path — before a prompt reaches the model and before a response reaches the developer — with sub-80ms latency.
Keeps a living inventory of every connected agent and records each enforcement decision, with who triggered it and what happened, ready for GRC and AI regulation audits.

Runtime data security for AI and SaaS workflows
Build context-driven policies for your organisation's unique AI usage, then group human and non-human identities to control how each can interact with data.
Continuously monitor data in motion and at rest and label sensitive assets according to your own security policies.
Reports and risk scores surface shadow AI usage, insider threats and misconfigurations so priorities are clear.
Redact sensitive data, revoke file access and trigger custom workflows in real time, with or without human approval.
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors

Free / Open-sourcePrivacy-first bot detection and fraud prevention for the web
Free / Open-sourcePrivacy-first bot detection and fraud prevention for the web
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams

Enterprise AI and plagiarism detection for content integrity

Free / Open-sourceAgent observability, evaluation, and continuous improvement for production AI
Free / Open-sourceAgent observability, evaluation, and continuous improvement for production AI

Attack-led AI security testing and red teaming
Attack-led AI security testing and red teaming

See your enterprise the way attackers do — observe, understand, signal, and respond at AI speed
See your enterprise the way attackers do — observe, understand, signal, and respond at AI speed

Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents
Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents

Free / Open-sourceEvaluate, monitor, and govern your AI applications in production
Free / Open-sourceEvaluate, monitor, and govern your AI applications in production

Runtime security that stops prompt injection and data leaks in LLM apps

Free / Open-sourceStandardize LLM evaluation, observability, and red teaming across your whole org
Free / Open-sourceStandardize LLM evaluation, observability, and red teaming across your whole org

AI-powered cloud DLP and security awareness training for SaaS environments
AI-powered cloud DLP and security awareness training for SaaS environments