Fiddler offers monitoring solutions for AI models, ensuring transparency, performance tracking, and bias detection throughout the model lifecycle.
Pricing Change History
7 changesFree plan guardrail latency specification improved from <100ms to <80ms, indicating faster real-time policy enforcement for the free tier.
Free plan guardrails latency claim improved from <100ms to <80ms; underlying model line renamed from 'Fiddler Trust Models' to 'Fiddler Centor Models' (also renamed site-wide from 'Fiddler Trust Service').
Quarterly roll-up · includes Jun 29 weekly
Pricing completely overhauled: Free Guardrails/Lite/Business/Premium replaced by Free/Developer/Enterprise. Developer plan introduces usage-based pricing at $0.002/trace — first public price on the page.
Quarterly roll-up · includes Jan 26 weekly
Developer plan launched with transparent usage-based pricing at $0.002 per trace. No public pricing existed for any plan before this change. Pricing restructured from 4 tiers (Free Guardrails, Lite, Business, Premium) to 3 tiers (Free, Developer, Enterprise). Lite and Business plans removed; Developer plan added at $0.002/trace; Free Guardrails renamed to Free; Premium renamed to Enterprise.
Free Guardrails plan introduced - real-time moderation for GenAI applications with contextual Fiddler Trust Models, protecting against hallucinations, toxicity, PII, prompt injection, and jailbreak attempts while maintaining <100ms latency
Business plan description changed from 'advanced explanations and transparency' to 'advanced ML and LLM monitoring' Premium plan: Removed 'GPU accelerated explanations' feature
Research Fiddler's pricing with the Pulse Agent
Ask anything about Fiddler's plans, packaging shifts, and how it compares across the market — answered live from verified data.
Ask the agentCurrent plans
Captured| Plan | Price |
|---|---|
| Free | Free |
| Enterprise | Contact |
| Developer | $0 per trace |
Company Facts
How Fiddler compares with its peers
| Company | Entry price | Last change |
|---|---|---|
P Postman | $9 /mo, billed annually + usage | Oct 29, 2026 |
1 1password | $2.49 /user/mo, billed annually | Jul 6, 2026 |
4 42Crunch | $9 /mo + usage | Jul 2, 2026 |
6 6Clicks | Contact | Jul 2, 2026 |
A Abusix | $10 /mo | — |
A accessiBe | $40.83 /mo, billed annually | Jul 20, 2026 |
Fiddler pricing FAQ
- How much does Fiddler cost?
- Fiddler prices on usage: the Developer plan is $0 per trace, and the Free plan is free.
- Does Fiddler have a free plan?
- Yes. Fiddler's Free plan is free.
- What pricing model does Fiddler use?
- Fiddler uses usage-based pricing across 3 plans, with a free tier.
- When did Fiddler last change its pricing?
- Jun 30, 2026: Fiddler tightens free-tier guardrail latency to under 80ms.
- How often has Fiddler changed its pricing?
- Pulse has recorded 7 pricing changes for Fiddler since it started tracking on Nov 14, 2023; the pricing page was last captured on Jul 6, 2026.