Fiddler launches Developer plan at $0.002/trace, cuts tiers from 4 to 3
What happened
Between the Jan 19, 2026 and Jan 27, 2026 captures of Fiddler's pricing page, Pulse recorded 2 changes: 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; Developer plan launched with transparent usage-based pricing at $0.002 per trace. No public pricing existed for any plan before this change. Pulse files it as a pricing change (package change, price revealed) with an upward direction. Pulse's latest capture (Jul 6, 2026) lists Developer at $0 per trace.
Fiddler's previous recorded change was "Fiddler Introduces Free Guardrails Plan for Real-Time Moderation in GenAI Applications with Enhanced Trust Models" (Q3 2025). Before that Pulse recorded "Fiddler Introduces Free Trial for Guardrails with New Promotional Banner" (Q1 2025) and "Fiddler Removes Key Features from Premium Plan, Including GPU Acceleration and Ongoing Co-Pilot Services" (Q3 2024). Fiddler has been tracked since 2023-11-14.
In the same window Postman also changed their Cybersecurity & Identity Management pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Developer, Enterprise · PackagingRenamedFree GuardrailsFree
- Developer · Price visibilityAddedNo Developer planDeveloper plan
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Developer, Enterprise | Packaging | Free Guardrails | Free | Renamed |
| Developer | Price visibility | No Developer plan | Developer plan | Added |
Values as written on Fiddler's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of Fiddler's pricing page (fiddler.ai) from Jan 19, 2026 and Jan 27, 2026; the change is marked around the middle of the page, where "Free Guardrails" becomes "Free".
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Fiddler, pricing history
Full history- Jun 30, 2026improvedFiddler tightens free-tier guardrail latency to under 80ms
- Jul 3, 2026improvedFiddler: Free plan guardrails latency improved <100ms → <80ms, models renamed to Centor
- Apr 3, 2026packagingFiddler launches usage-based pricing at $0.002 per trace
- Week 5, 2026packagingFiddler launches Developer plan at $0.002/trace, cuts tiers from 4 to 3 · this change
- Q3 2025packagingFiddler Introduces Free Guardrails Plan for Real-Time Moderation in GenAI Applications with Enhanced Trust Models
- Q1 2025packagingFiddler Introduces Free Trial for Guardrails with New Promotional Banner
- Q3 2024improvedFiddler Removes Key Features from Premium Plan, Including GPU Acceleration and Ongoing Co-Pilot Services
Across Cybersecurity & Identity Management in the same window
All Cybersecurity & Identity Management changesQuestions about this change
Did Fiddler raise prices in January 2026?
No list-price increase was recorded between Jan 19, 2026 and Jan 27, 2026. The change Pulse detected was a pricing change: package change, price revealed.
What changed on Fiddler's pricing page between Jan 19, 2026 and Jan 27, 2026?
Developer, Enterprise packaging: Free Guardrails → Free, renamed; Developer price visibility: No Developer plan → Developer plan, added. Pulse compared the captures it took on Jan 19, 2026 and Jan 27, 2026; the before/after table above lists each item as written on the page.
How often does Fiddler change its pricing?
Pulse recorded 0 other pricing-page changes for Fiddler in the 90 days before this one; the previous change was "Fiddler Introduces Free Guardrails Plan for Real-Time Moderation in GenAI Applications with Enhanced Trust Models" in Q3 2025; Fiddler has been tracked since 2023-11-14.