New check

Comparison

Giskard vs Promptfoo

Giskard and Promptfoo both land on Depends.

Giskard

Depends

Confidence: Medium

Buy if you ship customer-facing LLM agents and have engineers to act on scan findings.

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Promptfoo

Depends

Confidence: Medium

Buy the free open-source CLI if your team ships LLM features and must test for prompt injection, jailbreaks, and data leaks before production.

Read the full report

Giskard versus Promptfoo
Compare	Giskard	Promptfoo
Verdict	Depends	Depends
Best for	Teams with LLM agents in production	Teams shipping LLM applications
Who it's not for	Hobbyists and solo developers . serious overkill	Teams with no LLM features . pure overkill
Privacy	No known public vulnerabilities found in the sources reviewed.^⁶	No known public vulnerabilities found in the sources reviewed.¹⁰
Support quality	No evidence found	No support evidence in sources
Public sentiment	Independent user reviews are scarce; sources are mostly vendor-adjacent coverage and directories with little verbatim feedback.^⁵	Developer posts praise it as a developer-first, open-source eval and security tool; independent quantitative reviews are scarce.¹⁴
Biggest gotcha	Hub pricing is sales-gated; expect enterprise quotes, not sticker prices^¹	Enterprise pricing only via sales call; hard to budget without a demo.¹¹

Pick Giskard when

Teams with LLM agents in production
ML engineers running pre-launch vulnerability scans
EU-compliance-driven enterprises
Companies wanting continuous automated red teaming

When Giskard is not a fit

Hobbyists and solo developers . serious overkill
Small teams with no ML engineers on staff
Buyers wanting transparent published pricing
Orgs with no LLMs in production yet

Pick Promptfoo when

Teams shipping LLM applications
AI security and red-team engineers
Regulated industries (finance, EU AI Act)
Dev shops wanting CI-integrated evals

When Promptfoo is not a fit

Teams with no LLM features . pure overkill
Non-technical buyers wanting plug-and-play SaaS
Anyone needing published pricing before a sales call
Small projects needing only basic prompt spot-checks

Sources

Giskard homepagegiskard.ai
official
About Giskardgiskard.ai
official
Top 10 European companies building infrastructure for AI securityfintech24h.com
news
Giskard: red teaming and OSS-to-Hub expansionglobal-products-research.com
review
Giskard pricing, limits and alternativesdiscoverthetools.com
review
Security page crawl resultgiskard.ai
security
Giskard - startups and scaleups portaliagenerative.numeum.fr
news
Arize AI and observability competitor landscapeskywork.ai
review
Build Secure AI Applications | Promptfoo (official)promptfoo.dev
official
Promptfoo product security pagepromptfoo.dev
security
Prompt Security vs Promptfoo (2026): Pricing & Featuresaicompliancevendors.com
review
Giskard vs Promptfoo (2026): Pricing & Featuresaicompliancevendors.com
review
Promptfoo Review 2026: Features, Pricing & Alternativesaicompliancevendors.com
review
Ian W. on LinkedIn . secure, reliable LLMslinkedin.com
review
Vanessa Sauter on LinkedIn . Promptfoolinkedin.com
review
Best AI Security Software 2026 . FeaturedCustomersfeaturedcustomers.com
review