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PromptBrake vs Woodstitch

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PromptBrake compared with Woodstitch
DetailPromptBrake logo PromptBrakeWoodstitch logo Woodstitch
What it doesAutomated AI security testing for chatbots, agents, and APIs Human evaluation for text-to-speech with blinded listening studies
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Paid
PricingFree trial: 3 scans over 7 days. $99 USD once for 5 scans valid 30 days (no renewal). $499/month for 30 scans per billing month and one active runner license (month-to-month). $18.00 per hour of audio heard by listeners; $0.30 per judgement on a pair of two 30-second clips; $300.00 for 200 pairs × 5 ratings with 30-second clips (1,000 judgements)
Key features
  • 138 automated checks across 18 attack categories
  • API endpoint and web chatbot testing
  • Self-hosted Docker runner
  • Evidence exports and Baseline Diff
  • CI/CD release gate automation
  • Findings with evidence, business impact, and remediation guidance
  • Behavioral regression detection
  • Blinded paired-preference studies with no system names visible
  • API for creating studies and retrieving results
  • Exact price quote before study starts
  • Per-judgement data export as CSV
  • Paid US-based listener panel
  • Attention signals recorded with every judgement
  • Live results streaming as listeners answer
  • Detection template for AI vs human narration
  • Published methodology and platform transparency
What makes it different
  • Built by an application-security practitioner with GWEB certification
  • Compare test results with Baseline Diff to verify fixes
  • Publishes its own listening studies on the same platform with the same methodology as customer studies
  • Forced-choice preference testing answers which system people prefer, not rating scales
  • Fast turnaround with live result streaming and no minimum study size
  • Transparent pricing with no setup fees or minimums, quoted before starting
  • Customer audio stored securely and used only for that study
Community votes00
DR (Domain Rating by Ahrefs)33 +1 (up) since last check8 no change since last check
Trust Flow (Majestic)129
Citation Flow (Majestic)2924
Referring domains (Majestic)4669

5 details filled in for both companies.

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