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hCaptcha logo
hCaptcha
✓ verifiedFreemium

Privacy-focused CAPTCHA and bot/fraud-detection service, a drop-in reCAPTCHA alternative for websites and apps.

4.4M visits/mo
huntr logo
huntr
✓ verifiedFree

AI/ML bug-bounty platform where researchers bypass LLM guardrails in timed challenges to win cash prizes.

60K visits/mo
Adversa AI logo
Adversa AI
✓ verifiedPaid

AI red-teaming and security platform for LLMs, agents and GenAI apps, offering continuous testing and remediation.

35K visits/mo
Flagright AI logo
Flagright AI
✓ verifiedPaid

AML and fraud compliance platform pairing transaction monitoring, screening, and explainable AI agents for financial institutions.

39K visits/mo321 saves
Resemble AI logo
Resemble AI
✓ verifiedFree trial

Generative-AI security platform for watermarking and detecting voice, image, and video deepfakes, built on its own voice-cloning models.

292K visits/mo14K saves
Pricing
Basic: Free
Pro: $139/month billed monthly, $99/month billed yearly
Enterprise: Contact sales

Free trial available

No public pricing

No public pricing

No public pricing

Flex plan: $0 to start (pay-per-use credits)
Team Seats: $20/month per user
Rapid voice clone: $2/month per voice
Pro voice clone: $5/month per voice
Voice design: $2/month per voice
Audio deepfake detection: $0.04 per second
Video deepfake detection: $0.07 per second

Free trial available

Core features
  • AI bot detection
  • Transaction fraud protection
  • Account-takeover (ATO) defense
  • Pull-based SMS MFA
  • Private Learning ML risk models
  • Two-line reCAPTCHA migration
  • Hundreds of integrations
  • Timed AI-hacking challenges with cash pots
  • Public leaderboard and rankings
  • Guardrail-bypass and jailbreak objectives
  • Hacktivity feed of activity
  • Community via Discord
  • Blog on LLM exploits and AI security
  • AI threat modeling for your stack
  • Continuous autonomous red-teaming
  • Auto-generated patches and remediation reports
  • Coverage for agents, MCP, LLMs and GenAI apps
  • Managed service or self-serve platform
  • Real-time transaction monitoring and rule engine
  • Explainable AI forensics agents
  • Dynamic risk scoring
  • Watchlist/sanctions/PEP screening
  • AI-native case management
  • Automated SAR filing to FinCEN and 70+ GoAML countries
  • Multimodal deepfake detection for audio, image, and video
  • Invisible, persistent watermarking for media provenance
  • Real-time deepfake monitoring bot for live meetings
  • Voice cloning and text-to-speech generation
  • Pay-as-you-go credit-based Flex pricing plan
  • Enterprise on-premise deployment and SSO options
Use cases
  • Blocking bots and spam signups
  • Preventing account takeover
  • Reducing transaction and payment fraud
  • Stopping credential stuffing
  • Red-teaming and jailbreaking LLMs
  • Earning bounties for AI exploits
  • Learning AI attack techniques
  • Competing against other researchers
  • Red-team custom AI agents and copilots
  • Detect prompt injection and agent hijacking
  • Harden GenAI apps before shipping
  • Continuously assess AI security posture
  • AML compliance and monitoring
  • Reducing false-positive alerts
  • Streamlining fincrime investigations and SAR filing
  • Enterprises verifying caller identity to prevent voice fraud
  • Media companies watermarking content for provenance tracking
  • Security teams monitoring live calls for deepfake impersonation
  • Developers building AI voice agents with cloned voices
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