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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

huntr logo
huntr
✓ verifiedFree

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

60K visits/mo
Lakera Guard logo
Lakera Guard
✓ verifiedFreemium

Security platform that guards GenAI apps and AI agents against prompt injection, data leaks and misuse for enterprise teams.

306K visits/mo
Greip logo
Greip
✓ verifiedFreemium

Fraud-prevention API providing payment fraud scoring, VPN/proxy detection, IP intelligence, and content moderation for developers.

30K visits/mo19K saves
DeepSeek logo
DeepSeek
✓ verifiedFreemium

Chinese AI lab DeepSeek offering free chat apps and low-cost API access to its frontier V-series and R-series reasoning models.

430M visits/mo
Abacus.AI logo
Abacus.AI
✓ verifiedPaid

AI super-assistant plus enterprise ML platform: ChatLLM for teams and end-to-end model building for enterprises; broad, pricing not shown.

4.3M visits/mo
Pricing

No public pricing

No public pricing

Free trial available

Free: $0 (2,000 requests included)

No public pricing

No public pricing

Core features
  • 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
  • Runtime protection for AI agents and apps
  • Prompt-injection and jailbreak prevention
  • Data-leakage detection in prompts
  • Shadow-AI discovery across apps and browsers
  • Policy controls by user, app and action
  • AI red-teaming and adversarial testing
  • Payment fraud analysis and risk scoring
  • Proxy and VPN detection
  • IP and country intelligence lookups
  • IBAN and card issuer verification
  • Content moderation for profanity
  • User data scoring and validation
  • Free DeepSeek chat (web and app)
  • Open API platform
  • V-series and R-series reasoning models
  • DeepSeek-V4 with long context and stronger agent ability
  • OpenAI/Anthropic-compatible API
  • Extensive published model lineup
  • ChatLLM access to multiple top AI models
  • AI agents and automation
  • No-code full-stack app creation
  • Enterprise generative AI platform
  • Structured ML model building
  • Optimization and forecasting
Use cases
  • Red-teaming and jailbreaking LLMs
  • Earning bounties for AI exploits
  • Learning AI attack techniques
  • Competing against other researchers
  • Securing conversational and RAG agents
  • Governing employee use of AI tools
  • Adversarial testing before deploying GenAI
  • Meeting AI compliance requirements
  • Blocking fraudulent payments before checkout
  • Detecting and stopping fake account signups
  • Preventing account-takeover attacks
  • Moderating user-generated text content
  • Free AI chat and assistance
  • Building apps via API
  • Reasoning and coding tasks
  • Low-cost LLM inference
  • Chat with many AI models in one place
  • Build and deploy ML models
  • Automate tasks with AI agents
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