Puzzle · Behavioral
Arkose Labs (FunCAPTCHA)
Arkose Labs · USA (San Francisco) · since 2015-01
The 3D rotating shapes you see on Microsoft, Roblox, and OpenAI signups. Adaptive challenges that get harder when risk increases. Pure enterprise pricing, sales call required, but the only tool that consistently breaks sophisticated bot farms.
Audited$2000/mo
Free quota
Custom (typical contract: 1M+ challenges/month)
Pricing
Enterprise from ~$2,000/mo, contract only
// pros
- + Genuinely hard to automate
- + Adapts difficulty per risk signal
- + Enterprise account team and tuning
// cons
- − Sales contact only, no self-serve
- − Adds noticeable friction for real users
- − Pricing starts in mid four figures monthly
// highlights
- ▸3D adaptive puzzles
- ▸Bot detection ML platform
- ▸Enterprise SLA + dedicated support
- ▸Behavioral biometrics
- ▸Used by OpenAI, Microsoft, Roblox
// specs
- Pricing
- $2000/mo
- Open source
- No
- Self-host
- No
- Audited
- Yes
- HQ
- USA (San Francisco)
- Since
- 2015-01
- License
- Proprietary
- Frameworks
- 7 supported