The bug bounty platform built for AI and ML security
Estimated monthly website visits
Similarweb estimates for this domain, not active users. Only available observation months are shown; collection date is separate from the traffic period.
Collected Nov 11, 2026
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, huntr (huntr.com) is an AI platform indexed under AI Developer Tools generating 45.28K monthly visits with a month-over-month traffic delta of -73.65K (-61.9%). Its primary geographic market is United States (38.2% traffic share), and it operates on a Free pricing model. Top competing alternatives by monthly volume include Models.dev (200.45K visits/mo), AI Grant (4.03K visits/mo), LAION (18.49K visits/mo).
Found a zero-day in an LLM library within my first week.
Awesome leaderboard and fast payouts.
Palo Alto partnership adds serious credibility.
The best bug bounty arena for machine learning models.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Time-boxed hacking challenges targeting LLM assistants, agentic systems and model artifacts, each with explicit objectives and rules.
Compete over a fixed window to climb public rankings and win real cash prizes for top placements.
After a challenge closes, outcomes and techniques are shared so the community can learn from each exploit.
Research coverage extends to ML supply chain targets such as Keras model deserialization and TensorFlow Lambda exploits.
Discord server, blog and FAQ support researchers from first challenge through advanced rankings.
huntr takes the mechanics of a bug bounty marketplace and points them at artificial intelligence and machine learning. Rather than chasing generic web vulnerabilities, hunters pick a challenge, review its rules, and try to break a specific AI assistant, agent or model artifact: convincing a claims assistant to leak a hidden token, getting a stock-trading agent to perform unauthorized trades, or slipping past the guardrails of an assistant designed to keep a secret. Each challenge has clear objectives and a prize pot, and progress is reflected in a public leaderboard ranking.
The workflow is deliberately simple and transparent: choose a battle, move up the leaderboard, win cash. Participants compete over a fixed window, then results and writeups are published, so techniques spread across the community. Featured challenges on the site have carried pots in the range of $15,000. The platform also runs an active blog covering LLM jailbreaks, prompt-injection style bypasses and zero-day intelligence in AI/ML components, including work on Keras model deserialization and TensorFlow Lambda exploits.
huntr is free for researchers to use and is supported by Palo Alto Networks and Prisma AIRS, its AI security platform. That sponsorship structure matters: huntr functions both as a community hunting ground and as a channel for surfacing real vulnerabilities in the AI supply chain, which organizations can then remediate. There is also a Discord community and a FAQ for participants.
Take part in time-boxed challenges that test guardrail bypasses, secret extraction and agent misuse instead of traditional web app flaws.
Practice prompt injection, jailbreak and agent-manipulation tactics in sanctioned environments with published objectives.
Benefit from community research into model file formats and ML libraries that may affect the frameworks your stack depends on.
Start with a challenge, study the published writeups from previous rounds, and build a public track record through the leaderboard.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | huntr | 45.28K | -61.9% | 51% direct | Free | Current |
| 1 | Models.dev | 200.45K | -3.9% | 68% direct | Free | vs Models.dev |
| 2 | AI Grant | 4.03K | -31.2% | 31% direct | Free | vs AI Grant |
| 3 | LAION | 18.49K | -24.1% | 28% direct | Free | vs LAION |
| 4 | clickworker | 1.86M | +0.5% | 51% direct | Contact for Pricing | vs clickworker |
| 5 | Outlier AI | 10.37M | +7.6% | 56% direct | Paid | vs Outlier AI |
| 6 | Open Data Science (ODS.ai) | 159.63K | +15.9% | 69% direct | Free | vs Open Data Science (ODS.ai) |
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