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Huntr

Huntr is a bug bounty platform for AI/ML.

Checked 3 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Huntr

At a glance

Starts at Free No paid plan found on the vendor's site, September 2026.
Free tier Yes
Platforms Web
Best for AI security researchers, hackers.
Not for Beginner security researchers

3.9 out of 5

Scored by Alex after real use

Our verdict

It's designed for competitive hacking and rewarding top performers. If you're just looking to test basic vulnerabilities in AI models, this might be overkill.

✓What it does well

Competitive RankingEarn advanced rankings based on performance.
Cash PrizesWin real cash for solving top-ranked challenges.
Transparent ProcessClear steps from challenge selection to ranking and rewards.

✕Where it falls short

No Basic ScansNot suitable for finding basic vulnerabilities in AI models.
Complex Challenges OnlyFocuses on complex challenges requiring advanced skills.
Limited PlatformCurrently only available online, no local or mobile apps.

Key features

ChallengesFeatures unique AI hacking challenges.
LeaderboardTracks performance on a public leaderboard.
Sponsored ChallengesSupported by major security firms like Palo Alto Networks.
keras model deserialization vulnerabilitiesexploits in keras lambda functions

Questions about Huntr

What is Huntr?

Huntr is a bug bounty platform for AI and machine learning. It runs AI hacking challenges, tracks performance on a public leaderboard, and pays real cash prizes for solving top-ranked challenges, with some challenges sponsored by security firms such as Palo Alto Networks.

Is Huntr free to join?

Huntr is listed as free, and no paid plan was found on the vendor's site in September 2026. Toolio shows a Free plan at $0. It runs on the web only, with no local or mobile apps.

Is Huntr good for beginners?

No. The reviewer says Huntr focuses on complex challenges that require advanced skills, and Toolio lists beginner security researchers under who it is not for. Anyone just looking to test basic vulnerabilities in AI models may find it overkill, since it offers no basic scans.

Who is Huntr for?

Huntr suits AI security researchers and hackers who enjoy competitive hacking. The reviewer says it is built to reward top performers, with advanced rankings based on performance and a transparent process from challenge selection through to rankings and rewards.

How does Toolio score Huntr?

Toolio scores Huntr 3.9 out of 5, rated by Alex on 3 Oct 2026 after real use. Huntr has been listed on Toolio since September 2024, under development tools for network security.

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