GPT-5.5 Bio Bug Bounty Launched to Strengthen Advanced AI Capabilities

OpenAI has launched the GPT‑5.5 Bio Bug Bounty program to enhance safeguards against emerging biological threats tied to advanced artificial intelligence systems.

As large language models evolve, concerns are growing that malicious actors, including advanced persistent threats (APTs) and independent attackers, could exploit AI to accelerate harmful biological research.

The initiative aims to proactively identify vulnerabilities before they can be weaponized in real-world scenarios.

By inviting cybersecurity researchers, biosecurity experts, and AI red teamers, OpenAI is strengthening its defense strategy against high-risk misuse cases.

Addressing AI-Driven Biosecurity Risks

Modern AI models are capable of processing and generating highly technical biological content. While beneficial for research and education, this capability introduces potential risks if safeguards are bypassed.

Threat actors could manipulate AI systems to obtain restricted biological knowledge, potentially aiding in the development of harmful agents.

OpenAI’s new program focuses on identifying these weaknesses early through controlled and ethical testing.

The bug bounty reflects a broader industry shift toward integrating biosecurity into AI risk management frameworks, particularly as models become more powerful and accessible.

At the core of the program is the “universal jailbreak” challenge. In AI security, a jailbreak refers to a specially crafted prompt designed to bypass built-in safety filters and ethical guardrails.

Participants are tasked with developing a single prompt capable of consistently forcing GPT‑5.5 to answer a strict five-question biosafety challenge.

The attack must be executed in a clean chat session without triggering moderation systems or backend alerts.

This challenge requires advanced prompt engineering skills and a deep understanding of how AI models interpret complex biological queries.

Testing is limited to GPT‑5.5 running within the Codex Desktop environment, ensuring a controlled and monitored setup.

OpenAI has structured the bounty with competitive rewards to reflect the difficulty of the challenge. The first researcher to successfully achieve a universal jailbreak will receive a top prize of $25,000.

Additional discretionary rewards may be granted for partial findings that provide meaningful threat intelligence. The program timeline is as follows:

• Applications opened on April 23, 2026, and closed on June 22, 2026
• Testing begins on April 28, 2026, and ends on July 27, 2026

This phased approach allows OpenAI to manage participation while maintaining strict oversight.

Due to the sensitive nature of biological data, participation in the program is tightly controlled. OpenAI is inviting vetted bio red teamers while also reviewing applications submitted through its official portal.

Applicants must provide identity details, organizational affiliation, and relevant expertise in AI security or biology.

Approved participants must also sign a strict Non-Disclosure Agreement (NDA), preventing any public disclosure of prompts, findings, or communications.

The GPT‑5.5 Bio Bug Bounty operates alongside OpenAI’s broader security initiatives, including its Safety and Security Bug Bounty programs.

By crowdsourcing advanced threat discovery, OpenAI aims to build more resilient guardrails around next-generation AI systems.

This initiative highlights the growing intersection of cybersecurity, artificial intelligence, and biosecurity, signaling a proactive approach to managing future risks.

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