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What is GPT‑5.6‑Cyber?

GPT-5.6-Cyber is OpenAI’s cybersecurity-specific model for approved defenders who need advanced capabilities for authorized security research and defensive operations. The model is available through Daybreak Red and is built on GPT-5.6 Sol with additional training for specialized cybersecurity tasks. It is designed to improve support for vulnerability discovery, exploit validation, security testing, exploit-chain reasoning, malware analysis, incident response, secure code review, patch validation, and vulnerability report writing. OpenAI introduced GPT-5.6-Cyber as part of an expanded Daybreak program that gives trusted defenders access to advanced AI capabilities before offensive AI is widely deployed by attackers. Daybreak Blue gives approved users access to frontier general-purpose models with defensive-security safeguards, while Daybreak Red provides access to purpose-trained cybersecurity models for more advanced authorized work. GPT-5.6-Cyber is intended to reduce unnecessary refusals in legitimate research scenarios that still require careful oversight because of their dual-use nature. OpenAI reports that the model performs strongly on internal cybersecurity completion evaluations and improves on certain benchmark tasks related to exploit development and vulnerability research. The model has also been used by OpenAI researchers to study real-world software, identify vulnerabilities, and support coordinated vulnerability disclosure. Access to Daybreak is controlled through identity verification, account security, monitoring, legal attestations, approved-use restrictions, and additional protective measures. OpenAI recommends sandboxing and isolating security workflows, monitoring agent actions, using auto-review mode, defining scope clearly, and enforcing permissions for higher-risk work.

What is Claude Mythos 5?

Claude Mythos 5 is Anthropic’s restricted-access Mythos-class AI model built for trusted organizations that require the highest level of Claude capability. The model shares the same underlying architecture as Claude Fable 5, but is offered with certain safeguards removed for approved use cases and vetted users. Claude Mythos 5 is designed for advanced cybersecurity, software engineering, scientific discovery, long-context reasoning, and autonomous research workflows. It is initially deployed through Project Glasswing for cyberdefenders and critical infrastructure providers. The model is intended to help security teams analyze complex systems, support defensive cybersecurity work, and protect important software environments. Claude Mythos 5 also demonstrates major potential in life sciences, where it can assist with protein design, binding-site selection, bioinformatics workflows, and research hypothesis generation. Anthropic reports that the model can carry out extended technical tasks, recover from failures, and operate with a high degree of autonomy. Its capabilities in genomics include assembling large-scale single-cell datasets and designing custom machine learning approaches for biological research. Because these capabilities may be dual-use, Anthropic limits access through trusted programs and applies a 30-day retention policy for Mythos-class traffic. The model is priced at $10 per million input tokens and $50 per million output tokens. Claude Mythos 5 helps vetted organizations apply frontier AI to critical defense, infrastructure, and scientific problems while maintaining controlled access and oversight.

Media

Media

Integrations Supported

Amp
Anything
Augment Code
Bind AI
Brokk
CLion
Claude Cowork
Claude Design
Elixir
Hermes Agent
Java
LaunchLemonade
Lovable
Node.js
Oxen.ai
PyCharm
RubyMine
Rust
Vellum
WebStorm

Integrations Supported

Amp
Anything
Augment Code
Bind AI
Brokk
CLion
Claude Cowork
Claude Design
Elixir
Hermes Agent
Java
LaunchLemonade
Lovable
Node.js
Oxen.ai
PyCharm
RubyMine
Rust
Vellum
WebStorm

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Pricing Information

$10 per 1 million (input)
$10 per million input tokens and $50 per million output tokens
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Company Facts

Organization Name

Anthropic

Date Founded

2023

Company Location

United States

Company Website

claude.ai

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