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What is GrapheneOS?

GrapheneOS is an open-source mobile operating system designed with a strong emphasis on privacy and security while ensuring compatibility with Android applications, and it is created as a non-profit endeavor. The project focuses on enhancing privacy and security technologies, incorporating substantial improvements in sandboxing techniques, exploit mitigation methods, and a refined permission framework. In addition to these features, GrapheneOS develops a variety of applications and services aimed at further enhancing user privacy and security. One notable offering is Vanadium, an enhanced version of the Chromium browser and WebView that is specifically optimized for use within GrapheneOS. The operating system also provides a secure PDF viewer and a hardware-backed Auditor application that allows for both local and remote verification of device integrity, thereby ensuring users can have confidence in the security of their devices. This comprehensive strategy not only reinforces user safety but also fosters a more trusted mobile environment for all individuals. By prioritizing these elements, GrapheneOS seeks to redefine what users can expect from their mobile operating systems.

What is GPT-5.5-Cyber?

GPT-5.5-Cyber is an advanced AI model designed for authorized cybersecurity professionals who need stronger support for vulnerability research, codebase analysis, and remediation. The model builds on GPT-5.5’s general-purpose intelligence while adding more capable and permissive behavior for specialized defensive security workflows. It is designed to help reduce unnecessary refusals for verified defenders while still pairing advanced capabilities with verification, monitoring, scoped controls, and review. GPT-5.5-Cyber can sustain deeper analysis across large and complex codebases, making it useful for identifying security-relevant components and tracing how vulnerabilities may be reached. It can also help validate likely issues in controlled environments, develop and test patches, and organize evidence for human security teams. The model is intended to support the full remediation loop, helping defenders move from discovery to validation to fix preparation instead of only producing raw vulnerability findings. In benchmark testing, GPT-5.5-Cyber outperformed GPT-5.5 on CyberGym, ExploitGym, and SEC-bench Pro. These results show improved performance in reproducing known vulnerabilities, reasoning through exploitability, and handling long-horizon vulnerability discovery and proof-of-concept workflows. The model is also being evaluated through complex repositories and real remediation workflows as coordinated disclosures conclude. GPT-5.5-Cyber is positioned as a higher-capability option for defenders whose authorized work requires the most advanced cyber support, while GPT-5.5 with Trusted Access for Cyber and Codex Security remains the recommended starting point for most defenders. GPT-5.5-Cyber helps qualified security teams work faster, validate vulnerabilities more effectively, and support safer remediation across critical software systems.

Media

Media

Integrations Supported

AWS GovCloud
Amazon Bedrock
Amazon Web Services (AWS)
Android
GPT-5.5
GPT-5.6 Luna
GPT-5.6 Sol
GPT-5.6 Terra
GPT-6
OpenAI
OpenAI Daybreak

Integrations Supported

AWS GovCloud
Amazon Bedrock
Amazon Web Services (AWS)
Android
GPT-5.5
GPT-5.6 Luna
GPT-5.6 Sol
GPT-5.6 Terra
GPT-6
OpenAI
OpenAI Daybreak

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided
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

GrapheneOS

Date Founded

2014

Company Location

Canada

Company Website

grapheneos.org

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Categories and Features

Categories and Features

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