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About

GPT-5.5-Cyber is an advanced cybersecurity-focused AI model designed for verified defenders working on authorized security research, vulnerability discovery, and remediation. The model pairs stronger cyber capabilities with more permissive behavior for specialized workflows that require deep analysis across complex software environments. It can help identify security-relevant components, trace vulnerable code paths, validate likely issues in controlled settings, develop and test patches, and prepare evidence for human review. GPT-5.5-Cyber is built to support the full remediation loop rather than simply generating more findings. The model shows stronger benchmark performance than GPT-5.5 on CyberGym, ExploitGym, and SEC-bench Pro, reflecting improvements in vulnerability reproduction, exploit reasoning, and long-horizon security tasks. GPT-5.5-Cyber is intended for advanced, authorized cybersecurity work with verification, monitoring, scoped controls, and review.

About

Lumen Outpost is Cosine’s targeted post-trained coding model, benchmarked against Kimi K2.6, its base model, GPT-5.5, GPT-5.4, and Gemini 3.1 Pro on highly complex, long-horizon coding tasks across 13 programming languages. The model is specialized not only for raw coding accuracy, but also for behavioral signals that matter in professional engineering workflows, including agent initiative, planning, scope discipline, action alignment, concise updates, and useful communication. Cosine’s benchmark report shows that highly targeted post-training transformed the base model’s capabilities, with Lumen Outpost outperforming Kimi K2.6 across Niche-Bench, Slop-Bench, Vibe-Bench, and cost per successful task. On Niche-Bench, an internal evaluation for niche, legacy, and environment-constrained programming languages, Lumen Outpost achieved a 53.9% score and led or tied in 9 of 13 assessed languages, with notable gains in Fortran, ABAP, Java, and Rust.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

GPT-5.5-Cyber is best suited for verified cybersecurity defenders, security researchers, vulnerability management teams, application security engineers, incident response teams, software security teams, and organizations that need authorized AI support for vulnerability discovery, validation, patching, remediation, and evidence preparation.

Audience

Professional engineering teams that need a cost-efficient AI coding model for complex, long-horizon software tasks across mainstream and niche programming languages

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

$20 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

Cosine
United Kingdom
cosine.sh/blog/lumen-outpost-benchmark-report

Alternatives

Alternatives

GLM-5

GLM-5

Z.ai
Composer 2

Composer 2

Cursor
Grok 4.6

Grok 4.6

SpaceXAI
Fugu Cyber

Fugu Cyber

Sakana AI
Athene-V2

Athene-V2

Nexusflow

Categories

Categories

Integrations

ABAP
AWS GovCloud
Amazon Bedrock
Amazon Web Services (AWS)
Fortran
GPT-5.5
GPT-5.6 Luna
GPT-5.6 Sol
GPT-5.6 Sol Ultrafast
GPT-5.6 Terra
GPT-6 Astra
GPT-6 Luna
GPT-6 Sol
Java
OpenAI
OpenAI Daybreak
Rust

Integrations

ABAP
AWS GovCloud
Amazon Bedrock
Amazon Web Services (AWS)
Fortran
GPT-5.5
GPT-5.6 Luna
GPT-5.6 Sol
GPT-5.6 Sol Ultrafast
GPT-5.6 Terra
GPT-6 Astra
GPT-6 Luna
GPT-6 Sol
Java
OpenAI
OpenAI Daybreak
Rust
Claim GPT-5.5-Cyber and update features and information
Claim GPT-5.5-Cyber and update features and information
Claim Lumen Outpost and update features and information
Claim Lumen Outpost and update features and information