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Lumen

Lumen

AI-Native
Formerly Genie.
Best output quality

The coding model that actually gets it — specialist coding AI (Cosine)

GDPR
EU AI Act: Limited
Public status page
No training on your data
Air-gapped
+7
Autonomous
Last updated: Aug 28, 2026
Freemium
Visit Site
More
cosine.sh
Lumen screenshot 1
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Quick Answer

AI

Lumen is an AI coding agent and model system by Cosine, designed for secure software engineering in highly regulated industries. It excels at generating production-quality code, reasoning across complex architectures, and supporting niche languages like COBOL. Lumen achieved a historic 30% on SWE-bench and offers public cloud, single-tenant, and air-gapped deployment options. Pricing starts from $19/month for solo developers, with Team and Enterprise plans available.

About LumenAI

Lumen is an AI coding agent by Cosine, designed for real software engineering work within secure environments. It scales from quick fixes to complex migrations across CLI, cloud, and desktop, helping teams plan, build, and coordinate work with strong visibility and code quality. Lumen is optimized for maintainability, readability, and production-quality outputs, supporting complex architectures.

AI-extracted from public sources. May contain errors. Methodology · Report an error
What Makes Lumen UniqueAI

Lumen is specifically post-trained on real production code for enterprise and niche languages (COBOL, Fortran, Verilog, Rust, complex SQL), enabling it to reason across complex architectures and legacy codebases, outperforming generalist models in secure, air-gapped environments.

Decision Intelligence

Best For

AI
Engineering teams in highly regulated industries needing secure, air-gapped AI coding capabilities
Organizations working with legacy systems and niche programming languages like COBOL or Fortran
Enterprise development teams requiring production-quality code generation and complex architecture reasoning
Software development teams seeking to improve code quality and accelerate development cycles in secure environments
Cybersecurity teams needing specialized AI for red teaming and secure code analysis

Consider Alternatives If

AI
Non-coding tasks (Lumen is specialized for software engineering)
Teams without strict security or data privacy requirements (its core value is in secure environments)
Users expecting automatic code integration without human review (outputs require manual checking)
Pricing Overview

Type

Freemium

Starting Price

$0/mo

Free Trial

No

Credit Card

Not Required

Free Plan

Yes

Dimension Scores

· 6.6 avg

How good it is, across universal quality axes

Ease of Use7/10
Output Quality8/10
Value for Money7/10
Customization3/10
Support7/10
Integration6/10
Accuracy & Reliability8/10
Compliance & Data Protection4/10
Performance5/10
Task Completion8/10
Tool Use Correctness8/10
Planning Quality8/10
AI-analyzed from product data·Medium confidenceHow we score

Task Scores

· 7.7 avg

What it can do, on category-specific tasks

Multi Language Support9/10
Bug Detection8/10
Refactoring8/10
Context Understanding8/10
Performance Optimization8/10
Security Scanning8/10
Code Completion7/10
Code Explanation7/10
Test Generation7/10
Documentation Generation7/10

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Capabilities
Code
Automation
Memory
Agent
Browsing
Categories
Code Assistant
Cybersecurity
Developer Platform
Multi Agent Systems
ProsAI
  • +Specialized training on production code for superior software development outcomes
  • +Supports a wide range of niche and enterprise programming languages
  • +Flexible deployment options including public cloud, single-tenant, and air-gapped environments
  • +Integrates into existing developer workflows via CLI, cloud, and desktop interfaces
  • +Offers multi-agent orchestration and external tool access via MCP for complex tasks
LimitationsAI
  • -Requires access to existing software code repositories for full functionality
  • -No refunds are payable for any fees paid under any circumstances
  • -Fair usage limits may apply, leading to suspension or termination if exceeded
  • -Outputs are not automatically integrated into code repositories, requiring manual review and incorporation
  • -Does not process personal data on behalf of users, limiting its use for PII-sensitive codebases
Integrations & Connections
3 connections
GI
GitHubNative

Integrates with GitHub for code hosting and pull requests

CH
ChatGPTAPI

Authenticates with ChatGPT for model access

CL
Claude MaxAPI

Authenticates with Claude Max for model access

Auto-updated

Fit Score

Complexity

Advanced

Company Size

Solo
Small
Medium
Enterprise

Team Size

Individual
Small Team
Large Team

Skill Level

Expert
Features
Optimized for maintainability and readability
Built for complex architectures and legacy codebases
Supports niche languages including COBOL, Fortran, Verilog, Rust, and complex SQL
Terminal-native interface with local-to-remote execution
External tool access via Model Context Protocol (MCP)
Multi-agent orchestration
Cloud collaboration for parallel coding tasks
Managed single-tenant cloud deployment option
Technical Capabilities
SDK Available
MCP Compatible
Multi-Agent
Human-in-Loop (unknown)
Can Use Tools (unknown)
Team Features
Webhook Support
Has Demo
Function Calling (unknown)
Sandbox Mode
Audit Logs
No Signup
Works Offline
Requires Host App
Framework
MCP Server
Digital Employee

Deployment

Hybrid
A2A Protocol:
MCP
Compliance, Privacy & Trust
GDPR (as claimed): Yes
SOC 2 (as claimed): No
HIPAA (as claimed): No
Trains on user data: No
Model isolation: Air Gapped
Human review:
Recommended
Tech Specs
Response time (est.):
Moderate

The Model(s) Behind It

Model details — extracted from public vendor sources by our pipeline (Smart Generator + A3 cross-referencing) or admin-entered. Shown as claimed by the vendor; not independently audited by Intelloro.

Powered By
Bring-your-own-model — connects to 17+ models
Supported Tools
Terminal
File System
Web Browser
Plugins
Free
Free
    Most Popular
    Starter
    $19/month
    • 4M credits/month
    • $6.50 per 1M add-on credits
    Team
    $199/month
    • 47M credits/month
    • $5.00 per 1M add-on credits
    Enterprise
    $999/month
    • 240M credits/month
    • $4.50 per 1M add-on credits

    Pricing verified from the vendor pricing page.

    Alternatives

    Top Lumen alternatives in the same category, ranked by quality.

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    freemium

    Enterprise orchestration platform for AI coding agents

    Devin

    Devin

    paid

    The AI software engineer

    Cline

    Cline

    open_source

    AI coding, open source and uncompromised

    Kiro

    Kiro

    freemium

    Move beyond AI coding to agentic engineering

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    User Reviews

    No reviews yet. Be the first to review!

    Who It's For
    4 roles
    Software DevelopersComputer ProgrammersWeb Developers+1 more
    Platform, Content & Languages
    1 content types
    1 languages
    CodeEnglish+4 more

    Output Languages

    English

    Content Types

    Code

    Accepts

    Code
    Text

    Produces

    Code
    Text
    Languages: English

    Frequently Asked Questions

    Trust Score

    83/100

    Very Good

    Based on 10 data signals

    Confidence: Medium

    Reflects publicly available data, not an independent audit

    Compliance & Verified21/38
    GDPRYes
    EU AI ActYes
    Human ReviewYes
    Operational35/35
    Uptime (measured)100% (30-day)
    Status PageYes
    Data ResidencyUS, EU
    Market Proof10/10
    Notable CustomersBabcock, BT, HSBC
    Company17/17
    Company ListedYes
    Team Size11-50
    FundingSeed
    Health—

    Not yet checked

    AI-Assisted Data

    Some details are AI-generated estimates — verify with the vendor.

    AI-generated estimate: Best For, Description, Limitations, Not Good For, Pros, Quick Answer, What Makes Unique

    How we source data

    AI Governance & Regulatory Disclosures

    Legally-sensitive fields — extracted from public vendor sources by our pipeline (Smart Generator + A3 cross-referencing) or admin-entered. Shown as claimed by the vendor; not independently audited by Intelloro.

    EU AI Act Risk Tier
    Limited (Article 50 transparency)
    EU AI Act Article 50 Disclosure
    Not declared
    COPPA Compliance (US under-13)
    Not declared

    Switching & Migration

    Migration Difficulty
    Significant Effort

    Email

    Quick Stats
    Agent TypeAutonomous
    PlanningAdvanced
    CategoryCoding Agents
    PlatformsWeb, CLI
    Launched2024
    Company & Links

    Company Name

    Buildt AI Limited

    Formerly

    Genie

    Founded

    2022

    Based in

    United Kingdom

    Last major update

    May 2026

    Funding

    Seed · $3M

    DocumentationChangelog
    LinkedInTwitter/X