Factory AI vs Lumen

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated August 2026

Factory AI

The San Francisco AI Factory Inc.

Agent-native software development

Enterprise

74% verification coverage

Lumen

Buildt AI Limited

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

Freemium

73% verification coverage

Trust & Reliability

Factory AI

Uptime:99.99%Status page

Customers (per vendor):Comarch

GDPR

SOC 2

Lumen

Uptime:100% (30-day)Status page

Customers (per vendor):Babcock, BT, HSBC +4

GDPR

Too Close to Call

Factory AI (6.8) vs Lumen (6.6) — difference of 0.3 points

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

AI Comparison Summary

Factory AI

6.8

avg score

Lumen

6.6

avg score

Both tools score very similarly overall — the best choice depends on your specific priorities.

Based on 12 dimensions

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

Too close to call — it's a tie

Factory AI

Best For

Enterprise engineering teams automating the full SDLC without compromising security

Fintech companies handling sensitive financial data while leveraging AI for development

AI labs building and deploying models that need accelerated day-0 launches

Global systems integrators looking to unify engineering context and accelerate feature delivery

Consider Alternatives If

Non-technical users seeking a no-code or low-code solution for software development

Small teams or individuals with limited budgets who cannot afford the paid tiers

Organizations that require fully autonomous agents without any human approval steps

Lumen

Best For

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

Consider Alternatives If

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)

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Factory AI is best for

✍️Writing & Content8.0💬Chat & Conversation8.0💻Coding & Dev7.2

Lumen is best for

🤖Automation & Agents9.0🎧Customer Support9.0✍️Writing & Content8.0

Filter by your use case:

Pros & Cons

Factory AI

Pros

Accelerates feature development and project delivery significantly (e.g., 7x faster feature delivery, 18x faster project delivery)
Reduces incident response times and context-switching time (e.g., 40% reduced incident response, 60% reduction in context-switching)
Offers robust security and compliance features including SOC 2, ISO 42001, GDPR, CCPA, and single-tenant VPC hosting
Supports a wide range of frontier and open-weight models, including custom BYOK models
Provides flexible deployment options including cloud and on-premise for data residency and control

Cons

SOC 2 certification is currently Type I, not Type II
Requires explicit human approval for agent-proposed commands before execution
Data retention policy for some Anthropic Mythos-class models is 30 days, requiring admin opt-in
Pricing for Business and Enterprise tiers requires contacting sales, lacking transparency
The platform is primarily developer-focused, potentially requiring technical expertise for full utilization

Lumen

Pros

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

Cons

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

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Output Quality5

Value for Money5

Customization5

Support5

Integration5

Accuracy & Reliability5

Compliance & Data Protection5

Performance5

Task Completion5

Tool Use Correctness5

Planning Quality5

Dimension Comparison

Factory AI

6.8

/ 10

Your pick

Lumen

6.6

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Factory AI

6.0

Lumen

7.0▲ +1.0

Output Quality

How accurate, reliable, and useful are the outputs this product generates?

Factory AI

8.0

Lumen

8.0

Value for Money

How well does the pricing match the features and output quality delivered?

Factory AI

7.0

Lumen

7.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Factory AI

7.0▲ +4.0

Lumen

3.0

Support

How strong is the documentation, customer support, community, and learning resources?

Factory AI

7.0

Lumen

7.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Factory AI

6.0

Lumen

6.0

Accuracy & Reliability

Factual accuracy and hallucination resistance

Factory AI

8.0

Lumen

8.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, aggregated from verified compliance signals

Factory AI

5.0▲ +1.0

Lumen

4.0

Performance

Calculated

Latency + throughput speed

Factory AI

5.0

Lumen

5.0

Task Completion

End-to-end task success rate

Factory AI

8.0

Lumen

8.0

Tool Use Correctness

Picks the correct tool + correct arguments

Factory AI

8.0

Lumen

8.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Factory AI

7.0

Lumen

8.0▲ +1.0

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Factory AI

Task

Lumen

8.0

Code Completion

7.0

Bug Detection

8.0

7.0

Code Explanation

7.0

Refactoring

8.0

7.0

Test Generation

7.0

Multi Language Support

9.0

8.0

Context Understanding

8.0

7.0

Documentation Generation

7.0

6.0

Performance Optimization

8.0

Security Scanning

8.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Factory AI or Lumen?

Both are strong options. Factory AI is a strong choice, while Lumen is a strong choice. The best choice depends on your specific use case, budget, and workflow requirements.

Is Factory AI cheaper than Lumen?

Factory AI starts at free (enterprise model). Lumen starts at free (freemium model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Factory AI and Lumen?

Factory AI — "Agent-native software development". Lumen — "The coding model that actually gets it — specialist coding AI (Cosine)". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

Can I use Factory AI and Lumen together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Factory AI and Lumen with other tools and save your AI toolkit.

Does Factory AI or Lumen have a free plan?

Factory AI is a paid tool. Lumen is available for free. Always verify current pricing directly with the vendor.

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