Devin vs Lumen

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

Updated August 2026

Devin

Cognition Labs

The AI software engineer

Paid

74% verification coverage

Lumen

Buildt AI Limited

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

Freemium

73% verification coverage

Trust & Reliability

Devin

Customers (per vendor):Nubank

SOC 2

Lumen

Uptime:100% (30-day)Status page

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

GDPR

Overall Winner: Devin

7.2/10 vs Lumen at 6.6/10

Leads in:

Task Completion

Planning Quality

Integration

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

AI Comparison Summary

Devin

7.2

avg score

Lumen

6.6

avg score

Devin leads overall — particularly in Customization and Integration.

Based on 12 dimensions

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

Overall Winner

Devin

7.2 / 10

Devin

Best For

Engineering teams managing complex, multi-repo projects

Developers automating code migrations and refactors

Software development teams needing autonomous bug fixing and issue triage

Enterprises seeking to accelerate modernization of legacy systems

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

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

Devin is best for

✍️Writing & Content8.0💬Chat & Conversation8.0🔍Research8.0

Lumen is best for

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

Filter by your use case:

Limitations

Devin

Cons

Requires Python 3.10+ for local use (inferred from typical dev tools)
Usage quotas apply to paid plans, with extra usage at API pricing
No explicit mention of support for non-coding tasks
No visual builder or low-code option for non-developers
Limited model availability on the free plan

Lumen

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

Devin

7.2

/ 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?

Devin

7.0

Lumen

7.0

Output Quality

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

Devin

8.0

Lumen

8.0

Value for Money

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

Devin

7.0

Lumen

7.0

Customization

Calculated

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

Devin

6.0▲ +3.0

Lumen

3.0

Support

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

Devin

7.0

Lumen

7.0

Integration

Calculated

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

Devin

8.0▲ +2.0

Lumen

6.0

Accuracy & Reliability

Factual accuracy and hallucination resistance

Devin

8.0

Lumen

8.0

Compliance & Data Protection

Calculated

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

Devin

4.0

Lumen

4.0

Performance

Calculated

Latency + throughput speed

Devin

5.0

Lumen

5.0

Task Completion

End-to-end task success rate

Devin

9.0▲ +1.0

Lumen

8.0

Tool Use Correctness

Picks the correct tool + correct arguments

Devin

8.0

Lumen

8.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Devin

9.0▲ +1.0

Lumen

8.0

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

Devin

Task

Lumen

7.0

Code Completion

7.0

8.0

Bug Detection

8.0

7.0

Code Explanation

7.0

8.0

Refactoring

8.0

7.0

Test Generation

7.0

Multi Language Support

9.0

8.0

Context Understanding

8.0

Documentation Generation

7.0

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, Devin or Lumen?

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

Is Devin cheaper than Lumen?

Devin starts at free (paid model). Lumen starts at free (freemium model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Devin and Lumen?

Devin — "The AI software engineer". 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 Devin and Lumen together?

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

Does Devin or Lumen have a free plan?

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

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