Devika vs Lumen

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

Updated October 2026

Devika

winfunc (formerly Stition AI)

Open-source agentic AI software engineer (open Devin alternative)

Open Source

73% verification coverage

Lumen

Buildt AI Limited

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

Freemium

73% verification coverage

Trust & Reliability

Devika

Trust data not available yet

Lumen

Trust data not available yet

Overall Winner: Lumen

6.1/10 vs Devika at 3.9/10

Leads in:

Customization

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

Devika

3.9

avg score

Lumen

6.1

avg score

Lumen leads overall — particularly in Ease of Use and Customization and 2 more.

Devika has an edge in Support.

Based on 7 dimensions

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

Overall Winner

Lumen

6.1 / 10

Devika

Best For

Developers experimenting with autonomous coding agents on personal projects

Users who want to run an agentic coder locally against Ollama models

Contributors wanting to help build an open Devin alternative

Developers who need an agent that browses the web while writing code

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

Devika is best for

🎧Customer Support6.0✍️Writing & Content4.0💬Chat & Conversation4.0

Lumen is best for

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

Filter by your use case:

Limitations

Devika

Cons

Explicitly early-stage: 'There are a lot of unimplemented/broken features at the moment'
Requires Python 3.10 to 3.11, Node.js 18+, bun and uv
Requires your own API keys for search (Bing/Google) and for each model provider
Best performance requires the Claude 3 model family per the README's own note

Lumen

Cons

No cons listed yet.

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

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Devika

3.9

/ 10

Lumen

6.1

/ 10

Clear winner

Dimension Breakdown

Ease of Use

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

Devika

1.0

Lumen

5.0▲ +4.0

Customization

Calculated

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

Devika

4.0

Lumen

8.0▲ +4.0

Support

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

Devika

8.0▲ +3.0

Lumen

5.0

Integration

Calculated

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

Devika

1.0

Lumen

6.0▲ +5.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Devika

1.0

Lumen

5.0▲ +4.0

Performance

Calculated

Latency + throughput speed

Devika

5.0

Lumen

6.0▲ +1.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Devika

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

Devika

Task

Lumen

4.0

Bug Detection

6.0

3.0

Code Explanation

6.0

3.0

Refactoring

8.0

4.0

Test Generation

5.0

6.0

Multi Language Support

9.0

4.0

Context Understanding

8.0

4.0

Documentation Generation

5.0

2.0

Performance Optimization

5.0

1.0

Security Scanning

6.0

2.0

Api Management

3.0

2.0

Ci Cd Integration

5.0

2.0

Monitoring Alerts

3.0

* 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, Devika or Lumen?

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

Is Devika cheaper than Lumen?

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

What are the main differences between Devika and Lumen?

Devika — "Open-source agentic AI software engineer (open Devin alternative)". 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 Devika and Lumen together?

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

Does Devika or Lumen have a free plan?

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

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