Ellipsis AI vs Lumen

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

Updated October 2026

Ellipsis AI

Ellipsis AI Inc.

Cloud platform for coding agents

Freemium

80% verification coverage

Lumen

Buildt AI Limited

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

Freemium

73% verification coverage

Trust & Reliability

Ellipsis AI

Users:10K-100K

Customers (per vendor):Mosaic, Onfleet

SOC 2

Lumen

Trust data not available yet

Overall Winner: Lumen

6.1/10 vs Ellipsis AI at 5.3/10

Leads in:

Customization

Planning Quality

Performance

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

AI Comparison Summary

Ellipsis AI

5.3

avg score

Lumen

6.1

avg score

Lumen leads overall — particularly in Ease of Use and Compliance & Data Protection and 1 more.

Ellipsis AI 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

Ellipsis AI

Best For

Engineering teams governing AI coding agents across multiple repositories

Platform teams needing audit trails and budget controls for AI development

Developers automating repetitive coding tasks like dependency updates and code reviews

Organizations requiring secure, isolated environments for AI agent execution

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

Ellipsis AI is best for

✍️Writing & Content7.0💬Chat & Conversation7.0🔍Research6.0

Lumen is best for

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

Filter by your use case:

Limitations

Ellipsis AI

Cons

Agents are defined in YAML and invoked through an API

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

Ellipsis AI

5.3

/ 10

Lumen

6.1

/ 10

Your pick

Dimension Breakdown

Ease of Use

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

Ellipsis AI

3.0

Lumen

5.0▲ +2.0

Customization

Calculated

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

Ellipsis AI

7.0

Lumen

8.0▲ +1.0

Support

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

Ellipsis AI

7.0▲ +2.0

Lumen

5.0

Integration

Calculated

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

Ellipsis AI

7.0▲ +1.0

Lumen

6.0

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

Ellipsis AI

3.0

Lumen

5.0▲ +2.0

Performance

Calculated

Latency + throughput speed

Ellipsis AI

5.0

Lumen

6.0▲ +1.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Ellipsis AI

5.0

Lumen

8.0▲ +3.0

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

Ellipsis AI

Task

Lumen

2.0

Code Completion

6.0

7.0

Bug Detection

6.0

Code Explanation

6.0

Refactoring

8.0

6.0

Test Generation

5.0

6.0

Multi Language Support

9.0

7.0

Context Understanding

8.0

5.0

Documentation Generation

5.0

4.0

Performance Optimization

5.0

4.0

Security Scanning

6.0

3.0

Api Management

3.0

6.0

Ci Cd Integration

5.0

* 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, Ellipsis AI or Lumen?

Both are strong options. Ellipsis 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 Ellipsis AI cheaper than Lumen?

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

What are the main differences between Ellipsis AI and Lumen?

Ellipsis AI — "Cloud platform for coding agents". 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 Ellipsis AI and Lumen together?

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

Does Ellipsis AI or Lumen have a free plan?

Ellipsis AI is available for free. Lumen is available for free. Always verify current pricing directly with the vendor.

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