Refact.ai Agent vs Lumen
Comprehensive side-by-side comparison — features, pricing, performance, and more.
Trust & Reliability
Refact.ai Agent
Trust data not available yet
Too Close to Call
Lumen (6.6) vs Refact.ai Agent (6.4) — difference of 0.2 points
Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →
Refact.ai Agent
6.4
avg score
Lumen
6.6
avg score
Both tools score very similarly overall — the best choice depends on your specific priorities.
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
Refact.ai Agent
Lumen
* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology
Refact.ai Agent is best for
Lumen is best for
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Pros & Cons
Refact.ai AgentPros
- Open-source and self-hostable for maximum data privacy and control
- Integrates deeply with existing IDEs and development tools
- Supports a wide range of LLMs including Claude, GPT-4o, Grok, Gemini, DeepSeek, Mistral
- Continuously learns and improves from user interactions and feedback
- Offers both autonomous agent capabilities and in-IDE coding assistance
- Provides dedicated support for enterprise users from setup to fine-tuning
Cons
- Cloud version is shutting down, focusing on self-hosted and enterprise solutions
- Requires technical expertise for self-hosting and fine-tuning
- Free tier has limited daily usage for the autonomous AI Agent
- Specific context window limits for chat are 32k (Free) and 64k (Pro)
- No visual builder or low-code option for non-developers
LumenPros
- 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
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Dimension Comparison
Refact.ai Agent
6.4
/ 10
Lumen
6.6
/ 10
Dimension Breakdown
Ease of Use
AIHow intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?
Output Quality
AIHow accurate, reliable, and useful are the outputs this product generates?
Value for Money
AIHow well does the pricing match the features and output quality delivered?
Customization
CalculatedHow much can users tailor workflows, settings, prompts, or outputs to their needs?
Support
AIHow strong is the documentation, customer support, community, and learning resources?
Integration
CalculatedHow well does it connect with other tools, APIs, and workflows?
Accuracy & Reliability
AIFactual accuracy and hallucination resistance
Compliance & Data Protection
CalculatedCompliance certifications and data-protection posture, aggregated from verified compliance signals
Performance
CalculatedLatency + throughput speed
Task Completion
AIEnd-to-end task success rate
Tool Use Correctness
AIPicks the correct tool + correct arguments
Planning Quality
CalculatedMulti-step planning depth + replanning capability
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
Refact.ai Agent
Task
Lumen
* Task scores (1–10) are algorithmically generated from publicly available data.