MLOps applies DevOps principles to machine learning—but ML has unique challenges that standard DevOps practices don't address. This guide explains the relationship, key differences, and metrics that matter for ML systems.
"MLOps is DevOps plus data versioning, model tracking, and drift detection. The code is only half the system."
What Is MLOps?
MLOps (Machine Learning Operations) extends DevOps practices to machine learning systems. The core difference: ML systems depend on both code AND data. Changes to either can break production.
Why ML Needs Special Treatment
- Data dependency: Model behavior depends on training data, not just code
- Model drift: Models degrade over time as real-world data changes
- Reproducibility: Same code + different data = different model
- Experimentation: ML development involves many failed experiments
- Explainability: Need to understand why models make decisions
MLOps vs. DevOps Comparison
| Aspect | DevOps | MLOps |
|---|---|---|
| Primary Artifact | Code (versioned in Git) | Code + Data + Model |
| Testing | Unit, integration, E2E | + Data validation, model validation |
| CI/CD Pipeline | Build → Test → Deploy | + Train → Evaluate → Register |
| Monitoring | Latency, errors, uptime | + Model drift, data drift, prediction quality |
| Rollback | Deploy previous code version | Deploy previous model + may need retraining |
MLOps-Specific Metrics
Model Quality Metrics
| Metric | Definition | Why It Matters |
|---|---|---|
| Model Accuracy | Prediction correctness on holdout data | Core quality measure |
| Model Drift | Accuracy degradation over time | Triggers retraining |
| Data Drift | Input distribution change | Early warning of model issues |
| Prediction Latency | Time from request to prediction | User experience |
Operational Metrics
| Metric | Definition | Target |
|---|---|---|
| Training Time | Time to train a model | Depends on model size |
| Model Deployment Frequency | How often models are updated | Varies by use case |
| Experiment Success Rate | % of experiments that improve metrics | >20% (ML is experimental) |
| Time to Production | Experiment to deployed model | Days to weeks (not months) |
/// Our Take
Most teams don't need MLOps—they need DevOps for their ML code first.
If your ML team deploys manually and doesn't have CI/CD, starting with "MLOps platforms" is premature. Get basic DevOps working (version control, automated testing, CI/CD), then layer on ML-specific tools (experiment tracking, model registry, drift monitoring).
MLOps Tools Landscape
| Category | Tools | Purpose |
|---|---|---|
| Experiment Tracking | MLflow, Weights & Biases, Neptune | Track experiments, compare results |
| Feature Stores | Feast, Tecton, Databricks Feature Store | Manage and serve features |
| Model Registry | MLflow, SageMaker, Vertex AI | Version and stage models |
| Orchestration | Kubeflow, Airflow, Dagster | Pipeline automation |
| Monitoring | Evidently, Arize, WhyLabs | Drift detection, model quality |
📊 How CodePulse Fits
CodePulse tracks the software engineering side of ML development:
- Code velocity: PR cycle time for ML code changes
- Collaboration: Code review patterns for ML repos
- Delivery: How often ML code ships (distinct from model deployment)
For model-specific metrics (drift, accuracy), use dedicated MLOps monitoring tools. For engineering metrics, use CodePulse.
When to Invest in MLOps
You Need MLOps When:
- Multiple models in production
- Models need frequent retraining
- Data scientists spending >50% time on operations
- Model quality issues in production
- Compliance/audit requirements for ML
You Don't Need MLOps (Yet) When:
- One or two models, updated rarely
- Still proving ML value to the business
- Basic DevOps isn't working yet
- Small team (<3 ML practitioners)
Related Guides
- DevOps Automation Metrics Guide — Foundation for MLOps
- DORA Metrics Guide — Delivery metrics apply to ML too
- DevOps Toolchain Guide — Understanding the full toolchain
Conclusion
MLOps extends DevOps to handle the unique challenges of machine learning: data versioning, model tracking, drift detection, and experiment management. But the foundation is still good DevOps—version control, CI/CD, monitoring, and automation.
"In ML, the code is reproducible but the model isn't—unless you track the data and parameters too."
Get DevOps fundamentals right first. Layer on MLOps tools as ML maturity grows. Track your ML engineering metrics with CodePulse while using dedicated MLOps tools for model-specific monitoring.
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