9.2 Using Copilot to Summarize the Semantic Model
Key Takeaways
- Copilot can summarize the structure and relationships of the underlying semantic model in natural language.
- Users can ask Copilot questions about what data is available, what measures exist, and how tables relate.
- Copilot summaries help report consumers understand the data before building their own analyses.
- This feature is available in the Power BI Service with Fabric/Premium capacity.
- Copilot can explain complex DAX measures and suggest potential analyses based on the model structure.
Last updated: March 2026
Using Copilot to Summarize the Semantic Model
Quick Answer: Copilot in Power BI can analyze and summarize the semantic model, explaining table relationships, available measures, and data patterns. This helps report builders quickly understand what data is available and what analyses are possible without manually exploring every table and column.
What Copilot Can Do with Semantic Models
Model Structure Explanation
Copilot can describe:
- Tables and their purpose — "The Sales table contains 2.3 million rows of transaction data from 2020-2026"
- Relationships — "Sales connects to Products through ProductKey and to Date through OrderDate"
- Measures — "The model includes 15 measures covering revenue, profit, growth, and customer metrics"
- Data freshness — "The model was last refreshed on March 31, 2026"
Example Prompts for Model Exploration
| Prompt | Expected Response |
|---|---|
| "What tables are in this model?" | List of all tables with row counts and descriptions |
| "How are Sales and Products related?" | Relationship details including cardinality and direction |
| "What measures are available?" | List of defined measures with descriptions |
| "What date range does the data cover?" | Min and max dates across all date-related tables |
| "Suggest analyses I can do" | Recommendations based on available measures and dimensions |
Suggested Analyses
Based on the model structure, Copilot might suggest:
- "Revenue trend by month with year-over-year comparison"
- "Product category analysis with profit margin breakdown"
- "Customer segmentation by region and spending level"
- "Seasonal pattern analysis using the Date hierarchy"
Requirements and Best Practices
Requirements
- Fabric F64+ or Premium capacity
- Copilot enabled by tenant admin
- User must have at least Read access to the semantic model
Best Practices
- Add descriptions to tables and measures — Copilot uses these for better explanations
- Use meaningful names — "Total Revenue" is more useful to Copilot than "Measure1"
- Verify accuracy — review Copilot's understanding of complex relationships
- Combine with manual exploration — use Copilot as a starting point, not the sole source
On the Exam
The PL-300 frequently tests:
- Knowing Copilot's capabilities for model exploration
- Understanding which capacity is required
- Recognizing when Copilot model summaries are appropriate to use
Test Your Knowledge
Which of the following can Copilot help a report builder understand about a semantic model?
A
B
C
D
Test Your Knowledge
A new team member needs to understand the data model before building reports. What is the most efficient way to help them using Power BI features?
A
B
C
D