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# NeMo Studio Experiments

> Group evaluations into experiments, drill into results, and compare runs side by side.

Use **Evaluations > Experiments** in the NeMo Studio workspace sidebar to group evaluations for comparison, and to drill into evaluation results and individual runs.

Experiments is enabled by default. An administrator can disable it by setting `studio.feature_flags.experiment: false` in the platform configuration and restarting Studio.

## Create an Experiment

Select **New experiment** from the Experiments list. In the **Create experiment** tab, provide a name, an optional description, and a default sort order for the experiment's evaluations, then select **Create**.

The modal also has **NeMo Assistant** and **CLI command** tabs. **CLI command** shows an equivalent `nemo agents experimentalist run` invocation, with `--train-dataset` and `--validation-dataset` selecting the training and validation data; **NeMo Assistant** is a placeholder for a future guided flow.

## Experiment Detail

Select an experiment to open its detail page, which shows aggregate metrics across its evaluations and a table of the evaluations in the group. Toggle **Pareto view** to plot evaluations on a chart instead of the table, by default cost against latency. Change either axis to cost, latency, or any evaluator's score (`cost_usd`, `latency_ms`, or `evaluators.<name>`); the selection is saved per experiment.

Select **Edit** to update the experiment's name, description, or default sort order.

If the experiment was created from an Optimizer insight, an **Insight description** card appears with a link back to that insight. See [NeMo Studio Insights](/documentation/studio/insights).

## Evaluation Drill-Down

Select an evaluation from an experiment's table to open its detail page, which shows aggregate metrics for that evaluation and a table of its test-case runs (sessions).

Select a session to open its detail page — the same trace and span view used by **Traces**, scoped to that test case. See [NeMo Studio Traces](/documentation/studio/traces).

## Compare Runs Side by Side

From a session's detail page, select **Compare against…** and choose another run of the same test case. Studio splits the view into two columns — the current run on the left, the selected run on the right — so you can compare trace output side by side. Select **Clear** to return to the single-run view.

## Related Topics

* [Experiments](/documentation/evaluate-models/experiments)
* [NeMo Studio Insights](/documentation/studio/insights)
* [NeMo Studio Traces](/documentation/studio/traces)
* [NeMo Studio Agents](/documentation/studio/agents)
* [About NVIDIA NeMo Studio](/documentation/studio)