# Public vs Premium — feature matrix

A definitive table of what each surface does and doesn't do.

| Capability                                 | Stratix Public                | Stratix Premium                    |
| ------------------------------------------ | ----------------------------- | ---------------------------------- |
| Browse models catalog                      | yes                           | yes                                |
| Browse benchmarks catalog                  | yes                           | yes                                |
| Browse public evaluations                  | yes                           | yes                                |
| Browse public spaces                       | yes                           | yes                                |
| Compare models head-to-head                | yes                           | yes                                |
| Search the catalog                         | yes                           | yes                                |
| Test prompt against a model                | yes (rate-limited, anonymous) | yes (persistent)                   |
| Run private evaluation on your data        | no                            | yes                                |
| Build LLM-backed scorers                   | no                            | yes                                |
| Build LLM judges (versioned, GEPA-tunable) | no                            | yes                                |
| Author custom code graders                 | no                            | yes (via SDK / evaluation runtime) |
| GEPA judge optimization                    | no                            | yes                                |
| Upload traces                              | no                            | yes                                |
| Trace evaluation                           | no                            | yes                                |
| Agentic evaluation                         | no                            | yes                                |
| Save evaluation spaces                     | no                            | yes                                |
| BYOK custom models                         | no                            | yes                                |
| Multi-org / team management                | no                            | yes                                |
| ECU credits                                | n/a (free)                    | yes (PAYG)                         |
| Settings, notifications                    | no                            | yes                                |
| In-app Assistant                           | no                            | yes                                |

## When to use which

* **Use Public** for research, model selection shortlist, citing reproducible evaluations.
* **Use Premium** for everything that involves your data — private evaluations, judges, traces, CI/CD gates.

## Switching between them

Logged-in Premium users see a **Switch toggle** in the top bar. It flips the catalog views between Public-only and Premium-augmented (where Premium adds your private items to the same browse experience).

## Where to next

* [Stratix Public](https://github.com/LayerLens/gitbook-full/blob/main/05-select/catalog/README.md)
* [Stratix Premium](https://github.com/LayerLens/gitbook-full/blob/main/05-select/catalog/premium-workspace-overview.md)
* [Sign up for Premium](/2.-get-started/sign-up.md)


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