> For the complete documentation index, see [llms.txt](https://docs.layerlens.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.layerlens.ai/3.-pricing/free-tier-details.md).

# Free tier details

## What's included

* **Stratix Public — fully unlocked.** Browse 175+ models, 52+ benchmarks, 2,000+ public evaluations. Compare any two models head-to-head. Browse public spaces. Read quarterly reports. Search the catalog.
* **Stratix Premium — starter access.** A Premium account at `stratix.layerlens.ai` with starter ECU credits.
* **One organization.** Premium operates with a single org; you can be invited to other orgs but won't have admin elsewhere.
* **Basic seats.** Add teammates to your single org.
* **Python SDK and CLI.** `pip install layerlens --extra-index-url https://sdk.layerlens.ai/package` and `layerlens` CLI both work with a Free-tier API key.
* **In-app Assistant.** Context-aware help inside Premium.
* **Community support.** Public forum and docs.

## What's not included

* **Larger ECU balances.** Buy more under Premium PAYG.
* **Multi-org admin.** Free tier accounts are admin of one org.
* **SSO.** Available on Enterprise.
* **Data residency selection.** Available on Enterprise.
* **Hybrid or self-hosted deployment.** Available on Enterprise.
* **Custom contractual terms.** Available on Enterprise.

## What you can build on Free

Plenty.

* Run a real evaluation against your own dataset on a small candidate-model set.
* Build a custom LLM judge and GEPA-optimize it on a small labeled set.
* Wire the SDK into a personal project's CI gate.
* Browse the catalog and quarterly reports for research.

When you outgrow the starter ECU, upgrade to Premium PAYG without changing your code or your account.

## How to get started

1. Browse [Stratix Public](https://stratix.layerlens.ai) — no signup required.
2. When you want to run a private evaluation, [sign up](/2.-get-started/sign-up.md) for a Free Premium account.
3. Install the [SDK](/2.-get-started/sdk.md) when you want to automate.

## Where to next

* [Premium tier details](/3.-pricing/premium-tier-details.md)
* [Concept: ECU credits](/11.-admin/concepts-ecu-credits.md)
* [Getting started](/3.-pricing/03-pricing.md)


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