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Foundational skills · University tool

Stanford AI Playground

A university-hosted place to use several leading AI models with your SUNet ID, at no cost, without sending your work to a vendor. This guide covers what it is, how to drive it, which model to reach for, what the agents do — and what it deliberately leaves out.

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What it is
A Stanford-run instance of the open-source LibreChat (opens in a new tab) platform, maintained by University IT
Who can use it
Faculty, staff, students, and other Stanford affiliates, with a SUNet ID
Cost
Free to eligible Stanford users
Not approved for
High Risk Data, including PHI and PII — that limit is the point of the next box

The Playground is not a vault. It is a Stanford-managed environment, which is a different claim from approved for anything. Do not enter personal, confidential, or High Risk Data, verify facts, citations, and calculations before you rely on them, and keep a person — you — responsible for the final decision. Stanford’s Responsible AI guidelines (opens in a new tab) are the governing document.

The model names in part two were current in autumn 2025. Vendors rename, retire, and add models constantly; treat the names as examples and the model menu in the Playground as the authority.

Part one

What it is, and how to use it

One secure interface to models from several vendors, reached with the credentials you already have.

Six things to know how to do

1. Log in and set up

Go to aiplayground.stanford.edu (opens in a new tab) and sign in with your SUNet ID. The first time, you may meet an Information Release screen: choose a duration and accept. Read the data use policies while you are there — the Playground is not approved for High Risk Data.

2. Prompt, and attach files

Type in the text field and press Enter. Attach PDFs, CSVs, Word files, or images with the paperclip icon. Once an answer comes back you can edit the prompt and re-run it, copy the reply, or use Fork to branch the conversation and try a different direction without losing the first one.

3. Explore and compare models

The dropdown at the top switches models mid-conversation. To compare, select one model, click the + button, then select a second: your next prompt goes to both and the answers appear side by side. Part two is about which two to pick.

4. Use assistants and agents

Azure Assistants includes a data and code analyst that can work through a file you upload. Agents connects the model to outside services — web search, ScholarAI for academic papers, Wolfram for computation, image generation. Part three covers the ones worth knowing at SLS.

5. Customize and control

The right-hand panel is where you save prompts you reuse, adjust model parameters such as temperature and output length, manage uploaded files, and group conversations with bookmarks.

6. Share a conversation

Share creates a view-only URL for a conversation. Only someone who can authenticate with a SUNet ID can open it, and you can manage or delete every link you have made under Settings → Data Controls.

How it compares to the public tools

The honest summary is that the Playground trades the newest features for a managed environment. Both halves of that trade are real.

The Stanford AI Playground compared with public AI tools
FeatureStanford AI PlaygroundExternal AI tools
Security and privacy Stanford-managed environment with single sign-on; data stays within Stanford systems. Data goes to a third-party vendor, under whatever its privacy policy says.
Model access Several vetted models — OpenAI, Google, Anthropic — in one interface. Usually one vendor’s models.
Cost Free to eligible Stanford users. Paid subscription or usage-based billing.
Newest features Added after Stanford review for safety and compliance, so later. Direct, early access to the newest models and experiments.
Best for Safe experimentation, prototyping, and compliant workflows for academic work. Niche capabilities, or the absolute latest version of a model.

Where to ask questions

Two Slack channels, for two different kinds of question.

For technical support, submit a Help request through Stanford IT; the UIT service page (opens in a new tab) is the official home of the tool, and the Playground itself carries a feedback form.

Part two

Choosing a model

The Playground is not one tool but a menu of them. Knowing what each family is good at is most of the skill, and none of it requires understanding how they work.

Azure OpenAI

The ChatGPT models

The versatile workhorses. For legal work they are good at drafting communications, sketching an initial argument, and turning something complicated into plain English. The more capable ones will analyze a document or write code for computational tasks.

“Azure” is Microsoft’s cloud. An Azure OpenAI model is OpenAI’s technology delivered through Microsoft’s enterprise cloud, which is the part that matters to Stanford: it is what makes the security and data-handling story different from the consumer app.

Best for: general drafting, complex reasoning, document analysis.

Reach for it when: you want a reliable writing partner, or a legal concept explained simply.

Anthropic

The Claude models

Built with an explicit emphasis on safety, and unusually good with long documents. That makes them useful for reviewing a lengthy contract, summarizing a deposition, or working through extensive case law: a large context window means more of the document is in view at once, and the analysis holds together better across it.

Best for: summarizing long texts, code analysis, careful writing.

Reach for it when: you have a dense document to interrogate, or a nuanced argument to draft.

Google

The Gemini models

Known for speed and very large context windows. The “flash” versions are made for quick work — a translation, an email — while the Pro versions take an enormous amount of text at once, on the order of a very long book. Useful for deep research across a pile of material, and for reading charts and images rather than only text.

Best for: multimodal analysis, complex coding, deep research.

Reach for it when: the volume is the problem, or the source is not plain text.

DeepSeek

The model to run here rather than anywhere else

DeepSeek is an open model, so its architecture is more transparent than its commercial counterparts, and in the Playground it will show its reasoning as it works. For a profession where the rationale matters as much as the conclusion, that is worth having.

It is also the clearest argument for using a managed environment at all: running DeepSeek outside a vetted one carries security and data-privacy risk you do not need to take, and inside the Playground you get the transparency without exposing your work.

Best for: coding, technical questions, math, logic.

Reach for it when: you want to watch how a model reasons through a problem, step by step.

Comparing two models on the same prompt

The Playground’s best feature, and the fastest way to learn what the differences actually are: send one prompt to two models and read the answers next to each other.

  1. Select your first model from the dropdown at the top of the page.
  2. Click the plus icon (+) in the top menu. The selected model’s name appears in the prompt field.
  3. Select your second model from the dropdown.
  4. Type your prompt and press Enter.
  5. Read the two answers side by side.

Part three

Agents

The specialized tools in the model menu, and what the word means here — which is not what it means in the news.

Two different things called “agent”

In the Playground, an Agent is a specialized tool that gives a model one specific capability — these used to be called plugins. Select ScholarAI and you have equipped the model to search a database of academic papers. It uses the tool; you still direct the process.

Agentic AI, the phrase in every headline, means something else: a more autonomous system that reasons, plans, and carries out a series of tasks toward a goal without being told each step. The Playground’s agents are not that.

Think of the Playground’s agents as on-demand specialists you can call in to help a generalist.

The agents worth knowing at SLS

Stanford-specific resources

A secure, quick way to query the University’s own documents.

Research and scholarship

These connect the model to knowledge bases outside it.

Content generation

How to turn them on. Select Agents from the model menu, then choose the specialist that fits the task. The Playground FAQs (opens in a new tab) cover the rest, and there is a NotebookLM notebook of this guide (opens in a new tab) you can ask questions of directly.

Part four

Beyond the Playground

What the Playground leaves out is a decision, not an oversight. Knowing what is missing tells you when to open something else — and what you are accepting when you do.

What it intentionally leaves out

Consumer apps carry capabilities the Playground does not offer:

Six things the consumer apps do that this does not

Read your Google files and email

Gemini extensions can look through your Gmail or Drive with your permission — summarize a long thread, pull facts out of a folder, draft a reply with links back to the source. You keep control and can withdraw the access.

Produce an auto-researched, cited report

Deep research and web search modes browse many pages, compare what they find, and return an organized report with links you can check. Ask for a comparison of three degree programs and you get sections, trade-offs, and references.

Work in a builder rather than a chat

ChatGPT Canvas and Claude Artifacts open a panel where you and the model co-edit text or code, preview the result, and iterate in one place.

Run code over your spreadsheet

Upload a file and have the assistant clean it, chart it, and run statistics on it. ChatGPT’s advanced data analysis runs Python in a private sandbox to do this.

Talk to it

ChatGPT, Gemini Live, and Claude support real-time voice, which is the difference between using AI at a desk and using it while walking.

Build a reusable assistant

For a task you repeat, ChatGPT has custom GPTs and Gemini has Gems — your own small expert, with its own instructions and starter files.

Stay in the Playground when you want to

  • Try different models on Stanford-managed infrastructure
  • Draft, summarize, or get coding help without connecting a personal account
  • Keep it simple — nothing to install, no permissions to grant

Open a consumer app when you need to

  • Search the live web and get a source-backed report
  • Let the model read your own Gmail or Drive
  • Work in a canvas on long writing or live code
  • Upload data and have it analyzed and charted
  • Use your voice

And Perplexity, the “answer engine”

Perplexity (opens in a new tab) is a public tool that searches the live web and shows its sources beside each answer. It is built for quick, checkable answers, and it is not a Stanford-managed environment. What it adds:

Good fit for finding and citing current information, or gathering sources you intend to verify. Use the Playground instead when you want the managed environment, or when you are drafting and thinking rather than searching.

Other playgrounds worth knowing

Google AI Studio

A prototyping environment for Gemini models, with prompts exportable to code. Developer-facing.

Open AI Studio → (opens in a new tab)

Hugging Face

The community’s ecosystem: test thousands of models, or read the notebooks and demos other people have published.

Open Hugging Face → (opens in a new tab)

Microsoft Copilot Studio

A low-code way to build your own copilots and wire them to business data and processes.

Open Copilot Studio → (opens in a new tab)

OpenAI Playground

A developer environment for OpenAI’s newest models. Requires a payment method.

Open the OpenAI Playground → (opens in a new tab)

Before you use any of them on real work. Walk through the PAUSE Rule, and if a term on this page is new, it is probably in AI Explained Using Analogies. This is an unofficial guide maintained by the Robert Crown Law Library; University IT owns the Playground itself.