Models and presets

NUFI can offer several AI models. You choose which one answers each conversation, and you can fine-tune how it replies.

Pick a model

The list updates automatically — when your admin adds a new model, refreshing the page is enough to see it. Newer or larger models are usually more capable but slower and cost more against your budget; smaller models are faster and cheaper. Try a few and see what fits.

Tune the response style

Open Parameters from the left icon rail. A panel slides out where you can shape how the model behaves:

The settings you'll actually reach for:

• Custom Instructions — what the model should know before your first message: a persona, a tone, standing rules. This steers the whole conversation. ("You are a concise assistant. Reply in Vietnamese.")
• Temperature — low (near 0) for precise, repeatable answers (code, summaries, data). High (near 1) for creative, varied answers (brainstorming, copy-writing).
• Max Output Tokens — caps how long a single reply can be.
• Web Search — toggle live web lookups for this conversation (see Web search).

The advanced controls (Top P, frequency / presence penalty, reasoning effort) are sampling knobs — leave them alone unless you know what you want. Click Reset Model Parameters at the bottom to go back to defaults.

Settings apply to the current conversation only. Start a new chat to reset, or save your favourite combination as a preset.

Presets

A preset is a saved bundle of { model, parameters, instructions } under a name.

• See your presets — click Presets in the top bar. When you have none yet it says "No presets yet, use the settings button to create one."
• Create one — set up a model and its parameters the way you like, then save it from the settings/parameters panel and give it a clear name (e.g. "Code review", "Translation EN→VN", "Friendly reply").
• Use one — pick it from the Presets menu; new conversations start with all its settings applied.
• Import / Clear all — bring in a preset someone exported, or wipe your list, from the same menu.

Saved prompts

A saved prompt is lighter than a preset — just a chunk of text you reuse often, with no model or parameters attached.

Manage them under Prompts in the left icon rail. Insert one mid-conversation by typing / at the start of the message box and picking from the list. Good candidates: frequently-used personas, tedious boilerplate, tone modifiers like "Rewrite in plain English, no jargon."

If the model menu is empty

• Refresh the page once.
• If it's still empty, the platform can't reach the AI provider — ask your admin; they have monitoring that tells them what's wrong.
• If models appear but every reply errors with "unauthorised", open the console once. The first visit sets up your account automatically.