Skip to main content
Chatref is multi-model: you can pick any AI model for each agent. Models are grouped into four tiers, from cheap-and-fast to deep-reasoning. You choose in the Playground, so each bot can run on the model that fits its job. The default model is GPT-5.4 Mini. It handles everyday support well, so most bots never need to change it.

​
The four tiers

Pricier tiers cost a little more per message but reason more deeply. Start low and move up only if your bot’s answers need it.
TierGood forExample models
BudgetSimple FAQs – the cheapest optionGPT-4o Mini, GPT-5.4 Nano, Gemini 3.1 Flash Lite, Llama 4 Maverick, DeepSeek V4 Pro
StandardEveryday support – the defaultGPT-5.4 Mini (default), Kimi K2.6, Grok 4.3, Gemini 3.5 Flash
PremiumTrickier questions that need more thinkingGPT-4.1, GPT-5.4, Gemini 3.1 Pro, Claude Sonnet 4.6
FlagshipThe hardest reasoningClaude Opus 4.8, GPT-5.5
Models come from seven providers – OpenAI, Anthropic, Google, xAI, Meta, DeepSeek, and Moonshot – all available from the same dropdown.

​
How cost works

Your bot spends from your balance each time it answers, priced by the AI it uses. Higher tiers cost more per message than lower ones. A dental clinic answering routine “What are your hours?” questions does fine on a Budget or Standard model, while a SaaS app fielding deep technical questions may earn its keep on Premium. See How Pricing Works for the full picture.

​
How to change the model

Open the Playground

Go to your agent and open the Playground.
2

Pick a model

In the left panel, open the Model dropdown. Models are grouped by tier – pick the one you want.
3

Deploy

Click Deploy to save it. Test a few questions in the live preview to see how the new model answers.
Start with the default. Only move up a tier if your bot’s answers need deeper reasoning – it’s the simplest way to keep costs down.

​
Next steps

The Playground

Where you pick the model and test how it answers.

How Pricing Works

See how each message is priced by the model and tokens used.