Chat with GPT-4o mini

OpenAI's fastest, cheapest frontier model — great default.

No signup required — 10,000 session credits for guests. 50,000 free credits on account creation.

Provider
OpenAI
Model slug
openai/gpt-4o-mini
Typical cost
Around 200–450 credits per typical message. A 50k signup bonus buys around 125 m…
Availability
On Faceb.ai · chat + API

About GPT-4o mini

GPT-4o mini is OpenAI's small-but-capable model — roughly 25× cheaper per token than full GPT-4o, with quality that's plenty for everyday tasks. The default pick when you want OpenAI quality at fraction cost.

What it's good at

1

Dramatically cheaper per message than GPT-4o

2

Still handles vision (at a reduced fidelity)

3

Sub-second first token in most cases

4

128k context window

Pricing on Faceb.ai

Around 200–450 credits per typical message. A 50k signup bonus buys around 125 messages.

Frequently asked — GPT-4o mini

What is GPT-4o mini?

GPT-4o mini is OpenAI's smaller, faster, much cheaper sibling to full GPT-4o — released in July 2024 to replace GPT-3.5-turbo. It keeps multimodal support.

When should I use GPT-4o mini vs GPT-4o?

Use mini for summarisation, day-to-day Q&A, drafting emails, quick code explanations. Reach for full GPT-4o when the task needs deep reasoning or careful code architecture.

Is GPT-4o mini free to use?

You get 50k credits on signup. A GPT-4o mini message costs ~200–450 credits, so that's roughly 100+ free messages.

Is GPT-4o mini good for coding?

For boilerplate and small edits, yes. For architecture-level refactors, Claude 3.5 Sonnet or full GPT-4o are better picks.

Does GPT-4o mini support images?

Yes, it accepts image input — at reduced fidelity compared to full GPT-4o, but plenty for screenshots and diagrams.

What's the context window?

128,000 tokens, same as full GPT-4o.

How does it compare to Claude Haiku?

Both are small-and-fast. Claude Haiku has a larger context window (200k vs 128k); GPT-4o mini has better multimodal support. Try both and pick.

Can I call GPT-4o mini from the API?

Yes. Any API key from /account/api/ can call it. Model slug: openai/gpt-4o-mini.

Why is it so much cheaper than GPT-4o?

It's a much smaller model — fewer parameters means cheaper inference. The trade-off is slightly weaker reasoning, but the cost difference is 20-30×.

Does it have the same knowledge cutoff as GPT-4o?

Yes — same Oct 2023 cutoff in practice, with some refreshes via OpenAI's training pipeline.

Is GPT-4o mini safe to use for customer-facing bots?

Yes — it inherits OpenAI's moderation. Pair it with a clear system prompt and a PII-stripping pass if you're logging transcripts.

Will Faceb.ai always offer GPT-4o mini?

As long as OpenAI serves it. If they deprecate it (they announced one-year notice policies), we'll surface a replacement in the picker before it goes dark.

Or try a different model

Your Faceb.ai credits work for every model — switch per message, no extra subscriptions.

Ready to chat?

One subscription covers every frontier model — switch between them per message. No extra API keys, no extra bills.

Start chatting with GPT-4o mini → Go Pro · $14.99/mo