Home / Vercel AI Gateway / Text Generation

Free GPT-4o-mini API on Vercel AI Gateway

Access gpt-4o-mini free through Vercel's $5 monthly credit.

Updated 7/2/2026Provider trust 98/1003 code examples

About the Model

GPT-4o mini is OpenAI's fast, low-cost multimodal model for chat, extraction, classification, and lightweight vision tasks. It is a strong default when you need fast responses and a large 128K context window.

Why choose it?

Fast and inexpensive: better for high-volume workloads than heavier reasoning models.
Multimodal: supports text and image inputs.
OpenAI-compatible paths: both GitHub Models and Vercel AI Gateway can be called with familiar chat completions code.

Free access options

GitHub Models: free, rate-limited access with a GitHub token. No credit card required.
Vercel AI Gateway: recurring monthly credits through one gateway key. No credit card required to start.

Use GPT-4o mini when you need a dependable free API for prototypes, assistants, summaries, and classification. For deeper reasoning, compare DeepSeek R1 or Claude Sonnet pages in this directory.

View all free providers for GPT-4o-mini

How to Access for Free (via Vercel AI Gateway)

Vercel AI Gateway lets you call GPT-4o mini through one OpenAI-compatible gateway key and recurring monthly credits. It is useful when you want to compare OpenAI, Anthropic, Google, and DeepSeek models without managing separate provider keys.

The free basis is Vercel's monthly gateway credit. Start here if you want a no-credit-card path for GPT-4o mini and may later test other models through the same gateway.

Try it in your browser

Pick a model, paste your own free key, and run. Your key is sent once to call the provider and never stored on our servers.

Code Examples

curl

curl https://ai-gateway.vercel.sh/v1/chat/completions \
  -H "Authorization: Bearer $AI_GATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-4o-mini","messages":[{"role":"user","content":"Write a short checklist for choosing a free AI API."}]}'

python

from openai import OpenAI

client = OpenAI(base_url="https://ai-gateway.vercel.sh/v1", api_key="AI_GATEWAY_API_KEY")
response = client.chat.completions.create(
    model="openai/gpt-4o-mini",
    messages=[{"role": "user", "content": "Write a short checklist for choosing a free AI API."}],
)
print(response.choices[0].message.content)

javascript

import { generateText } from "ai";

const { text } = await generateText({
  model: "openai/gpt-4o-mini",
  prompt: "Write a short checklist for choosing a free AI API.",
});

console.log(text);