GPT-4o on Multio

On Multio, GPT-4o is available alongside 100+ other AI models under one account. Switch between models mid-conversation without losing context.

Chat with GPT-4o →

Every major model, one app

GPT-4o specs

SpecGPT-4o
ProviderOpenAI
Free tierNo
Context window128K tokens
Max output tokens16K tokens
Input modalitiesText, Image, File
Output modalitiesText
Input price (per 1M tokens)$2.50/M
Output price (per 1M tokens)$10.00/M
  • Vision
  • Coding
  • Long context
  • by OpenAI

Use GPT-4o without a separate subscription

One Multio account unlocks GPT-4o by OpenAI alongside every other leading AI model — 100+ total, 10+ free. Switch models mid-conversation without losing context.

Compare GPT-5 vs other AI models

FAQ

Is GPT-4o on Multio free?
Multio's free tier covers 30+ AI models. GPT-4o is available on paid plans with generous included credits.
How does GPT-4o compare to other AI models?
Run GPT-4o alongside GPT-5, Claude, Gemini and other leading models on Multio to see head-to-head responses on your own prompts.
Can I use GPT-4o with my own files?
Yes. Upload PDFs, docs, code, and images — GPT-4o will ground its answers in your files automatically.
Who makes GPT-4o?
GPT-4o is built by OpenAI and made available on Multio via OpenRouter routing.