OpenAI: GPT-4 Turbo

OpenAIID: openai/gpt-4-turbo

The latest GPT-4 Turbo model with vision capabilities. Vision requests can now use JSON mode and function calling. Training data: up to December 2023.

Pricing per 1M Tokens

Input (Prompt)$10
Output (Completion)$30
Cache ReadFree
Cache WriteFree
ImageN/A

Specifications

Context Length128K
Max Output Tokens4K
Input ModalitiesText + Image
Output ModalitiesText
TokenizerGPT
Instruct TypeN/A
Top Provider Context128K
Top Provider Max Output4K
ModeratedYes

Compare this model

See how OpenAI: GPT-4 Turbo stacks up against other models.

vs OpenAI: GPT-5.4 Nanovs OpenAI: GPT-5.4 Minivs OpenAI: GPT-5.4 Provs OpenAI: GPT-5.4vs OpenAI: GPT-5.3 Chat

More from OpenAI

OpenAI: GPT-5.4 Nano
Input$0.20
Context400K
OpenAI: GPT-5.4 Mini
Input$0.75
Context400K
OpenAI: GPT-5.4 Pro
Input$30
Context1.1M
OpenAI: GPT-5.4
Input$2.50
Context1.1M
OpenAI: GPT-5.3 Chat
Input$1.75
Context128K

Last updated: March 23, 2026

First tracked: March 23, 2026