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GPT-4o

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OpenAI flagship GPT with text + image inputs and 128K context

Updated Dec 7, 2025
AI ModelPay-per-useAPI
Last reviewed: Dec 7, 2025Details verified against vendor changelogs and hands-on usage.
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Pricing and features change frequently—confirm on the vendor site.

About

GPT-4o (“o” for omni) is OpenAI’s fast, high-intelligence GPT model for general tasks. It accepts text and image inputs and returns text outputs (including structured outputs) via the Chat Completions API. It supports cached prompts, batch processing, fine-tuning, and snapshots, with a 128K context window and up to 16,384 output tokens. Knowledge cutoff: Oct 1, 2023.

Key Features

  • 128K token context window with up to 16,384 output tokens
  • Text and image inputs with text outputs and structured outputs
  • Fast, high-intelligence flagship GPT optimized for general tasks
  • Available via Chat Completions API; supports tool calling and JSON mode
  • Supports snapshots (gpt-4o-2024-11-20, gpt-4o-2024-08-06, gpt-4o-2024-05-13), cached prompts, and Batch API pricing (from $1.25 / 1M input, $5 / 1M output)
  • Fine-tuning, distillation, and predicted outputs supported; knowledge cutoff Oct 1, 2023

Use Cases

  • General-purpose chatbots and assistants
  • Text and image understanding with structured outputs
  • Content generation with JSON schemas
  • Code generation and review when paired with tools

Technical Details

Languages

AI Models

gpt-4ogpt-4o-2024-11-20gpt-4o-2024-08-06gpt-4o-2024-05-13

Integrations

OpenAI API

Frequently Asked Questions

What is GPT-4o?

GPT-4o (“o” for omni) is OpenAI’s fast, high-intelligence GPT model for general tasks. It accepts text and image inputs and returns text outputs (including structured outputs) via the Chat Completions API. It supports cached prompts, batch processing, fine-tuning, and snapshots, with a 128K context window and up to 16,384 output tokens. Knowledge cutoff: Oct 1, 2023.

How much does GPT-4o cost?

GPT-4o offers pay-per-use pricing. Plans include: Standard: $2.50 / 1M input, $1.25 / 1M cached input, $10 / 1M output, Batch: $1.25 / 1M input, $5 / 1M output (cached input not discounted).

What AI models does GPT-4o use?

GPT-4o is powered by gpt-4o, gpt-4o-2024-11-20, gpt-4o-2024-08-06, gpt-4o-2024-05-13.

What platforms does GPT-4o support?

GPT-4o is available on API.

What can GPT-4o do?

GPT-4o provides code generation, AI chat. Key features include: 128K token context window with up to 16,384 output tokens, Text and image inputs with text outputs and structured outputs, Fast, high-intelligence flagship GPT optimized for general tasks.

Related Articles

Pricing

Standard

$2.50 / 1M input, $1.25 / 1M cached input, $10 / 1M output
  • Chat Completions API with tool calling and JSON mode

Batch

$1.25 / 1M input, $5 / 1M output (cached input not discounted)
  • Lower-cost processing via Batch API

Company

Name
OpenAI
Founded
2015
Location
San Francisco, CA

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