GPT-4o

Vision-language model Generally available

OpenAI high-intelligence flagship model supporting multimodal text and image reasoning across complex analytical, conversational, and technical tasks.

Overview

GPT-4o ('omni') is OpenAI's flagship multimodal model designed to integrate text, visual, and reasoning capabilities natively into a single architecture. Released in May 2024, GPT-4o delivers GPT-4 Turbo-level intelligence while offering significantly faster response times and improved cost efficiency for both developer API workloads and interactive consumer experiences. The model features a 128,000-token context window and supports up to 16,384 output tokens per completion request. It processes text and high-resolution images as native inputs, excelling at vision-language tasks such as document OCR, chart analysis, architectural diagram inspection, and visual reasoning. GPT-4o offers native support for tool and function calling, structured JSON output, system prompts, and log probabilities. GPT-4o is available as a hosted proprietary API endpoint via OpenAI Direct API and major cloud aggregators. It does not provide open weights or support local deployment.

Technical Specifications

Context Window 128,000 tokens
Max Input Tokens 128,000
Max Output Tokens 16,384
Architecture Dense Multimodal Transformer
Released 2024-05-13

Modalities

Text → Text (Both) Image → Text (Input)

Capabilities

Text Generation Code Generation Embeddings Structured Output Reasoning Image Understanding Function Calling Long Context Multilingual Support

Use Cases

Content Creation Coding Assistance Data Analysis Research

Languages

English (en) Spanish (es) French (fr) German (de) Chinese (zh) Japanese (ja) Korean (ko)

Access Routes

Route Type Protocol Region / Scope Provider Status
OpenAI API Hosted API (Direct provider) OpenAI-compatible REST API Global OpenAI Available
Azure OpenAI Hosted API (Azure OpenAI) OpenAI-compatible REST API Azure regions OpenAI Available

Provider

OpenAI

Family: GPT-4o

Identifiers

  • gpt-4o Canonical identifier Default
  • gpt-4o-2024-08-06 Canonical identifier Default
  • gpt-4o-2024-11-20 Alias
  • gpt-4o-2024-05-13 Alias
  • gpt-4o Alias Default

Sources

Compare

See how this model stacks up against others.

Compare with Other Models

Platform Status

Optix AI is under active development. Verified model records, pricing schemas, deployment guides, and published benchmark data are being added progressively. Our mission is to provide transparent AI model discovery and comparison with clearly sourced facts.

Data Verification: Ongoing curation and manual verification of model specifications against official sources.
Regular Updates: Addition of newly released commercial and open-source models as records are verified.
Developer First: Built with transparency, clearly sourced facts, and community feedback.