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OpenAI GPT-4o - AI Language Models Tool

Overview

OpenAI GPT-4o ("o" for omni) is a multimodal flagship model designed for text, vision, and emerging audio workflows. It brings GPT‑4–level reasoning and coding performance into a lower‑latency, higher‑throughput model family: OpenAI describes GPT‑4o as roughly 2× faster than GPT‑4 Turbo, about half the cost, and with substantially higher rate limits, while offering improved non‑English language handling. ([openai.com](https://openai.com/index/hello-gpt-4o/?utm_source=openai)) GPT‑4o supports text and image inputs today and has audio features available in preview/testing channels; the model provides a 128k context window for long documents and supports structured outputs, streaming, function calling, and fine‑tuning/ snapshots for reproducible deployments. It is available through OpenAI’s API and is also surfaced via Microsoft’s Azure AI / Azure OpenAI catalog and Foundry Models, making it usable for enterprise workflows, assistants, and analytics pipelines. Benchmarks published by OpenAI and Microsoft show GPT‑4o scoring ahead of GPT‑4 Turbo on multilingual and multimodal tasks. ([platform.openai.com](https://platform.openai.com/docs/models/gpt-4o?utm_source=openai))

Installation

Install via pip:

pip install --upgrade openai
export OPENAI_API_KEY="<your_api_key>"  # set env var (Linux/macOS)
pip install azure-ai-inference  # optional: Azure Foundry / inference helpers
export AZURE_OPENAI_API_KEY="<your_azure_key"; export AZURE_OPENAI_ENDPOINT="https://<your-endpoint>"  # Azure setup

Key Features

  • 128k context window for long documents, transcripts, and multi‑file reasoning tasks. ([platform.openai.com](https://platform.openai.com/docs/models/gpt-4o?utm_source=openai))
  • Multimodal inputs: accepts text and images now; audio features available via preview/testing. ([platform.openai.com](https://platform.openai.com/docs/models/gpt-4o?utm_source=openai))
  • Higher throughput: marketed as ~2× faster with ~50% lower cost than GPT‑4 Turbo. ([openai.com](https://openai.com/index/hello-gpt-4o/?utm_source=openai))
  • Structured outputs, JSON mode, parallel function calling and streaming for production assistants. ([ai.azure.com](https://ai.azure.com/catalog/models/gpt-4o?utm_source=openai))
  • Designed for stronger non‑English and vision performance, with benchmark scores published by OpenAI/Microsoft. ([ai.azure.com](https://ai.azure.com/catalog/models/gpt-4o?utm_source=openai))

Community

Developer and press response has highlighted GPT‑4o’s speed, multilingual and multimodal gains while also raising safety and persuasion concerns in external reviews and system cards. Early adopters praise faster latency and higher message limits; enterprise usage is growing via Azure Foundry and OpenAI’s API. OpenAI and Microsoft documentation and community posts provide examples, cookbooks, and preview notes for vision and audio workflows. ([openai.com](https://openai.com/index/hello-gpt-4o/?utm_source=openai))

Last Refreshed: 2026-01-16

Key Information

  • Category: Language Models
  • Type: AI Language Models Tool
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