FrontierOpenAI
GPT-4o
Context
128K tokens
Pricing
$2.50/M input, $10/M output
Modalities
text, image, audio, code
Released
May 2024
- Overview
- OpenAI's May 2024 omni-modal model, processing and generating text, images, and audio natively. Once the flagship behind ChatGPT, GPT-4o has been superseded by the GPT-5 line but remains a widely deployed legacy workhorse.
- Why it matters
- GPT-4o's native multimodal design — text, images, and audio in a single model rather than chained specialists — set the architecture pattern every major vendor now follows. It powered ChatGPT through its biggest growth phase, which means an enormous installed base of integrations still targets it. Today its main relevance is as legacy surface area: enterprises with GPT-4o-era pipelines face the same migration math as Claude 3.x-era teams, and OpenAI's GPT-5.6 tiers are the recommended path forward. Its history is a useful benchmark for how fast 'the default model' turns over.
Key strengths
- Native omni-modal processing (text, image, audio)
- Fastest frontier model at launch
- Largest ecosystem of integrations and tools
- Strong general-purpose performance across all domains
- Powered ChatGPT through its biggest growth era
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