Models
Choosing a model
If you're not sure where to start, use gpt-5.5, our flagship model for complex reasoning and coding. If you're optimizing for latency and cost, choose a smaller variant like gpt-5.4-mini or gpt-5.4-nano.
All latest OpenAI models support text and image input, text output, multilingual capabilities, and vision. Models are available via the Responses API and our Client SDKs.
Frontier models
Start with gpt-5.5 for complex reasoning and coding, or choose gpt-5.4-mini and gpt-5.4-nano for lower-latency, lower-cost workloads.
Specialized models
Purpose-built for specific tasks.
Image
Models for image generation and editing
Realtime
Models for realtime speech-to-speech
Speech generation
Models for generating natural-sounding speech from text
Transcription
Models for transcribing speech into text
Browse our full catalog of models
Diverse models for a variety of tasks
