Models
Choosing a model
If you're not sure where to start, use GPT-5.6 Sol, our flagship model for complex reasoning and coding. Choose GPT-5.6 Terra to balance intelligence and cost, or GPT-5.6 Luna for cost-sensitive, high-volume workloads.
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-5.6 Sol for complex reasoning and coding, choose GPT-5.6 Terra to balance intelligence and cost, or use GPT-5.6 Luna for cost-sensitive, high-volume workloads.
Specialized models
Purpose-built for specific tasks.
Image
Models for image generation and editing
Realtime
Models for realtime speech and translation
GPT-Realtime-2.1
Reasoning model with tool use
GPT-Realtime-2.1 mini
Reasoning model with tool use
GPT-Realtime-2
Reasoning model with tool use
GPT-Realtime-Translate
Streaming speech-to-speech translation model
GPT-Realtime-1.5
The best voice model for audio in, audio out
GPT-Realtime mini
A cost-efficient version of GPT-Realtime
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
