Models
GPT-5.6 is available to select trusted partners in preview. Broad availability coming soon. Learn more.
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.
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GPT-5.5
New
A new class of intelligence for coding and professional work.
Model ID
gpt-5.5
Reasoning
none
low
medium
high
xhigh
Input price
$5 / Input MTok
Output price
$30 / Output MTok
Latency
Fast
Max output
128K tokens
Context window
1M
Tools
Functions, Web search, File search, Computer use
Knowledge cutoff
Dec 1, 2025
GPT-5.4
A more affordable model for coding and professional work.
Model ID
gpt-5.4
Reasoning
none
low
medium
high
xhigh
Input price
$2.50 / Input MTok
Output price
$15 / Output MTok
Latency
Fast
Max output
128K tokens
Context window
1M
Tools
Functions, Web search, File search, Computer use
Knowledge cutoff
Aug 31, 2025
GPT-5.4 mini
Our strongest mini model yet for coding, computer use, and subagents
Model ID
gpt-5.4-mini
Reasoning
none
low
medium
high
xhigh
Input price
$0.75 / Input MTok
Output price
$4.50 / Output MTok
Latency
Faster
Max output
128K tokens
Context window
400K
Tools
Functions, Web search, File search, Computer use
Knowledge cutoff
Aug 31, 2025
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Specialized models

Purpose-built for specific tasks.

Image
Models for image generation and editing
GPT Image 2
State-of-the-art image generation model
Realtime
Models for realtime speech and translation
GPT-Realtime-2
Reasoning model for realtime voice interactions
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
GPT-4o mini TTS
Deprecated
Text-to-speech model powered by GPT-4o mini
Transcription
Models for transcribing speech into text
GPT-Realtime-Whisper
Streaming speech-to-text model for realtime transcription
GPT-4o Transcribe
Speech-to-text model powered by GPT-4o
GPT-4o mini Transcribe
Speech-to-text model powered by GPT-4o mini
Browse our full catalog of models

Diverse models for a variety of tasks

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