GPT-5 Chat is OpenAI's language model with a 128K context window and up to 16K output tokens, available from 2 providers, starting at $1.25 / 1M input and $10.00 / 1M output. A conversational snapshot of GPT-5 previously used in ChatGPT, supporting tool use, vision, file input, image generation, and reasoning.
Specifications
Canonical IDopenai-gpt-5-chat
TypeLanguage
StatusDeprecated
CreatorOpenAIOpenAI
Providers
Context Window128K tokens
Max Output16K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefaultminimal
Release Date · 1 year ago
Knowledge Cutoff · 2 years ago
Deprecation Date

Capabilities

Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling✓
Structured Outputs✓
Native JSON Schema✓
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
openai:gpt5chat
$1.25$10.00$0.125
OpenAI logo
OpenAI
gpt-5-chat-latest
$1.25$10.00$0.125

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-6.1 Sol1.1M$2.00$10.00Available
GPT-6 Sol1.1M$2.00$10.00Available
GPT-6 Luna1.1M$0.100$0.500Available
GPT-6 Astra1.1M$10.00$50.00Available
GPT-5.6 Sol1.1M$4.00$20.00Available
GPT-5.6 Terra1.1M$2.00$12.00Available
GPT-5.6 Luna1.1M$0.200$1.20Available
GPT-5.51.1M$5.00$30.00Available
GPT-5.4 Mini400K$0.750$4.50Available
GPT-5.4 Nano400K$0.200$1.25Deprecating
GPT-5 Chat128K$1.25$10.00Current

Model IDs

azure/gpt-5-chat
azure/gpt-5-chat-latest
gpt-5-chat
gpt-5-chat-latest
openai-gpt-5-chat
openai/gpt-5-chat
openrouter/openai/gpt-5-chat