GPT-5 Chat is OpenAI's language model with a 128K context window and up to 16K output tokens, available from 4 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
StatusActive
CreatorOpenAIOpenAI
Providers
Context Window128K tokens
Max Output16K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefaultminimal
Release Date · 11 months ago
Knowledge Cutoff · 2 years ago

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
Web Search
$ / request
Azure AI Foundry logo
Azure AI Foundry
openai:gpt5chat
$1.25$10.00$0.125N/A
OpenAI logo
OpenAI
gpt-5-chat-latest
$1.25$10.00$0.125N/A
OpenRouter logo
OpenRouter
openai/gpt-5-chat
$1.25$10.00$0.125$0.010
Vercel AI Gateway logo
Vercel AI Gateway
openai/gpt-5-chat
$1.25$10.00$0.125N/A

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-5.51.1M$5.00$30.00Available
GPT-5.4 Mini1.1M$0.750$4.50Available
GPT-5.4 Nano1.1M$0.200$1.25Available
GPT-5.41.1M$2.50$15.00Available
GPT-5.3 Codex400K$1.75$14.00Available
GPT-5.2 Codex400K$1.75$14.00Available
GPT-5.2410K$1.75$14.00Available
GPT-5.1410K$1.25$10.00Available
GPT-5.1 Codex400K$1.25$10.00Available
GPT-5.1 Codex Mini400K$0.250$2.00Available
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