gpt-5-chat

Historical specifications. - Chat Completions API. - Responses API . - Input : Text/Image - Output : Text only

Context
128K
Max output
16K

Capabilities

Infrastructure
Streaming

Details

Provider Azure AI Foundry
Creator OpenAI
Familygpt-5
License—
Status—
Typechat
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window128K tokens
Max input—
Max output16K tokens
Reasoning tokens—
Knowledge cutoff
Release date—
Sourceofficial

Family Comparison: gpt-5

ModelContextMax out
gpt-5-chat128K16K
gpt-5-codex400K128K
gpt-5-mini400K128K
gpt-5-nano400K128K
gpt-5-pro400K128K
GPT-5 series400K128K

API

GET/v1/models/azure/gpt-5-chat

gpt-5-chat

Historical specifications. - Chat Completions API. - Responses API . - Input : Text/Image - Output : Text only

Changes · 5 entries
gpt-5-chatupdateca7a400Nov 2, 2026, 03:02 AM
modalitiesinput["text"]→["text","image"]
descriptionHistorical specifications. - Chat Completions API. - Resp...
knowledge_cutoff2024-09-30
context_window128000
max_output_tokens16384
tagline- Chat Completions API.
gpt-5-chatupdate17bcfbfSep 11, 2026, 06:36 AM
description- Chat Completions API. - Responses API . - Input : Text/...→Historical specifications. - Chat Completions API. - Resp...
gpt-5-chatupdate73d11c6May 18, 2026, 03:39 AM
description- Chat Completions API. - Responses API . - Input : Text/...
knowledge_cutoff2024-09-30
context_window128000
max_output_tokens16384
tagline- Chat Completions API.
gpt-5-chatupdate2b100acMar 23, 2026, 05:30 AM
model_typechat
gpt-5-chatcreate7f5c66fMar 21, 2026, 05:16 AM