chat-latest
Points to the latest Instant model currently used in ChatGPT.
Specs
- Context
- 400K
- Max output
- 128K
- Input price
- $5/ 1M tokens
- Output price
- $30/ 1M tokens
- Released
- 2026-05-05
Context
- Context window
- 400K
- Max input
- 272K
- Max output
- 128K
Pricing · USD / 1M tokens
- Input
- $5
- Output
- $30
- Cache read
- $0.5
- Cache write
- —
Modalities
- Input
- TextImage
- Output
- Text
API
- API types
Reasoning
- Not published
Info
- Status
- Active
- Released
- 2026-05-05
- Knowledge cutoff
- 2025-08-31
Features
- Confirmed
How to call
1 provider
openaimodel = chat-latest
chat
POSThttps://api.openai.com/v1/chat/completions
responses
POSThttps://api.openai.com/v1/responses
JSON
Standard format
{
"id": "chat-latest",
"object": "model",
"created": 1777939200,
"owned_by": "openai",
"name": "chat-latest",
"api": {
"types": [
"chat",
"responses"
]
},
"limits": {
"context": 400000,
"input": 272000,
"output": 128000
},
"modalities": {
"input": [
"text",
"image"
],
"output": [
"text"
]
},
"reasoning": {
"supported": null,
"efforts": []
},
"pricing": {
"currency": "USD",
"unit": "1M_tokens",
"input": 5,
"output": 30,
"cache_read": 0.5,
"cache_write": null
},
"features": [
"tools",
"structured_output",
"streaming",
"caching"
],
"info": {
"status": "active",
"release_date": "2026-05-05",
"knowledge_cutoff": "2025-08-31",
"description": "Points to the latest Instant model currently used in ChatGPT.",
"docs": "https://developers.openai.com/api/docs/models/chat-latest",
"verified_at": "2026-10-11"
}
}Official sources
4