GPT-4.5 Preview

Deprecated large model.

OpenAIgpt-4.5-previewReport incorrect data

Specs

Context: 128K
Max output: 16.4K
Input price: $75/ 1M tokens
Output price: $150/ 1M tokens
Released: —

Context

Context window: 128K
Max input: —
Max output: 16.4K

Pricing · USD / 1M tokens

Input: $75
Output: $150
Cache read: $37.5
Cache write: —

Modalities

Input: TextImage
Output: Text

API

API types: chatresponsesbatch

Reasoning

Not published

Info

Status: Retired
Released: —
Knowledge cutoff: 2023-10-01

Features

Confirmed: toolsstructured_outputstreamingcachingbatch

How to call

openaimodel = gpt-4.5-preview

chat

POSThttps://api.openai.com/v1/chat/completions

responses

POSThttps://api.openai.com/v1/responses

batch

POSThttps://api.openai.com/v1/batches

JSON

gpt-4.5-preview.json

{
  "id": "gpt-4.5-preview",
  "object": "model",
  "created": null,
  "owned_by": "openai",
  "name": "GPT-4.5 Preview",
  "api": {
    "types": [
      "chat",
      "responses",
      "batch"
    ]
  },
  "limits": {
    "context": 128000,
    "input": null,
    "output": 16384
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": {
    "currency": "USD",
    "unit": "1M_tokens",
    "input": 75,
    "output": 150,
    "cache_read": 37.5,
    "cache_write": null
  },
  "features": [
    "tools",
    "structured_output",
    "streaming",
    "caching",
    "batch"
  ],
  "info": {
    "status": "retired",
    "release_date": null,
    "knowledge_cutoff": "2023-10-01",
    "description": "Deprecated large model.",
    "docs": "https://developers.openai.com/api/docs/models/gpt-4.5-preview",
    "verified_at": "2026-10-11"
  }
}

Official sources

GPT-4.5 Preview Model | OpenAI APIdevelopers.openai.com2026-10-11 Deprecations | OpenAI APIdevelopers.openai.com2026-10-11