GPT-5.3 Chat

OpenAI chattool_usevision

API ID: openai/gpt-5.3-chat-20260303

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Input Price
$1.75
/1M tokens
Output Price
$14.00
/1M tokens
Cached Input
$0.17
Save 90%

About GPT-5.3 Chat

GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly...

💰
Price Ranking
#1164 lowest price among 1240 Chat models

Model Specifications

Context Length
128k
Max Output
16k
Release Date
2026-03-03
Capabilities
chat tool_use vision
Input Modalities
textimagefile
Output Modalities
text

Best For

  • Image analysis, document understanding, visual Q&A
  • Conversations, content writing, general assistance

💰 Real-World Cost Examples

Estimated monthly costs for common use cases

Personal AI Assistant
$4.99
/month
50 conversations/day, ~500 tokens each
Customer Service Bot
$152.25
/month
1000 tickets/day, ~800 tokens each
Calculate Your Custom Usage

OpenAI Model Lineup

Compare all models from OpenAI to find the best fit

Model Input Output Context Capabilities
GPT-5.3 Chat Current Free Free 128k chat tool_use vision
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k (older v0314) Free Free 33k chat
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🚀 Quick Start

Get started with GPT-5.3 Chat API

OpenAI Python SDK 
from openai import OpenAI
client = OpenAI()

response = client.chat.completions.create(
    model="openai/gpt-5.3-chat-20260303",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)

Resources

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