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GPT-5.3 Chat

Chat

OpenAI

openai/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...

4

credits / gen

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File Support 128K Context Vision (OR)

About this model

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...

Technical Specifications

Provider

OpenAI

Type

Chat

Context Window

128,000 tokens

Pricing

4 credits

Capabilities

File Support

Can read PDF, DOCX, XLSX & more

128K Context

Large context window for long documents

Vision (OR)

OpenRouter reports vision support