Models>GPT-5.3 Codex

GPT-5.3 Codex

Codex Quest: 400K Lines of Shame
GPT-5.3 Codex

Code-specialized model with 400K context.

All Reviews:No user reviewsDeveloper:OpenAIFamily:gpt-5.3

Popular user-defined tags for this model:

ReasoningTool UseStructuredImageFile+
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Specifications

Context Window400K tokens
Max Output128K tokens
Pricing (per 1M tokens)
Input: $1.75
Output: $14.00
Cache: $0.17
Modalities
text image file→ text
Capabilities
ReasoningTool UseStructured Output
ProviderOpenAI
Familygpt-5.3

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