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GPT-5.3-Codex

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GPT-5.3-Codex

gpt-5.3-codex

Developer

Status

Released

Details

Context: 400,000 tokens
Max output: 128,000 tokens
Knowledge cutoff: 2025-08-31
Inputs: Text, Image
Outputs: Text
Price: $1.75 in / $14 out
Tool use: Yes

Links

GPT-5.3-Codex is a large language model by OpenAI.