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GPT-5.3 Codex

gpt-5.3-codex

Chat & Textby OpenAI

The most capable agentic coding model to date.

chatstreamingtools

Details

Accepts
text
Context window
200K tokens

Pricing

Input
219 cr / 1M tokens
Output
1750 cr / 1M tokens
Cached input
21.88 cr / 1M tokens

Prices in credits (1 credit = $0.01).

Data schema

approximate

Input

FieldTypeDescription
promptrequiredstringThe text prompt.

Output

FieldTypeDescription
textstringGenerated text (choices[0].message.content).