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Model details

OpenAI: GPT 5.3 Codex (Fast)

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Kilo Gatewayopenai/gpt-5.3-codex-fastgpt-codex

Quick Info

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Provider
Kilo Gateway
Model key
openai/gpt-5.3-codex-fast
Release date
Feb 5, 2026
Last updated
Feb 5, 2026
Knowledge cutoff
2025-08-31
Input modalities
Output modalities
Capabilities

Cost

Input token cost
$3.50
Output token cost
$28.00

Limits

Input tokens
272,000 tokens
Output tokens
128,000 tokens
Context window
400,000 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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