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OpenAI: GPT-5.3-Codex
GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...
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Rank
391K
Context Window
$1.75
Min Input /1M
$14.00
Min Output /1M
Model Info
| Model ID | openai-gpt-5-3-codex |
| Modality | text+image+file->text |
| Context Window | 391K tokens |
| Platforms | OR |
Usage & Rankings
| Rank | Unranked |
| Weekly Usage | — |
Input
$1.750
/ 1M tokens
Output
$14.000
/ 1M tokens
Round Trip
$15.75
/ 1M tokens
Value Rating
🔴
🔴 Premium — best for quality-critical tasks
About OpenAI: GPT-5.3-Codex
OpenAI: GPT-5.3-Codex is a large language model with a 391K token context window.
The best available input price is $1.750/1M tokens and output price is $14.000/1M tokens, with a round-trip cost of $15.75/1M tokens.