OpenAI

GPT 5.3 Codex

Name: OpenAI GPT 5.3 Codex
Brand: OpenAI
Price: 1.75 USD

openai/gpt-5.3-codex

400K context·128K max output·text+image+file->text

Input

$1.75

per 1M tokens

Output

$14.00

per 1M tokens

Cache Read

not available

Cache Write

not available

Quality Benchmarks

FrontierValue: 59.9

Coding

Code generation, completion, debugging

64.3

Math

Competition math, calculus, olympiad

87.8

Reasoning

Logic, spatial, puzzle solving

75.1

Language

Summarization, paraphrase, writing

70.4

Overall

74.4

Source: LiveBench (livebench.ai) / Scores 0-100

Capabilities

VisionTool UseReasoningPrompt Caching

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