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GPT-5.3 Codex

OpenAIOpenRouter ↗

Coding-optimized GPT model for repository edits, reviews, and agentic software work

Benchmarks

BenchmarkCategoryScoreVariantProvenanceSourceObserved
Design Arena — 3dpreference1068mirroropenrouterJul 23, 2026
Design Arena — androidnativepreference1084mirroropenrouterJul 23, 2026
Design Arena — asciiartpreference1192mirroropenrouterJul 23, 2026
Design Arena — codecategoriespreference1177mirroropenrouterJul 24, 2026
Design Arena — datavizpreference1196mirroropenrouterJul 24, 2026
Design Arena — fullstackpreference1040mirroropenrouterJul 23, 2026
Design Arena — gamedevpreference1219mirroropenrouterJul 23, 2026
Design Arena — godotgamedevpreference1124mirroropenrouterJul 23, 2026
Design Arena — mobileappspreference1128mirroropenrouterJul 24, 2026
Design Arena — svgpreference1178mirroropenrouterJul 24, 2026
Design Arena — uicomponentpreference1178mirroropenrouterJul 23, 2026
Design Arena — webappspreference1103mirroropenrouterJul 23, 2026
Design Arena — websitepreference1190mirroropenrouterJul 23, 2026

Includes index data from Artificial Analysis.

Providers

Live operational stats per hosting endpoint, via OpenRouter.

ProviderQuantContext$/1M in · outUptime 24hLatencyThroughput
Azure400K$1.75 · $14100.00%
OpenAI400K$1.75 · $1499.94%
OpenAI400K$3.5 · $2899.94%