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OpenAI

GPT 5.3 Codex

OpenAI, United States187/191 correctLast updated Mar 7, 2026Website

GPT 5.3 Codex by OpenAI achieved an overall score of 97.0% on Appwrite Arena, ranking #1 of 10 benchmarked models. The benchmark tests how well AI models understand Appwrite - the open-source backend platform for authentication, databases, storage, functions, and more. This model answered 187 of 191 questions correctly across categories including Auth, Databases, Functions, Storage, and CLI. Compare GPT 5.3 Codex with other LLMs on the Appwrite Arena leaderboard.

Cost/1MOverallFoundationAuthDatabasesFunctionsStorageSitesMessagingRealtimeCLI
$1.75Input: $1.75/1M tokens
Output: $14.00/1M tokens		97%99%98.8%94.6%99.3%98.5%100%99.7%95.5%90.4%
Deterministic17/17 correct
AI-Judged93% average score