GitHub Copilotgpt-codexGPT-5.3-Codexgpt-5.3-codexGitHub CopilotReleased Feb 24, 2026400,000 token context windowSubscription plan pricingReasoningTool callingInputtextimageOutputtext
OpenRoutergpt-codexGPT-5.3-Codexopenai/gpt-5.3-codexOpenRouterReleased Feb 24, 2026400,000 token context windowIn $1.75 · Out $14.00ReasoningTool callingStructured outputAttachmentsInputtextimagepdfOutputtext
Requestygpt-codexGPT-5.3-Codexopenai/gpt-5.3-codexRequestyReleased Feb 24, 2026400,000 token context windowIn $1.75 · Out $14.00ReasoningTool callingStructured outputAttachmentsInputtextimagepdfOutputtext