Expired50% confidenceEventExact time
GPT-5.5 noted during testing that SwiftUI is not well-suited for a true CLI, but still built a runnable application and successfully output the current time in ASCII art style.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/6/2026
First Seen
Valid until: 10/4/2026(expired)
Sources
Related Claims
UnverifiedGPT-5.5 is particularly strong in TypeScript and Swift programming languages, but performs poorly in Ruby.69% similarUnverifiedThe GPT-5.6 LUNA version is designed for developers, with programming test scores surpassing Opus 4.8.68% similarUnverifiedDeveloper Henry-Jessie used GPT-5.2 together with the Codex CLI tool to achieve a score surpassing Claude Opus 4.5 in Anthropic's Performance Take-Home challenge.68% similarUnverifiedGPT-5.6 rebuilt an entire React Native mobile application from scratch in both AppKit/Swift and SwiftUI, with both native versions being fully functional and each taking only 2 to 4 hours.66% similarUnverifiedThe CLI tool supports extending model backends through a plugin mechanism, which is the technical foundation for implementing the approach of calling GPT-5.5.65% similar
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