To reproduce: host a server that logs incoming requests (localhost is blocked), set it as your OpenAI base URL, and select Composer 2. This works for GPT and Claude models too. Composer 1.5 is the only model that blocks it.
Location: Nanjing, China (UTC+8)
Remote: Yes
Willing to relocate: Open to it
Technologies: Rust, TypeScript, Python, React, Next.js
Résumé/CV: https://fynn.so/resume.pdf
Email: career@fynn.so
21, writing code since 14. Graduating June 2026, Software Engineering.
I build with Rust and TypeScript, daily-driving Claude Code / OpenCode.
To reproduce: host a server that logs incoming requests (localhost is blocked), set it as your OpenAI base URL, and select Composer 2. This works for GPT and Claude models too. Composer 1.5 is the only model that blocks it.
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