GPT-5.3-Codex being routed to GPT-5.2

What version of Codex CLI is running?

codex-cli 0.99.0-alpha.10

What subscription do you have?

ChatGPT Pro

Which model were you using?

gpt-5.3-codex

What platform is your computer?

Darwin 25.2.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

Ghostty

What issue are you seeing?

Both config.toml and TUI are set for gpt-5.3-codex, but the output and SSE captures show that the model name is actually gpt-5.2-2025-12-11.

What steps can reproduce the bug?

1. Set both config.toml and TUI to gpt-5.3-codex
2. Run RUST_LOG='codex_tui::chatwidget=info,codex_api::sse::responses=trace' codex
3. Send a prompt
4. log/codex-tui.log shows response.model is gpt-5.2-2025-12-11 from event response.created

What is the expected behavior?

to actually use gpt-5.3-codex

Additional information

No response