Codex++
A non-invasive enhancement launcher for the Codex desktop app (the BigPizzaV3 edition). It leaves official install files untouched, injects enhancements via an external launcher, and ships a management tool that writes third-party providers into ~/.codex/config.toml — exactly what we need for ByteSeek.
This guide covers BigPizzaV3/CodexPlusPlus (launcher + management tool). A same-named project that patches app.asar has a completely different architecture — its configuration does not apply here.
Install
The only official release channel is the GitHub Releases page; download the latest installer per platform:
After installation you get two entries: Codex++ (launch instead of the original Codex icon) and the Codex++ management tool (providers and enhancements).
Prerequisites
- Official Codex desktop app and Codex++ installed
- An OpenAI-format group key created on the API Keys page
Add ByteSeek as a provider
- Open the management tool → provider settings → add provider.
- Fill in:
- Mode: pure API
- Name:
ByteSeek - Base URL:
https://tokens.byteseek.ai/v1 - API Key: your
sk-key - Upstream protocol: prefer Responses; fall back to Chat Completions on older clients
- For model names use exact IDs from the model plaza, e.g.
gpt-5.6-sol. - Save and launch from the Codex++ icon. If Codex is already running, quit it first.
After saving, set ByteSeek as the active provider in the list — desktop Codex then routes through ByteSeek.
Verify
Launch via Codex++ and start a conversation; a normal reply means success. The request appears on the usage page.