需要一个能够登录codex的账号，账号登录后修改config.toml，auth.json不用动。 
config.toml添加这些 
这几行放到顶部 
 model = "gpt-5.5"
 model_provider = "custom"
 model_reasoning_effort = "xhigh"
 service_tier = "fast"
 ​
 [model_providers.custom]
 name = "OpenAI"
 base_url = "第三方api地址"
 wire_api = "responses"
 requires_openai_auth = true
 experimental_bearer_token = "用户key"

features补充成 
 [features]
 js_repl = false
 fast_mode = true

...