CodeMode LLM pinned to gpt-4.1

[jer-k]

https://github.com/cloudflare/agents/blob/main/packages/codemode/src/ai.ts#L70

It appears CodeMode is pinned to gpt-4.1. I was surprised to find this wasn't configurable. It would be beneficial to allow the codemode function to take in a model, same as streamText for example.

import { codemode } from "agents/codemode/ai";

const {system, tools} = codemode({
  model: openai("gpt-5"),  //<---- new functionality
  system: "You are a helpful assistant",
  tools: {
    // tool definitions 
  },
  // ...config
})

const stream = streamText({
  model: openai("gpt-5"),
  system,
  tools,
  messages: [
    { role: "user", content: "Write a function that adds two numbers" }
  ]
})