Update README.md

[jpbalarini]

Code was not working after copying/pasting it from the documentation. There was a wrong colon in README that I fix in this PR

[jpbalarini]

@ms-jpq

[ms-jpq]

hi @jpbalarini, can you please help me understand what did not work for you?

:'gpt-4.1' and 'gpt-4.1' are supposed to be isomorphic parameters, so I will fix whatever is not working here 🙂.

---

I was not able to reproduce an error with the snippet copied from the README, perhaps you may be able to paste in your code in a comment? that would be super helpful

#!/usr/bin/env -S -- ruby
# frozen_string_literal: true
# typed: strict

require 'bundler/setup'

require 'openai'

openai = OpenAI::Client.new

stream = openai.chat.completions.stream_raw(
  messages: [{ role: 'user', content: 'Say this is a test' }],
  model: :'gpt-4.1'
)

stream.each do
  pp _1
end

# it hits this line and I was able to go into IRB console
binding.irb