GPT 5.4 not accessible via the /chat/completions

[nahom-d54]

Error: Error code: 400 - {'error': {'message': '{"error":{"message":"model \"gpt-5.4\" is not accessible via the /chat/completions endpoint","code":"unsupported_api_for_model"}}\n', 'type': 'error'}}

[caozhiyuan]

/v1/chat/completions uses an OpenAI-compatible protocol, which does not support the transmission of thought signatures and is outdated. Please use the Message API or Responses API from https://github.com/caozhiyuan/copilot-api?tab=readme-ov-file#example-usage. @nahom-d54 you can gpt-5.4 from Message API or Responses API

[jeiksegovia]

I just started to use https://github.com/caozhiyuan/copilot-api Its great 🤘

[theguy000]

I just started to use https://github.com/caozhiyuan/copilot-api Its great 🤘

there are so many new updates. wow. how can i digest so many new commits!