[JS] [compat-oai] Error "Model 'openai/gpt-4.1' does not support multiple messages"

[Tyg-g]

Describe the bug

Error message Model 'openai/gpt-4.1' does not support multiple messages. The model should support multiple messages. It worked with the package genkitx-openai.

To Reproduce

a .prompt file with multiple {{ role "user" }} lines.

Expected behavior

Normal response from the LLM.

Screenshots

NA.

Runtime (please complete the following information):

• OS: Linux | Kubuntu
• Version: 24.10

** Node version

v20.16.0

Additional context