Beyond English.
WHAT TO KNOW
Models are generally strongest in English, because most training data is English.
Performance in other languages varies with how much material existed.
WHAT THIS MEANS
Output in less-represented languages may be less fluent and less accurate.
FOR NIGERIAN LANGUAGES
Coverage varies considerably. Widely spoken languages have better support than others.
Test before relying on it.
A PRACTICAL TECHNIQUE
Prompt in English, request output in the target language.
That frequently produces better results than prompting in the target language.
FOR TRANSLATION
Specify the audience and register.
"Translate for a general audience, informal register" produces different output from a literal translation.
WHAT TO ALWAYS VERIFY
Anything published, by a native speaker Anything where a mistranslation causes harm
FOR MIXED-LANGUAGE CONTEXTS
Models handle code-switching inconsistently.
State explicitly what you want.