Author

Abhishek Singhania

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Preprint Aug 2026

When the API Speaks the Wrong Language: Revisiting Post-Training for Multilingual Tool Use

It is found that, in this benchmark, supervised fine-tuning (SFT) provides a strong baseline, substantially improving argument language consistency and end-to-end function call accuracy and, under consistent model selection, SFT achieves performance comparable to, and sometimes exceeding more complex reinforcement lear...

Siddharth Chauhan, Thomas Butler, Abhishek Singhania et al. · 0 citations