YandexGPT is Yandex's family of large language models. They answer questions, write and edit text, read documents and help with business correspondence.
The reason to pick YandexGPT is the Russian language. The models were trained mostly on Russian-language data, so they have a better feel for style, grammatical cases and business phrasing than translated equivalents — and they know local companies, regulations and everyday realities, because there is far more of that in their training data. On hard reasoning the global flagships are ahead, but this family costs noticeably less.
YandexGPT models are available in GPTunneL with an ordinary sign-up — no Yandex account and no Yandex Cloud access, with one balance and billing for the tokens you actually spend.