Tested Yandex's Vibecraft: One Question Remains Unanswered

Sergey Ignatenko, founder of the AI platform VibePilot and a Yandex partner with an AI Studio Boost grant, tested Yandex Cloud's new VibeCraft service. He set a task to create a website for a car service center with online booking. The agent asked clarifying questions and took 52 minutes to complete the task, which Ignatenko found slow compared to his own platform's 13-15 minutes. The result looked good, used default Tailwind colors, and all functions worked, spending 530 neurocredits. The code was a real Next.js project, not a block constructor, but no images or SVGs were inserted. The main unresolved question was which LLM the agent uses: when asked directly, both the Code Assistant and the VibeCraft chat claimed to be Claude from Anthropic. Ignatenko then surveyed models in Yandex AI Studio, but none of the open-weight models admitted to being Claude, and the Alisa AI LLM was evasive about its identity. He also explored the code and found that VibeCraft uses the open-source agent framework OpenCode under the MIT license, AGENTS.md conventions, skills in SKILL.md format, and Yandex Cloud Document API for the database. Despite the timing and model questions, Ignatenko praised Yandex as a pillar of Russian IT and VibeCraft as a valuable step, while noting room for optimization in agent cycles and model selection.