Yenisei
Open chat

The complete toolkit
for working with AI

Chat, a desktop agent, a coding assistant and an API. One account and one balance for everything. Billing in rubles.

Start for free
The power isn't in the hardware. It's in the flow.
Yenisei demo
Describe what needs to be done. "/" for commands, "@" for files and sessions
Yenisei 100

Chat, files, schedules and code.
In the browser, on the desktop, in the terminal.

AI chat

Questions, texts, file analysis and images: in the browser, on the phone and in the app.

Write a message
Yenisei 100

Working with your files

The agent reads documents, spreadsheets and screenshots in the working folder and shows the result next to the conversation.

Scheduled tasks

The agent runs the task on the set days and hours and puts the result in the folder.

Coding assistant in the terminal

Yenisei CLI reads the project files, edits the right ones, runs the tests and saves the changes in git.

❯

What's new

NewsSeptember 17

Yenisei Free: a new model in every Yenisei product

Learn more →
ArticleSeptember 3

Claude Fable 5.1: what Anthropic's new model can do and what to use in Yenisei

Learn more →
ArticleSeptember 3

OpenAI models in Yenisei: open GPT-OSS and migrating from the OpenAI API

Learn more →
NewsSeptember 3

September's new models in the catalog: Qwen3.8 2.4T, GLM 5.3, Inkling and more

Learn more →

For developers

The CLI with one command

macOS and Linux. For Windows, a file on the download page.

$curl -fsSL https://yenisei.ru/app/cli/install.sh | sh

An OpenAI-compatible API

If your code already works with OpenAI, change its base URL to this one and use a key from the console.

https://api.yenisei.ru/v1

Start for free

All you need to sign in is an email. The free plan is enough to try it out.

Open chatOpen console