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Yenisei
Yenisei Max
The flagship Yenisei model for complex tasks and code
Text
Images
Video
Reasoning
Tools
- Type
- Chat
- Context
- 1M tokens
- Russian
- high
- Input price
- 40 ₽ / 1M tokens
- Output price
- 80 ₽ / 1M tokens
- Release date
- August 2026
chat/completions
import OpenAI from "openai"const client = new OpenAI({ baseURL: "https://api.yenisei.ru/v1", apiKey: process.env.YENISEI_API_KEY,})const stream = await client.chat.completions.create({ model: "yenisei-max", messages: [{ role: "user", content: "Hi!" }], stream: true,})for await (const chunk of stream) { process.stdout.write(chunk.choices[0]?.delta?.content ?? "")}About the model
Yenisei Max is the platform's flagship model, tuned for the Russian language and real work. It handles complex multi-step tasks with confidence, writes and explains code, understands images and video, and holds up to a million tokens in a single request: an entire specification or a whole codebase. It can call tools and is well suited to agents. Billing in rubles.
Strengths
- The best answer quality in Russian across the Yenisei lineup
- Strong coding skills
- Text, images and video as input
- Very large context, up to 1M tokens
- Tool calling (function-calling)
- Billing in rubles
Where to use it
- Complex analysis and planning
- Agent scenarios with tool calling
- Writing, reviewing and explaining code
- Analyzing documents, images and video
- Russian-language assistants for complex tasks