Yandex / yandex/yandexgpt-5.1-pro
YandexGPT 5.1 Pro - access through LLMTR
YandexGPT 5.1 Pro is release 5.1 of the YandexGPT Pro family, with a 32,768-token context window. It is aimed at business text generation, document analysis and dialogue. It supports tool/function calling and JSON output. Input and output tokens bill at the same rate. It accepts text only.
Technical specifications
| Canonical ID | yandex/yandexgpt-5.1-pro |
|---|---|
| Provider | Yandex |
| Context window | 32,768 tokens |
| Operations | CHAT_COMPLETIONS |
| Modalities | text |
Pricing
An 8% platform margin applies to credit top-ups; model usage prices are not separately marked up.
| Operation | Metric | Unit | Price |
|---|---|---|---|
| CHAT_COMPLETIONS | INPUT_TEXT | PER_1M_TOKENS | $6.557376 |
| CHAT_COMPLETIONS | OUTPUT_TEXT | PER_1M_TOKENS | $6.557376 |
Example usage
With existing OpenAI SDK flows, change only the base URL and model identifier.
curl https://llmtr.com/v1/chat/completions -H "Authorization: Bearer llmtr-your_key" -H "Content-Type: application/json" -d '{"model":"yandex/yandexgpt-5.1-pro","messages":[{"role":"user","content":"Hello"}]}'Guides about this model
- YandexGPT 5.1 Pro API: OpenAI SDK usage and pricing - On LLMTR, yandex/yandexgpt-5.1-pro is called with the OpenAI SDK at https://llmtr.com/v1/chat/completions. The model offers a 32,768-token context, and input and output both bill at $6.557376 per 1M tokens. It takes and returns text only; tool calling, JSON output and streaming are supported.
- Yandex models compared: Alice AI LLM, Flash, YandexGPT Pro and Lite - On LLMTR the five Yandex models are called through /v1/chat/completions with the same API key. Context ranges from 32,768 to 131,072 tokens; tool calling, JSON output and streaming are available on all five, and the cache discount only on Alice AI LLM Flash. A request with 10,000 input and 1,000 output tokens costs between $0.009836 and $0.108197 depending on the model.
- YandexGPT 5.1 Pro or 5 Pro? Price difference and switching - On LLMTR both models are called through /v1/chat/completions with the same API key. Both offer a 32,768-token context, tool calling, JSON output and streaming. YandexGPT 5.1 Pro is the newer release of the YandexGPT Pro family; at $6.557376 per 1M tokens it costs one third less than 5 Pro at $9.836064.
- YandexGPT JSON output: extracting structured data from text with 5.1 Pro - On LLMTR, yandex/yandexgpt-5.1-pro returns a JSON object through /v1/chat/completions with response_format {"type": "json_object"}. State in the prompt that the answer must be JSON and list the keys, then validate the answer with json.loads and your own key and type checks. 1,000 documents of 2,000 input and 300 output tokens each cost $15.081965.
Related models
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- Alice AI LLM Flash yandex/alice-ai-llm-flash
- YandexGPT 5 Pro yandex/yandexgpt-5-pro
- YandexGPT 5 Lite yandex/yandexgpt-5-lite
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