YandexGPT Models by Yandex
Last refreshed 2026-05-19. Next refresh: weekly.
Details
Capabilities
About
YandexGPT is a suite of large language models crafted by Yandex, a notable Russian tech firm. These models adhere to the GPT architecture, harnessing extensive datasets of text and code, spanning books, articles, and freely accessible online content 134. The family comprises a range of models with diverse capabilities, the standout being YaLM 100B, which contains 100 billion parameters and has been trained on 1.7 TB of English and Russian data 3. YandexGPT models are embedded within various Yandex offerings such as the virtual assistant Alice and are accessible via APIs for enterprise deployment in proprietary solutions 125). The models undergo constant refinement, with successive updates enhancing response quality, reasoning faculties, and processing capacity 13. Yandex is committed to ethical AI progress, ensuring that its models engage with sensitive issues sagely and provide sourced information 12.
Decision facts
- Best fit
- JSON / Tool usecodingstructured outputs
- Capability starting point
- YandexGPT 5.1 Pro with 128k context
- Lowest tracked input
- Not tracked
- Closest related family
- Alice AI
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
Use when the workload needs 32k context, 8B parameters, and open source.
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| YandexGPT 5.1 Pro | Use when the workload needs 128k context. | 2025-08 | 128k context | Current |
| YandexGPT Pro 5 | Use when the workload needs 32k context. | 2025-02 | 32k context | Current |
| YandexGPT 5 Lite | Use when the workload needs 32k context, 8B parameters, and open source. | 2025-02 | 32k context8B parametersopen source | Current |
Release Timeline
3 release groupsSpecifications(5 models)
| Model | Released | Context | Parameters | JSON / Tool use |
|---|---|---|---|---|
| YandexGPT 5.1 Pro | 2025-08 | 128k | — | No |
| YandexGPT Pro 5 | 2025-02 | 32k | — | No |
| YandexGPT 5 Lite | 2025-02 | 32k | 8B | No |
