YandexGPT 5.1 Pro
YandexGPT 5.1 Pro is a released long context model with 128k context; evaluate it while provider pricing coverage matures.
Use it for
- Teams evaluating long context
- Workloads that can use a 128k context window
Do not use it for
- Cost-sensitive launches that need sourced token pricing
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
- Family
- YandexGPT
- Released
- 2025-08-28
- Context
- 128k
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
No tracked provider token pricing is available yet.
About
Flagship YandexGPT model with 128k context window. 2.5x faster inference than YandexGPT 4 Pro. Cost reduced to 40 kopecks per 1000 tokens. Outperforms previous generation in 58% of cases and OpenAI GPT-4.1 in 56% of cases.
YandexGPT 5.1 Pro is a proprietary model in the YandexGPT family. The structured metadata tracks a 128k-token context window. No headline benchmark score is tracked for YandexGPT 5.1 Pro yet.
Top use-case fit
Long context
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
No model capability flags are currently sourced.
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of YandexGPT 5.1 Pro?
YandexGPT 5.1 Pro has a context window of 128k tokens.
When was YandexGPT 5.1 Pro released?
YandexGPT 5.1 Pro was released on 2025-08-28.