OpenRouter has added a new model called DeepSeek V4.1 Flash 1017. It is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, provided under the `deepseek-flash` API name. The model uses a sparse mixture‑of‑experts architecture and can handle up to 1,048,576 tokens of context in a single request.
Why it matters
Developers can now build longer‑form AI applications, such as document analysis or extended chat sessions, without breaking the text into pieces.