DeepSeek V4.1 Flash 1017: a fresh snapshot is live
A fresh version of the fast DeepSeek model has arrived on NeuralSpace — DeepSeek V4.1 Flash 1017. It is an October 17, 2026 snapshot of DeepSeek V4.1 Flash: the same fast and affordable model, in its most recent revision. It is already available in the chat, the Code section and the public API. The model page is at /chat/deepseek-v4.1-flash-1017.
What DeepSeek V4.1 Flash 1017 can do
- Fast answers at a low cost. Flash-line models answer almost instantly and cost less than the senior models — a good fit for large volumes of everyday tasks.
- Tools. The model can call tools: search the web, work with generations and perform other actions right from the dialog.
- Web search. In the chat it is one checkbox away — you can ask the model to look up current information.
- Coding. In the Code section the model works as an agent: it creates a project, writes and edits files and runs long iterations.
How 1017 differs from regular V4.1 Flash
1017 is the snapshot date: October 17, 2026. Both versions live on the site side by side: the classic DeepSeek V4.1 Flash and this fresh snapshot. If you want the very latest revision of the fast DeepSeek — pick 1017.
Pricing
You pay for the tokens actually used, charged after the answer. At the time of writing the catalog lists $0.15 per 1M input tokens and $0.60 per 1M output tokens; the rate follows the model catalog and may change. The minimum balance threshold is from 3 tokens, just like for the whole Flash line. Current prices are on the API page.
How to try it
- Open the chat and pick DeepSeek V4.1 Flash 1017 from the model list — the model page is also available at /chat/deepseek-v4.1-flash-1017.
- Ask as usual: the model streams its answer; tick «Web search» if you want it to look things up.
- For bigger projects open the Code section, where the model works as an agent and edits files step by step.
- For your own applications use the public API with a key: the model list and prices are on the API page.
When to choose Flash 1017
Flash 1017 is an everyday working model: fast answers, text and document analysis, day-to-day coding, high-volume repetitive tasks. When a task calls for maximum depth, the senior models are there — for example DeepSeek V4 Pro or Claude Sonnet 5.5.
FAQ
What does «1017» mean? It is the snapshot date — October 17, 2026. The snapshot pins a specific, recent revision of DeepSeek V4.1 Flash.
How is it different from DeepSeek V4.1 Flash? It is the most recent revision of the same fast model. Both versions are available on the site — use either.
Where is it available? In the chat, the Code section, and through the public API with a key and MCP — see the model list and prices on the API page.
Does it have web search? Yes: in the chat, tick the «Web search» checkbox.
How much does it cost? You pay for the tokens actually used, charged after the answer; the minimum balance threshold is from 3 tokens.