DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...
With CoreAI, you can start chatting with DeepSeek: DeepSeek V4.1 Flash 1017 instantly — no separate subscription needed. CoreAI lets you chat with DeepSeek: DeepSeek V4.1 Flash 1017 alongside 300+ other AI models from DeepSeek and other providers like OpenAI, Anthropic, Google, Meta, and more.
DeepSeek: DeepSeek V4.1 Flash 1017 holds the #44 spot for context size out of 452 chat models in the CoreAI catalog — 1.0M tokens, roughly 786,432 words or 1,573 pages of text in a single conversation. On price, it is the #100 cheapest of 154 budget-tier models by input cost. Released 2026-10-17, it is one of the 1 newest additions to the catalog. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through DeepSeek: DeepSeek V4.1 Flash 1017 and DeepSeek: DeepSeek V4.1 Flash side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00045 on DeepSeek: DeepSeek V4.1 Flash 1017's raw per-token rates; a heavy session with a 50K-token document costs about $0.010. On CoreAI you don't juggle these numbers — one subscription covers DeepSeek: DeepSeek V4.1 Flash 1017 and 300+ other models under a plan usage limit, with no API keys. See plans.
DeepSeek: DeepSeek V4.1 Flash 1017 handles 1.0M tokens of context — roughly 786,432 words, or about 1,573 pages of text in one conversation.
DeepSeek: DeepSeek V4.1 Flash 1017's underlying rates are $0.15 per 1M input tokens and $0.6 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — DeepSeek: DeepSeek V4.1 Flash 1017 accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. DeepSeek: DeepSeek V4.1 Flash 1017 can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick DeepSeek: DeepSeek V4.1 Flash 1017 in the model selector, and chat — no API key, no per-token billing. One subscription covers DeepSeek: DeepSeek V4.1 Flash 1017 and 300+ other models.
The closest alternatives on CoreAI are DeepSeek: DeepSeek V4.1 Flash, Xiaomi: MiMo-V2.6-Flash, DeepSeek: DeepSeek V4 Flash Latest — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
Chat with DeepSeek: DeepSeek V4.1 Flash 1017 and 300+ other AI models — all in one app.