DeepSeek V4.1 Flash 1017

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Data updated on October 22, 2026· 222 models

DeepSeekFlash 1017

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.

Reasoning estimated
Speed estimated
Input
Output
Context
1 M tokens
Max output
393 K
Input, $ per 1M tokens
$0.300
Output, $ per 1M tokens
$1.20
Cache read, $ per 1M
$0.006
Batch (input / output)
—
Tool calling
Yes
Released
10/17/2026
Knowledge cutoff
2025-05
API id
deepseek/deepseek-v4.1-flash-1017

Summary from the data

DeepSeek V4.1 Flash 1017 is a DeepSeek model available by API since 10/17/2026. It costs $0.300 per million input tokens and $1.20 per million output tokens, accepts 1 M tokens of context and generates up to 393 K tokens per response. Input: text, image; output: text. It has a reasoning mode. It supports tool calling. With 10,000 requests a month of 1,500 input and 400 output tokens it would cost about $9.30 a month.

Compare DeepSeek V4.1 Flash 1017 with…

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What would your product cost?

Estimate the monthly cost with your app's real volume. List prices, no cache or batch discounts.

DeepSeek V4.1 Flash 1017
$9.30/mo

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Frequently asked questions

How much does DeepSeek V4.1 Flash 1017 cost per million tokens?

DeepSeek V4.1 Flash 1017 costs $0.300 per million input tokens and $1.20 per million output tokens (USD, list price). Cache read: $0.006. Batch tier: not published.

What context window does DeepSeek V4.1 Flash 1017 have?

DeepSeek V4.1 Flash 1017 accepts 1 M tokens of context per request and generates up to 393 K tokens per response.

Does DeepSeek V4.1 Flash 1017 accept images, audio or files?

Input: text, image. Output: text.

Does DeepSeek V4.1 Flash 1017 have a reasoning mode and tool calling?

It has a reasoning mode. It supports tool calling.

When was DeepSeek V4.1 Flash 1017 released and what is its knowledge cutoff?

DeepSeek V4.1 Flash 1017 has been available by API since 10/17/2026. Knowledge cutoff: 2025-05.

What would an app built on DeepSeek V4.1 Flash 1017 cost?

With 10,000 requests a month of 1,500 input and 400 output tokens, DeepSeek V4.1 Flash 1017 would cost about $9.30 a month at list price, without cache or batch discounts.

What is the API id of DeepSeek V4.1 Flash 1017?

The id is deepseek/deepseek-v4.1-flash-1017. It is the name passed in the model parameter of the API (or on OpenRouter).

Where do the prices come from and how often are they updated?

From the public catalogs of OpenRouter, models.dev and LiteLLM, which publish each provider's list prices. They sync once a day and the last update date is shown above the comparison.

What does price per million tokens mean?

It is what the provider charges per million tokens you send (input) or the model generates (output). A token is roughly 4 characters. Output almost always costs more than input.

Sources: OpenRouter, models.dev and LiteLLM. Prices in USD per million tokens, list price, no volume discounts. Prompt tokens are an estimate; each provider's tokenizer may differ.