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DeepSeek · First-party API · LLM

deepseek-flash DeepSeek-V4.1-Flash-1017

Capability changeCapability change announced Oct 17, 2026

Capability change announced Oct 17, 2026 for deepseek-flash DeepSeek-V4.1-Flash-1017 on DeepSeek. Source: api-docs.deepseek.com · Last checked Oct 23, 2026

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Notice

Capability change

Capability change announced Oct 17, 2026

DeepSeek documents a capability change: “Date: 2026-10-17 ​ DeepSeek-V4.1-Flash-1017 Update ​ DeepSeek V4.1 Flash has been upgraded to DeepSeek-V4.1-Flash-1017.”

Hosting route
First-party API
Affected scope
Not stated in the notice
Announced
Oct 17, 2026
First seen by ModelClock
Oct 23, 2026

What the provider published

api-docs.deepseek.com ↗

Date: 2026-10-17 ​

DeepSeek-V4.1-Flash-1017 Update ​

DeepSeek V4.1 Flash has been upgraded to DeepSeek-V4.1-Flash-1017. The official web and APP models have also been updated to the new version. The API calling method and pricing remain unchanged — simply use deepseek-flash to access the latest model.

Read from the provider's text; the quote is the provider's exact lines.

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