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12primary source pages30verified eventsSep 1, 2026 – Sep 10, 2026 (UTC)
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UTC 2026-09-10 build snapshot, not live metrics. Date states can update; source verification timestamps do not.

Home/Events/DeepSeek
DeepSeek

Previous-generation models retired: deepseek-v4-flash, deepseek-v4-flash-vision-exp routed to V4.1 Flash

The previous-generation V4 Flash and V4 Flash Vision Exp models have been retired; their model names are temporarily routed to V4.1 Flash.

HighApi ShutdownVerifiedOfficial Announcement
No deadline statedNot announced

Verification is under 30 days old, not a live check; date passage does not confirm shutdown.

What changed

Impact summary

The previous-generation V4 Flash and V4 Flash Vision Exp models have been retired; their model names are temporarily routed to V4.1 Flash.

BeforeDeepSeek V4 Flash and V4 Flash Vision Exp
After / replacementdeepseek-flash (V4.1 Flash)

Affected models and systems

deepseek-v4-flashdeepseek-v4-flash-vision-exp

Migration action

Recommended next step: Route traffic from deepseek-v4-flash and deepseek-v4-flash-vision-exp to deepseek-flash; test multimodal inputs.

Source and interpretation

API platform & regional scope

DeepSeek direct API · Direct API; country eligibility not established by the reviewed log.

Not third-party hosting.

Bounded manual review of the registered official sources; not a complete archive.

Unconfirmed regions are not assumed to be global. Automatic monitoring is OFF. Source checks

Official evidence locators

Effective immediately on announcement date.

Affected endpoints: Not separately specified; check model / capability scope

Action / deadline: Review required · No stated deadline

This record is classified as official announcement. The facts above were normalized from the provider's public developer documentation. API Change Watch does not treat an unreviewed page diff as a verified announcement.

Record revision history

  • · addition · 0b08ce6ea2a2

Full before/after values are retained in the JSON export. Recording time is not announcement or verification time.

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