Modelpeers

DeepSeek API changelog

Every change to DeepSeek API that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 31, 2026.

All (6)Releases (1)Breaking changes (1)Prices/limits (3)Security (1)

September 2026

DeepSeek-V4-Pro character

V4-Pro and DeepSeek API

2 products from DeepSeek

Default change

DeepSeek keeps V4-Pro running after September 14

DeepSeek had said deepseek-v4-pro requests would move to V4.1-Flash from September 14. It now keeps serving V4-Pro after that date at the same prices: $1.32 input (cache miss) and $3.96 output per 1M tokens at peak.

Before

deepseek-v4-pro routed to V4.1-Flash from September 14

After

deepseek-v4-pro keeps serving DeepSeek-V4-Pro-0813

Who is affected:
Apps calling deepseek-v4-pro.
What to do:
Keep using deepseek-v4-pro if you rely on it.

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