DeepSeek-V4-Pro changelog

Perplexity Agent API adds DeepSeek V4 Pro at $1.32 per million input tokens

The model docs list perplexity/deepseek-v4-pro-0813 at $1.32 per million input tokens, $0.044 per cached input token million, and $3.96 per million output tokens. It is also available through the Orchestrator API.

DHS orders US federal civilian agencies to remove DeepSeek products

A Department of Homeland Security order published in the Federal Register on October 20, 2026 tells federal civilian agencies to stop buying DeepSeek products, including third-party products built with DeepSeek technology, and remove them from their systems. Agencies can request exceptions within 60 days.

Who is affected:

US federal civilian agencies and vendors that sell them products built on DeepSeek models.

Action needed:

If you sell to US federal civilian agencies, check whether your product uses DeepSeek models.

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.

Who is affected:

Apps calling deepseek-v4-pro.

What to do:

Keep using deepseek-v4-pro if you rely on it.

DeepSeek introduces peak and off-peak API pricing

DeepSeek updated API pricing with peak and off-peak rates, with off-peak 50% lower than peak, effective 16:00 UTC on August 16, 2026.

Who is affected:

DeepSeek API users, especially those running heavy workloads during peak hours.

What to do:

Schedule flexible batch workloads in off-peak hours.

DeepSeek-V4-Pro generally available

DeepSeek launched V4-Pro GA with agent upgrades, reasoning effort levels (low, high, max) for V4-Pro and V4-Flash, and native OpenAI Responses API support.

DeepSeek V4 preview released with open weights

DeepSeek released DeepSeek-V4-Pro (1.6T total, 49B active parameters) and DeepSeek-V4-Flash (284B total, 13B active) as open weights and on its API, with a 1M context window as the default.