DeepSeek routes V4-Pro API traffic to V4.1-Flash
DeepSeek Routes All V4-Pro API Traffic to V4.1-Flash at Flash Rates
This is a pricing change for DeepSeek's API that will affect developers using the V4-Pro model, as it will now be charged at the lower Flash rate until a new version is released.
DeepSeek announced on September 14 that all V4-Pro API requests will be routed to the V4.
1-Flash model and charged at Flash rates until the V4.1-Pro version is released.
This is an operational switch to fix the Pro model's ID.
DeepSeek Routes All V4-Pro API Traffic to V4.1-Flash at Flash Rates
From 04:00 UTC on Sept. 14, DeepSeek serves every deepseek-v4-pro request with V4.1-Flash at Flash pricing until V4.1-Pro ships — an operational cutover for pinned Pro model IDs.
This report is categorized under AITOP's "Models" desk, focusing on China's AI industry and domestic foundation model ecosystem. Within our cross-regional analytical framework, it directly maps to US-China foundation model benchmarks and commercialization comparison and AI developer toolchains, coding agents, and engineering workflows. Key entities and technical topics under continuous tracking include DeepSeek, V4-Pro, API, pricing.
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