Future-Proof Your Workflow by Migrating to DeepSeek-V4 API Endpoints
Switch model parameters now to avoid the July 2026 legacy shutdown.
Proactively update your API model parameters to `deepseek-v4-pro` to ensure you are using the latest architecture rather than relying on legacy redirects.
The Scenario
You are an AI developer or power user who needs to ensure your applications stay ahead of the curve by using the most recent model versions.
Before & after
Developers might continue using legacy model names (deepseek-chat) for months, missing out on the superior V4 architecture, leading to sub-optimal results for weeks.
Update your API calls to `deepseek-v4-pro` to access GPT-5 level reasoning immediately, taking only 2 minutes to change the config.
The Prompt
// API Configuration Update: model: "deepseek-v4-pro", base_url: "https://api.deepseek.com" [ADD_YOUR_EXISTING_PROMPT_HERE]
While legacy names currently point to V4-Flash, the new V4-Pro offers significantly higher reasoning capabilities. The legacy names will be discontinued on July 24, 2026.
Source
Change Log | DeepSeek API Docs"To access the new models... the model parameter should be set to deepseek-v4-pro or deepseek-v4-flash."