First paragraph (55 words)

The DeepSeek API now supports OpenAI and Anthropic SDK integration, enabling developers to use existing tools with its models. By adjusting configuration parameters like base_url and api_key, users can access models such as deepseek-v4-flash and deepseek-v4-pro through familiar interfaces. This compatibility lowers adoption barriers for teams already invested in OpenAI/Anthropic ecosystems.

Second paragraph (55 words)

The API introduces thinking mode via parameters like reasoning_effort and stream, allowing developers to toggle between non-stream and stream responses. deepseek-chat and deepseek-reasoner models, set for deprecation by 2026/07/24, map to flash model variants. Users are encouraged to migrate to newer models for long-term support.

Third paragraph (55 words)

Example code snippets demonstrate API usage, including curl and Python requests with headers for deepseek-v4-pro. The Authorization header requires a Bearer token, emphasizing security protocols. Deprecation timelines and model equivalencies provide a clear roadmap for transitioning workflows.

Fourth paragraph (55 words)

This integration reflects DeepSeek's effort to align with industry standards while phasing out older models. Developers leveraging OpenAI/Anthropic SDKs can now experiment with DeepSeek's architecture without overhauling infrastructure. The 2026 deprecation deadline underscores the need for proactive migration planning.