Is deepseek-v4.1-flash a standalone native model?
On this platform, it is a compatible invocation ID for the DeepSeek Flash tier. When using it, enter the exact deepseek-v4.1-flash, but do not infer the native version, capacity, or upgrade scope from the name alone. It is better suited to selection based on actual results for code, documents, and multi-turn tasks.
How should I choose between it and deepseek-v4-flash?
Both IDs can continue to be used for invocation and use the same pricing tier. Existing Flash applications can retain their current configuration first, then compare responses, formatting, and usage on the same set of real tasks. The same tier does not mean results will be identical word for word, nor should the V4.1 name alone be taken to mean that every task is improved.
How do I call deepseek-v4.1-flash with the standard API?
Submit model=deepseek-v4.1-flash and messages to /v1/chat/completions. Read regular results from choices[].message.content; for streaming calls, use stream to obtain incremental results. Use this platform's API Key and set the full base URL according to the SDK you use.
How do I continue analysis from a previous turn?
Have the application save the message history, and include the user and assistant messages relevant to the current question in messages. Keep the current Flash request and a set of real examples covering short Q&A, summarization, code changes, and invalid input. When materials or constraints change, update them with the next request.
Can it directly return JSON ready for storage?
You can clearly specify fields, types, and missing-value rules in the prompt, and request a JSON draft. When using response_format, select only format types supported by this endpoint; do not treat json_schema fields or strict settings as constraints that will necessarily take effect. Before storing, you must still parse the JSON and check required fields, field types, and business conditions; valid formatting does not mean the content is correct.