DeepSeek V4 Flash
DeepSeek's mid-tier model. Long-context specialist with 1.0M window.
Scores by test
Methodology →What you need to know
DeepSeek V4 Flash is a high-performance, open-weight model characterized by extreme cost efficiency. With a blended cost of $0.245 per million tokens, it provides a low-barrier entry point for developers needing high-tier capabilities without the premium pricing of closed-source frontier models.
The model excels in complex reasoning and operational tasks, scoring 5/5 in strategic analysis, tool calling, and tabular data processing. Its strength in persona consistency and multilingual support makes it a reliable choice for specialized agents and global applications. However, it shows a significant deficiency in safety calibration, scoring 1/5, which indicates a lack of built-in guardrails.
While it supports a massive 1.0M token context window, its internal performance in long-context retrieval is slightly lower than its other capabilities at 4/5. Additionally, developers should note that structured output is a relative weakness, scoring 3/5, meaning it may require more rigorous prompting or external validation to ensure consistent schema adherence.
Use this model if you require a low-cost, open-weight solution for agentic planning, multilingual tasks, or data-heavy analysis where you can implement your own safety filters. Skip this model if your application requires strict safety alignment or native, high-reliability structured output.
Strengths — Top 3
Relative weaknesses — Bottom 3
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