DeepSeek-V4.1-Flash by DeepSeek scores 74.0 out of 100 on the Neura Intelligence Index, ranking #61 among tracked AI models. This composite score is computed from 2 individual benchmarks across coding, math, reasoning, and language categories.

DeepSeek-V4.1-Flash costs $0.22/1M input tokens and $0.66/1M output tokens via API. At a typical 3:1 input-to-output ratio with 1M tokens/day usage, the estimated monthly cost is approximately $10.

Yes, DeepSeek-V4.1-Flash has open weights available under the mit license. You can download and self-host the model.

DeepSeek-V4.1-Flash supports a context window of 1.0 million tokens, allowing it to process very long documents, codebases, and conversations in a single request.

DeepSeek-V4.1-Flash achieves its highest score on GPQA Diamond with a score of 90.9%. This benchmark evaluates 448 graduate-level science questions (biology, chemistry, physics) designed to be hard for non-experts.