Model overview
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...
The summary below is compiled from sources by an AI model, not our own testing. Verify selection decisions against original sources and your workload.
Key features
- Sparse mixture-of-experts architecture enabling dynamic parameter activation (8B on input, 16B on output)
- First model built on DeepSeek's proprietary Causal Encoder-Decoder (CED) architecture
- Supports multimodal inputs (text and image), with text-only outputs
Limitations & considerations
- Output modality is text-only — no native image or audio generation capabilities
- Batch inference mode only — not designed for real-time, single-request latency-sensitive use cases
- Limited public documentation on reasoning depth, tool integration scope, or structured output schema constraints
Source prices & cost analysis
Prices vary by channel, region and configuration. Channel quotes are listed independently and are not treated as a single official provider price.
| Source / channel | Input | Output | Billing unit | Collected at |
|---|---|---|---|---|
| OpenRouter · deepseek/deepseek-v4.1-flash:batch ↗ | USD 0.05 | USD 0.15 | Per million tokens | 2026/11/2 06:25:22 |
Some channels offer cache discounts. Check the source for cache read, write and additional fees.
Estimate monthly base token costs
Estimates exclude cache discounts, tiered pricing, multimodal surcharges, web search, taxes and additional reasoning output.
Public benchmarks & run configuration
暂无已采集的可核验公开评分。模型未上榜不代表能力较低。
View full indexed rankings →Frequently asked questions
What does 'Flash' signify in DeepSeek V4.1 Flash?
The 'Flash' designation reflects its optimized batch inference design and sparse MoE architecture for throughput efficiency, not a consumer-facing speed claim.
Does DeepSeek V4.1 Flash support multimodal output?
No — it accepts both text and image inputs but produces only text outputs.
Is DeepSeek V4.1 Flash suitable for interactive, low-latency applications?
No — it is explicitly labeled as a batch-mode model, indicating it is not intended for interactive or low-latency deployment.
Do open weights permit free commercial use?
Not necessarily. Check the version license, commercial conditions and usage policies. Self-hosting incurs compute and maintenance costs.
Are these real-time billing prices?
These are timestamped source snapshots, not live billing prices. Check the channel for current versions, regions, discounts and billing methods.
Sources & traceability
许可证：来源未披露，须进一步核验。模型介绍与第三方评测均以原来源的具体版本和方法为准。