DeepSeek: DeepSeek V4.1 Flash
The DeepSeek V4.1 Flash is an AI model that supports both text and image input modalities, allowing for versatile applications in various domains. It also provides tools and reasoning capabilities, making it suitable for complex tasks. For those looking for a balance between cost and performance, the DeepSeek V4.1 Flash may be worth shortlisting. Its price of $0.035 per million input tokens and $0.29 per million output tokens is relatively competitive. Although its blended benchmark score is 66.3, based on one independent evaluation, it's essential to consider whether this model meets specific needs given the available data.
Benchmark results
Independent, published benchmarks. Blended score 66.3 across 1 benchmark, last refreshed 2026-09-27. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 65.1 |
- Model ID
- deepseek/deepseek-v4.1-flash
- Vendor
- deepseek
- Released
- September 2026
- Tokenizer
- DeepSeek
- Input Modalities
- text, image
- Output Modalities
- text
- Max Output
- 384,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.04/M input and $0.29/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.03 |
| A month of a busy support chatbot | 5M in / 2M out | $0.76 |
Price & spec history
Tracked daily by PicksByModel since 2026-09-11.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-09-27 | $0.04 | $0.29 | 1,048,576 |
| 2026-09-26 | $0.14 | $0.42 | 1,048,576 |
| 2026-09-25 | $0.15 | $0.60 | 1,048,576 |
| 2026-09-24 | $0.14 | $0.42 | 1,048,576 |
| 2026-09-11 | $0.15 | $0.60 | 1,048,576 |
Strong choice for
Category rankings
Where DeepSeek: DeepSeek V4.1 Flash places across the 19 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #4 | Image CaptioningVision · of 25 ranked | 121 |
| #7 | Real-Time ChatLatency · of 25 ranked | 118 |
| #9 | Short-Form SummarizationWriting · of 25 ranked | 127 |
| #9 | Email DraftingWriting · of 25 ranked | 123 |
| #9 | Language LearningEducation · of 25 ranked | 123 |
| #9 | Chat CompanionPersonal · of 25 ranked | 127 |
| #11 | Trivia & General KnowledgePersonal · of 25 ranked | 117 |
| #13 | Self-Hosted / LocalCost · of 25 ranked | 117 |
| #14 | Code CompletionCode · of 25 ranked | 133 |
| #14 | Sales / Cold EmailBusiness · of 25 ranked | 119 |
| #14 | Job Application DraftingBusiness · of 25 ranked | 119 |
| #14 | Journaling HelperPersonal · of 25 ranked | 119 |
| #14 | Recipe GenerationPersonal · of 25 ranked | 119 |
| #21 | Cheap Bulk InferenceCost · of 25 ranked | 137 |
| #22 | Bulk Data LabelingData · of 25 ranked | 129 |
| #23 | Dataset AnnotationResearch · of 25 ranked | 133 |
| #24 | Social Media PostsWriting · of 25 ranked | 119 |
| #24 | Voice Assistant BackendVoice · of 25 ranked | 123 |
| #25 | Resume WritingBusiness · of 25 ranked | 113 |
Similar models
DeepSeek: DeepSeek V4.1 Flash (batch)
DeepSeek: DeepSeek V4 Flash Vision Exp
DeepSeek: DeepSeek V4 Flash 0423
DeepSeek: DeepSeek V4 Flash 0731
DeepSeek: DeepSeek V4 Pro 0423
DeepSeek: DeepSeek V4 Pro 0813
Quick answers
- How much does DeepSeek: DeepSeek V4.1 Flash cost?
- $0.04 per million input tokens and $0.29 per million output tokens.
- What is DeepSeek: DeepSeek V4.1 Flash's context window?
- 1,048,576 tokens, roughly 1,572 pages of text in a single request.
- Does DeepSeek: DeepSeek V4.1 Flash support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can DeepSeek: DeepSeek V4.1 Flash process images?
- Yes, it accepts image input.