DeepSeek V4.1 Flash (batch)
$0.05 per 1M input tokens and $0.15 per 1M output tokens · 1.05M context · vision, tools, reasoning, JSON, open weights.
Prices checked Oct 21, 2026 · tracked by LLM Cost Index since Oct 21, 2026
What DeepSeek V4.1 Flash (batch) costs per month
Estimated monthly bill for typical workloads, using the cached-input price for repeated context. Try your own numbers in the cost calculator.
| Workload | Per month |
|---|---|
| Customer chatbot 1,000 conversations a day, 8 turns each | $20.66 |
| Document Q&A (RAG) 500 questions a day over retrieved documents | $5.21 |
| Coding / tool-using agent 200 tasks a day, long tool-heavy contexts | $9.18 |
| Content generation 30 long articles a day | $0.473 |
| Classification / extraction 100,000 short items a day | $51.75 |
Price history
We started tracking DeepSeek V4.1 Flash (batch) on Oct 21, 2026; the chart appears as soon as there is a second data point. See all recent price changes.
Where to run DeepSeek V4.1 Flash (batch): 2 providers
Sail Research is the cheapest at $0.05 input / $0.15 output per 1M tokens. Uptime is the average over the last 30 days as reported by OpenRouter; see provider reliability.
| Provider | Input / 1M | Output / 1M | Context | Uptime | Notes |
|---|---|---|---|---|---|
| Sail Research | $0.05 | $0.15 | 1.05M | — | fp4 |
| DeepInfra | $0.112 | $0.336 | 1.05M | — | fp8 |
Cheaper alternatives to DeepSeek V4.1 Flash (batch)
Models with the same tool calling, image input, structured output for at least 20% less (3:1 input/output mix), most capable first.
| Model | Input / 1M | Output / 1M | Context | Capabilities |
|---|---|---|---|---|
| Qwen3.7 Flash Qwen | $0.03 | $0.13 | 1M | visiontoolsreasoningJSON |
How to pay less for DeepSeek V4.1 Flash (batch)
For a customer chatbot (1,000 conversations a day, 8 turns each) that costs $30.60 a month at list price without caching:
| Option | Per month | You save |
|---|---|---|
| Move to Qwen3.7 Flash (similar capabilities) | $16.54 | $14.06 (46%) |
| Use prompt caching (60% of input cached) | $20.66 | $9.94 (32%) |
Other workloads: cut-your-bill tool for DeepSeek V4.1 Flash (batch).
Specifications
| Model ID | deepseek/deepseek-v4.1-flash:batch |
| Input | text, image |
| Output | text |
| Tool calling | Yes |
| Structured output | Yes |
| Reasoning mode | Yes |
| Open weights | Yes — deepseek-ai/DeepSeek-V4.1-Flash |
| Released | Sep 10, 2026 |
FAQ
- How much does DeepSeek V4.1 Flash (batch) cost?
- $0.05 per million input tokens and $0.15 per million output tokens; cached input costs $0.0040 per million. Prices as of Oct 21, 2026.
- What is the context window of DeepSeek V4.1 Flash (batch)?
- 1.05M tokens, with up to 384K output tokens per response.
- Does DeepSeek V4.1 Flash (batch) support images, tools and structured output?
- Images as input: yes. Tool calling: yes. Structured (JSON) output: yes. Reasoning mode: yes.
- What are cheaper alternatives to DeepSeek V4.1 Flash (batch)?
- Models with the same key capabilities for at least 20% less include Qwen3.7 Flash ($0.03 / $0.13).
More from DeepSeek: all DeepSeek models · how we collect prices