Question 1

What is DeepSeek V4.1 Flash (batch)?

Accepted Answer

DeepSeek V4.1 Flash (batch) is a model from Deepseek, released on Sep 22, 2026. 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...

Question 2

How much does DeepSeek V4.1 Flash (batch) cost?

Accepted Answer

On the Respan gateway, input starts at $0.11 per 1M tokens on OpenRouter, and output starts at $0.34 per 1M tokens on OpenRouter, after gateway discounts.

Question 3

Which providers serve DeepSeek V4.1 Flash (batch) on Respan?

Accepted Answer

DeepSeek V4.1 Flash (batch) is served by OpenRouter.

Question 4

What is DeepSeek V4.1 Flash (batch)'s context window?

Accepted Answer

DeepSeek V4.1 Flash (batch) accepts up to 1.0M tokens of context.

Question 5

How do I use DeepSeek V4.1 Flash (batch) with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "deepseek-v4.1-flash:batch". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

Where does DeepSeek V4.1 Flash (batch) rank on the Respan Index?

Accepted Answer

DeepSeek V4.1 Flash (batch) scores 50.9 out of 100 on the Respan Index v1.1, ranking #20 of 138 models. By category: Coding 40.1, Agents 61.2, Reasoning 48.2, Knowledge & language 51.5, and Human preference 55.7. The Respan Index combines independent and lab-reported benchmark results into one score, using benchmark data collected by llmmetric.com.

Question 7

How does DeepSeek V4.1 Flash (batch) score on benchmarks?

Accepted Answer

DeepSeek V4.1 Flash (batch) has 17 published benchmark scores, including Terminal-Bench 2.1 90.6%, LiveBench Agentic Coding 77.3%, and GPQA Diamond 90.9%. Each score links to where it was published; the data is collected by llmmetric.com.

DeepSeek V4.1 Flash (batch)

Providers

Pricing

Cost by volume

Benchmarks

Certified where it counts.

Respan Indexv1.1

Coding4

Agents2

Reasoning4

Math1

Knowledge2

Arena3

Other1

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