Question 1

What is DeepSeek V4 Flash?

Accepted Answer

DeepSeek V4 Flash is a model from Deepseek, released on Apr 24, 2026. DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and high-throughput workloads, while maintaining strong reasoning and coding performance. The model includes hybrid attention for efficient long-context processing. Reasoning efforts high and xhigh are supported; xhigh maps to max reasoning. It is well suited for applications such as coding assistants, chat systems, and agent workflows where responsiveness and cost efficiency are important.

Question 2

How much does DeepSeek V4 Flash cost?

Accepted Answer

On the Respan gateway, input starts at $0.0090 per 1M tokens on OpenRouter, and output starts at $0.14 per 1M tokens on Gonka24, after gateway discounts. Averaged across 28 providers, it costs $0.14 per 1M input tokens and $0.59 per 1M output tokens.

Question 3

Which providers serve DeepSeek V4 Flash on Respan?

Accepted Answer

28 providers serve DeepSeek V4 Flash: OpenRouter, Relace, Prism, DeepInfra, Gonka24, Novita, and 12 more. Inceptron, TogetherAI, and Tera require your own provider API key (BYOK).

Question 4

What is DeepSeek V4 Flash's context window?

Accepted Answer

DeepSeek V4 Flash accepts up to 1.0M tokens of context on its largest provider route.

Question 5

How do I use DeepSeek V4 Flash 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/deepseek-v4-flash". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is DeepSeek V4 Flash?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was Baseten at 571 tokens per second, and the lowest response latency was 0.7 seconds on Featherless. Speed varies with request size and provider.

Question 7

Where does DeepSeek V4 Flash rank on the Respan Index?

Accepted Answer

DeepSeek V4 Flash scores 43.3 out of 100 on the Respan Index v1.1, ranking #37 of 138 models. By category: Coding 29.9, Agents 58.4, Reasoning 38.1, Knowledge & language 35.1, and Human preference 54.6. The Respan Index combines independent and lab-reported benchmark results into one score, using benchmark data collected by llmmetric.com.

Question 8

How does DeepSeek V4 Flash score on benchmarks?

Accepted Answer

DeepSeek V4 Flash has 28 published benchmark scores, including Terminal Bench 2.1 82.7%, Toolathlon-Verified 70.7%, and GPQA Diamond 91%. Each score links to where it was published; the data is collected by llmmetric.com.

Provider	Context	Input	Output
OpenRouter`openrouter/~deepseek/deepseek-v4-flash-latest`	1.0M	$0.0090/M	$1.28/M
OpenRouter`openrouter/deepseek/deepseek-v4-flash-0731`	1.0M	$0.0090/M	$1.28/M
Relace`relace/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.02/M	$1.28/M
PrismSave 20%`prism/deepseek-v4-flash`	1M	$0.02/M	$0.44/M
OpenRouter`openrouter/deepseek/deepseek-v4-flash`	1.0M	$0.03/M	$1.28/M
Relace`relace/deepseek-ai/DeepSeek-V4-Flash-0423`	1.0M	$0.03/M	$1.28/M
DeepInfra`deepinfra/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.06/M	$0.18/M
Gonka24`gonka24/deepseek-v4-flash-0731`	399K	$0.07/M	$0.14/M
DeepInfra`deepinfra/deepseek-ai/DeepSeek-V4-Flash`	1.0M	$0.09/M	$0.18/M
NovitaSave 10%`novita/deepseek/deepseek-v4-flash`	1.0M	$0.13/M	$0.25/M
Baseten`baseten/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.13/M	$0.26/M
InceptronBYOK only`inceptron/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.13/M	$0.28/M
TogetherAIBYOK only`together_ai/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.14/M	$0.28/M
Deepseek`deepseek/deepseek-v4-flash`	1M	$0.14/M	$0.28/M
EmpirioLabs`empiriolabs/deepseek-v4-flash`	1M	$0.14/M	$0.28/M
Featherless`featherless_ai/deepseek-ai/DeepSeek-V4-Flash`	262K	$0.14/M	$0.28/M
Nebius`nebius/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.14/M	$0.28/M
Parasail`parasail/deepseek-ai/DeepSeek-V4-Flash`	1.0M	$0.14/M	$0.28/M
Parasail`parasail/deepseek-ai/DeepSeek-V4-Flash-0731`	1.0M	$0.14/M	$0.28/M
Parasail`parasail/parasail-deepseek-v4-flash`	1M	$0.14/M	$0.28/M
Parasail`parasail/parasail-deepseek-v4-flash-0731`	1.0M	$0.14/M	$0.28/M
MorphLLM`morph/morph-dsv4flash`	1.0M	$0.14/M	$0.40/M
IO.net`ionet/deepseek-ai/DeepSeek-V4-Flash`	1.0M	$0.14/M	$0.29/M
TeraBYOK only`tera/deepseek-ai/DeepSeek-V4-Flash`	1.0M	$0.19/M	$0.51/M
Inference.net`inference_net/deepseek-v4-flash`	1M	$0.23/M	$0.62/M
NovitaSave 10%`novita/deepseek/deepseek-v4-flash-0731`	1.0M	$0.40/M	$1.19/M
EmpirioLabs`empiriolabs/deepseek-v4-flash-0731`	1M	$0.42/M	$1.27/M
Inference.net`inference_net/deepseek-v4-flash-0731`	1.0M	$0.53/M	$1.58/M

DeepSeek V4 Flash

Providers

Certified where it counts.

Pricing

Cost by volume

Throughput and latency

Output speed

Time to first token

Response latency

Benchmarks

Respan Indexv1.1

Coding8

Apps