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DeepSeek: DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

DeepSeek: DeepSeek V4.1 Flash is a 1,048,576-token model served on Composite at $0.112 per million tokens in and $0.225 per million tokens out. Ranked #3 of 196 models by traffic on Composite over the last 30 days, taking 14.81% of tokens and 5.8% of requests (this model and its routing variants). 1 up and 0 down from 1 vote. A positive score is published once a model reaches 5 votes. Measured on Composite, 82.0% of its last 100 requests on Composite succeeded, the typical first token arrives in 14684 ms, output runs at about 45.8 tokens per second.

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Community rating

— 1 up and 0 down from 1 vote. A positive score is published once a model reaches 5 votes.

Sign in to rate this model. Ratings come from accounts that have run requests through Composite.

Specifications

Specifications and pricing as served by Composite
Model IDdeepseek/deepseek-v4.1-flash
Providercv11
Context window1,048,576 tokens
Acceptstext, image
Returnstext
Input price$0.112 per million tokens
Output price$0.225 per million tokens
Prompt cachingSupported — cached input is billed at the provider's cache rate, on credits and plans alike
ThinkingOptional - see "DeepSeek: DeepSeek V4.1 Flash (Reasoning)" in the catalog to turn it on by default
ModeratedNo
Cost on a monthly planAbout 0.9 plan credits per typical call (8k in, 1k out)
Routing endpoints10 (base plus 9 routing variants)

Traffic rank on Composite

#3 of 196

14.81% of tokens and 5.8% of requests over 30 days, including routing variants.

Success rate

82.0%

Across the last 100 requests Composite served for this model.

Time to first token

14684 ms

Median across the same sample.

Output speed

45.8 tok/s

Median generation rate after the first token.

Prompt cache hits

50.6%

Share of prompt tokens served from the provider's cache over 7 days.

Routing variants

The same model behind 9 alternative endpoints. Call the id directly to pin a route; the base id above picks for you.

RouteModel IDProviderPrice
Normal deepseek/deepseek-v4.1-flash-normal cv11 $0.188 per million tokens input · $0.750 per million tokens output
Normal + cheapThink deepseek/deepseek-v4.1-flash-normal:cheapThink cv11 $0.188 per million tokens input · $0.750 per million tokens output
Cheapest provider deepseek/deepseek-v4.1-flash:cheapest-provider Decart $0.112 per million tokens input · $0.225 per million tokens output
Cheapest provider + cheapThink deepseek/deepseek-v4.1-flash:cheapest-provider:cheapThink Decart $0.112 per million tokens input · $0.225 per million tokens output
cheapThink deepseek/deepseek-v4.1-flash:cheapThink cv11 $0.112 per million tokens input · $0.225 per million tokens output
Fast deepseek/deepseek-v4.1-flash:fast Decart $0.112 per million tokens input · $0.225 per million tokens output
Fast + cheapThink deepseek/deepseek-v4.1-flash:fast:cheapThink Decart $0.112 per million tokens input · $0.225 per million tokens output
Quality deepseek/deepseek-v4.1-flash:quality BaseTen $0.750 per million tokens input · $3.00 per million tokens output
Quality + cheapThink deepseek/deepseek-v4.1-flash:quality:cheapThink BaseTen $0.750 per million tokens input · $3.00 per million tokens output

Pricing

$0.112 per million tokens input · $0.225 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 0.9 plan credits, at the provider's own price.

Provider

cv11

Roleplay fit

DeepSeek models are known for strong reasoning and coding ability at aggressive pricing, which makes them a common pick for roleplay accounts that send a high volume of messages.

Context behavior

With a 1,048,576-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.

Cost for regular use

It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.

From the provider

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...

Supplied by cv11, not written by Composite.