DeepSeek: DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

Last Observed: 2026-10-15 06:04:16.393291 UTC

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...

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Architecture And Modalities · 2

Architecture · Modality API Details /architecture/modality text+image->text	text+image->text
Architecture · Tokenizer API Details /architecture/tokenizer DeepSeek	DeepSeek

Catalog Identity And Metadata · 19

Context Tokens API Details /context_length 1048576	1,048,576
Created API Details /created 1789021285	2026-09-10 06:21:25 UTC
Description API Details /description 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...	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...
Expiration Date API Details /expiration_date Explicit Null	Explicit Null
Id API Details /id deepseek/deepseek-v4.1-flash	deepseek/deepseek-v4.1-flash
Is Free API Details /isFree False	False
May Train On Your Prompts API Details /mayTrainOnYourPrompts False	False
Name API Details /name DeepSeek: DeepSeek V4.1 Flash	DeepSeek: DeepSeek V4.1 Flash
Opencode · Variants · High · Reasoning · Effort API Details /opencode/variants/high/reasoning/effort high	high
Opencode · Variants · High · Reasoning · Enabled API Details /opencode/variants/high/reasoning/enabled True	True
Opencode · Variants · Low · Reasoning · Effort API Details /opencode/variants/low/reasoning/effort low	low
Opencode · Variants · Low · Reasoning · Enabled API Details /opencode/variants/low/reasoning/enabled True	True
Opencode · Variants · Max · Reasoning · Effort API Details /opencode/variants/max/reasoning/effort max	max
Opencode · Variants · Max · Reasoning · Enabled API Details /opencode/variants/max/reasoning/enabled True	True
Opencode · Variants · None · Reasoning · Effort API Details /opencode/variants/none/reasoning/effort none	none
Opencode · Variants · None · Reasoning · Enabled API Details /opencode/variants/none/reasoning/enabled False	False
Preferred Index API Details /preferredIndex 6	6
Terminal Bench · Avg Attempt Cost Usd API Details /terminalBench/avgAttemptCostUsd 2.5831196000000003	2.5831196000000003
Terminal Bench · Overall Score API Details /terminalBench/overallScore 0.75280899	0.75280899

Request Limits · 1

Per Request Limits API Details /per_request_limits Explicit Null	Explicit Null

Pricing · 3

Output Price · USD/Token API Details /pricing/completion 0.000001200000	0.000001200000
Pricing · Input Cache Read API Details /pricing/input_cache_read 0.000000006000	0.000000006000
Input Price · USD/Token API Details /pricing/prompt 0.000000300000	0.000000300000

Provider Limits · 3

Top Provider · Context Length API Details /top_provider/context_length 1048576	1,048,576
Top Provider · Is Moderated API Details /top_provider/is_moderated False	False
Top Provider · Max Completion Tokens API Details /top_provider/max_completion_tokens 943718	943,718

API Structure And Container Types

Architecture API Details /architecture Object · See Fields	Object · See Fields
Architecture · Input Modalities API Details /architecture/input_modalities Array · See Items	Array · See Items
Architecture · Output Modalities API Details /architecture/output_modalities Array · See Items	Array · See Items
Opencode API Details /opencode Object · See Fields	Object · See Fields
Opencode · Variants API Details /opencode/variants Object · See Fields	Object · See Fields
Opencode · Variants · High API Details /opencode/variants/high Object · See Fields	Object · See Fields
Opencode · Variants · High · Reasoning API Details /opencode/variants/high/reasoning Object · See Fields	Object · See Fields
Opencode · Variants · Low API Details /opencode/variants/low Object · See Fields	Object · See Fields
Opencode · Variants · Low · Reasoning API Details /opencode/variants/low/reasoning Object · See Fields	Object · See Fields
Opencode · Variants · Max API Details /opencode/variants/max Object · See Fields	Object · See Fields
Opencode · Variants · Max · Reasoning API Details /opencode/variants/max/reasoning Object · See Fields	Object · See Fields
Opencode · Variants · None API Details /opencode/variants/none Object · See Fields	Object · See Fields
Opencode · Variants · None · Reasoning API Details /opencode/variants/none/reasoning Object · See Fields	Object · See Fields
Pricing API Details /pricing Object · See Fields	Object · See Fields
Supported Parameters API Details /supported_parameters Array · See Items	Array · See Items
Terminal Bench API Details /terminalBench Object · See Fields	Object · See Fields
Top Provider API Details /top_provider Object · See Fields	Object · See Fields

Architecture · Input Modalities

2 items · source order preserved

text
image

API Details

Item	/architecture/input_modalities/*
1	text
2	image

Architecture · Output Modalities

1 items · source order preserved

text

API Details

Item	/architecture/output_modalities/*
1	text

Supported Parameters

20 items · source order preserved

frequency_penalty
include_reasoning
logit_bias
logprobs
max_tokens
min_p
presence_penalty
reasoning
reasoning_effort
repetition_penalty
response_format
seed
stop
structured_outputs
temperature
tool_choice
tools
top_k
top_logprobs
top_p

API Details

Item	/supported_parameters/*
1	frequency_penalty
2	include_reasoning
3	logit_bias
4	logprobs
5	max_tokens
6	min_p
7	presence_penalty
8	reasoning
9	reasoning_effort
10	repetition_penalty
11	response_format
12	seed
13	stop
14	structured_outputs
15	temperature
16	tool_choice
17	tools
18	top_k
19	top_logprobs
20	top_p

Recorded Value History

Historical API Field

Input Price · USD/Token

6 of 6 records plotted · 0 excluded for missing or invalid coordinates.

Up to 100 recorded versions, spaced by observation order rather than elapsed time. Array fields use the minimum numeric item in each version. Missing values are omitted. Select a point to open its archived snapshot; comparison actions use the current listing. History begins at the first recorded baseline.

Axis Scale

Select a point to open its listing or add it to compare.

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