Catalog Changes · 2026-10-13 03:20:46.605205

DeepSeek: DeepSeek V4.1 Flash · 2026-10-13 03:20:46.605205 UTC

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OpenRouter

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DeepSeek: DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

OpenRouter Catalog Changes

Last Observed: 2026-10-13 03:20:46.605205 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 · 3

Architecture · Instruct Type API Details /architecture/instruct_type Explicit Null	Explicit Null
Architecture · Modality API Details /architecture/modality text+image->text	text+image->text
Architecture · Tokenizer API Details /architecture/tokenizer DeepSeek	DeepSeek

Benchmarks · 3

Benchmarks · Artificial Analysis · Agentic Index API Details /benchmarks/artificial_analysis/agentic_index Explicit Null	Explicit Null
Benchmarks · Artificial Analysis · Coding Index API Details /benchmarks/artificial_analysis/coding_index Explicit Null	Explicit Null
Benchmarks · Artificial Analysis · Intelligence Index API Details /benchmarks/artificial_analysis/intelligence_index 39.5	39.5

Catalog Identity And Metadata · 11

Canonical Slug API Details /canonical_slug deepseek/deepseek-v4.1-flash-20260910	deepseek/deepseek-v4.1-flash-20260910
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
Hugging Face Id API Details /hugging_face_id deepseek-ai/DeepSeek-V4.1-Flash	deepseek-ai/DeepSeek-V4.1-Flash
Id API Details /id deepseek/deepseek-v4.1-flash	deepseek/deepseek-v4.1-flash
Knowledge Cutoff API Details /knowledge_cutoff Explicit Null	Explicit Null
Links · Details API Details /links/details /api/v1/models/deepseek/deepseek-v4.1-flash-20260910/endpoints	/api/v1/models/deepseek/deepseek-v4.1-flash-20260910/endpoints
Name API Details /name DeepSeek: DeepSeek V4.1 Flash	DeepSeek: DeepSeek V4.1 Flash
Supported Voices API Details /supported_voices Explicit Null	Explicit Null

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 0.0000012	0.0000012
Pricing · Input Cache Read API Details /pricing/input_cache_read 0.000000006	0.000000006
Input Price · USD/Token API Details /pricing/prompt 0.0000003	0.0000003

Reasoning · 3

Reasoning · Default Effort API Details /reasoning/default_effort high	high
Reasoning · Default Enabled API Details /reasoning/default_enabled True	True
Reasoning · Mandatory API Details /reasoning/mandatory False	False

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 393216	393,216

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
Benchmarks API Details /benchmarks Object · See Fields	Object · See Fields
Benchmarks · Artificial Analysis API Details /benchmarks/artificial_analysis Object · See Fields	Object · See Fields
Benchmarks · Design Arena API Details /benchmarks/design_arena Array · See Items	Array · See Items
Default Parameters API Details /default_parameters Object · See Fields	Object · See Fields
Links API Details /links Object · See Fields	Object · See Fields
Pricing API Details /pricing Object · See Fields	Object · See Fields
Pricing · Overrides API Details /pricing/overrides Array · See Items	Array · See Items
Reasoning API Details /reasoning Object · See Fields	Object · See Fields
Reasoning · Supported Efforts API Details /reasoning/supported_efforts Array · See Items	Array · See Items
Supported Parameters API Details /supported_parameters Array · See Items	Array · See Items
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

Benchmarks · Design Arena

0 items · source order preserved

Empty list

Reasoning · Supported Efforts

3 items · source order preserved

max
high
low

API Details

Item	/reasoning/supported_efforts/*
1	max
2	high
3	low

Pricing · Overrides

6 items · source order preserved

Item

Completion

Input Cache Read

Prompt

Utc End

Utc Start

0.0000006

0.000000003

0.00000015

Not Reported

Utc Days

2 items · source order preserved

saturday
sunday

API Details

Item	/pricing/overrides//utc_days/
1	saturday
2	sunday

0.0000006

0.000000003

0.00000015

100

Utc Days

5 items · source order preserved

monday
tuesday
wednesday
thursday
friday

API Details

Item	/pricing/overrides//utc_days/
1	monday
2	tuesday
3	wednesday
4	thursday
5	friday

0.0000012

0.000000006

0.0000003

400

100

Utc Days

5 items · source order preserved

monday
tuesday
wednesday
thursday
friday

API Details

Item	/pricing/overrides//utc_days/
1	monday
2	tuesday
3	wednesday
4	thursday
5	friday

0.0000006

0.000000003

0.00000015

600

400

Utc Days

5 items · source order preserved

monday
tuesday
wednesday
thursday
friday

API Details

Item	/pricing/overrides//utc_days/
1	monday
2	tuesday
3	wednesday
4	thursday
5	friday

0.0000012

0.000000006

0.0000003

1000

600

Utc Days

5 items · source order preserved

monday
tuesday
wednesday
thursday
friday

API Details

Item	/pricing/overrides//utc_days/
1	monday
2	tuesday
3	wednesday
4	thursday
5	friday

0.0000006

0.000000003

0.00000015

1000

Utc Days

5 items · source order preserved

monday
tuesday
wednesday
thursday
friday

API Details

Item	/pricing/overrides//utc_days/
1	monday
2	tuesday
3	wednesday
4	thursday
5	friday

API Details

Item	/pricing/overrides/*/completion	/pricing/overrides/*/input_cache_read	/pricing/overrides/*/prompt	/pricing/overrides/*/utc_days	/pricing/overrides/*/utc_end	/pricing/overrides/*/utc_start
1	0.0000006	0.000000003	0.00000015	Array · See Items	Not Reported	Not Reported
2	0.0000006	0.000000003	0.00000015	Array · See Items	100	0
3	0.0000012	0.000000006	0.0000003	Array · See Items	400	100
4	0.0000006	0.000000003	0.00000015	Array · See Items	600	400
5	0.0000012	0.000000006	0.0000003	Array · See Items	1000	600
6	0.0000006	0.000000003	0.00000015	Array · See Items	0	1000