DeepSeek

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash model for reasoning and agentic coding

deepseek/deepseek-v4.1-flash

Context

Output

384K

Released

2026-09-10

Knowledge cutoff

2025-05

Types

InputTextImage

OutputText

Reasoning

Supported

Tool use

Supported

Structured output

Supported

Attachments

Supported

Open weights

Supported

Provider pricing

OpenRouter

InTextImage

OutText

Price: $0.04 / $0.64
Context: 1M
Status: Stable

NanoGPT

InTextImage

OutText

Price: $0.13 / $0.52
Context: 1M
Status: Stable

CommandCode

InTextImage

OutText

Price: $0.15 / $0.60
Context: 1M
Status: Stable

LLM Gateway

InTextImage

OutText

Price: $0.15 / $0.60
Context: 1.1M
Status: Stable

Merge Gateway

InTextImage

OutText

Price: $0.15 / $0.60
Context: 1M
Status: Stable

ZenMux

InTextImage

OutText

Price: $0.15 / $0.60
Context: 1M
Status: Stable

IteraCompute

InText

OutText

Price: $0.29 / $1.16
Context: 1M
Status: Stable

CrossModel

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

Kilo Gateway

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

NEAR AI Cloud

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

Novita AI

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

Ofox

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

Prime Inference

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

Vercel AI Gateway

InTextImage

OutText

Price: $0.30 / $1.20
Context: 1M
Status: Stable

AI/ML API

InTextImage

OutText

Price: $0.39 / $1.56
Context: 1M
Status: Stable

TensorX

InTextImage

OutText

Price: $0.50 / $1.50
Context: 1M
Status: Stable

Provider	Types	Price	Context	Status
OpenRouter	InTextImage OutText	$0.04 / $0.64	1M	Stable
NanoGPT	InTextImage OutText	$0.13 / $0.52	1M	Stable
CommandCode	InTextImage OutText	$0.15 / $0.60	1M	Stable
LLM Gateway	InTextImage OutText	$0.15 / $0.60	1.1M	Stable
Merge Gateway	InTextImage OutText	$0.15 / $0.60	1M	Stable
ZenMux	InTextImage OutText	$0.15 / $0.60	1M	Stable
IteraCompute	InText OutText	$0.29 / $1.16	1M	Stable
CrossModel	InTextImage OutText	$0.30 / $1.20	1M	Stable
Kilo Gateway	InTextImage OutText	$0.30 / $1.20	1M	Stable
NEAR AI Cloud	InTextImage OutText	$0.30 / $1.20	1M	Stable
Novita AI	InTextImage OutText	$0.30 / $1.20	1M	Stable
Ofox	InTextImage OutText	$0.30 / $1.20	1M	Stable
Prime Inference	InTextImage OutText	$0.30 / $1.20	1M	Stable
Vercel AI Gateway	InTextImage OutText	$0.30 / $1.20	1M	Stable
AI/ML API	InTextImage OutText	$0.39 / $1.56	1M	Stable
TensorX	InTextImage OutText	$0.50 / $1.50	1M	Stable

Benchmarks

GPQA Diamond
90.9 · pass@1
MathArena Apex
65.6 · pass@1
Humanity's Last Exam
36.8 · pass@1
Humanity's Last Exam
39.1 · pass@1
Codeforces
3471 · rating
Terminal-Bench
90.6 · pass@1
Terminal-Bench
30 · pass@1
Terminal-Bench
31.2 · pass@1
DeepSWE
74.2 · resolved
ProgramBench
20.3 · almost@1
NL2Repo
64 · score
CyberGym
88.1 · pass@1
ExploitGym
15.3 · pass@1
AutomationBench
54.8 · pass@1
Agents' Last Exam
31.8 · pass@1
SEC-Bench Pro
62.8 · pass@1
Humanity's Last Exam
63.9 · pass@1
Chartography
78.9 · pass@1
BabyVision
89.6 · pass@1
ZeroBench
49 · pass@5
DeepSWE
69.8 · resolved
Terminal-Bench
88 · pass@1
DeepSWE
65.6 · resolved
Terminal-Bench
84.1 · pass@1
DeepSWE
65.5 · resolved
Terminal-Bench
85 · pass@1
DeepSWE
66.2 · resolved
Terminal-Bench
86.1 · pass@1
Terminal-Bench
90.3 · pass@1
DeepSWE
72.6 · resolved
DeepSWE
70.5 · resolved
Terminal-Bench
85.8 · pass@1
DeepSWE
67.6 · resolved
Terminal-Bench
85.8 · pass@1

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