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DeepSeek/deepseek-v4-flash

DeepSeek V4 Flash

DeepSeek V4 Flash is a fast, cost-efficient language model in the DeepSeek V4 family, optimized for low-latency chat, coding assistance, and high-throughput API workloads while retaining strong reasoning quality.

Avg speed
69.96t/s
First token
6.32s
Total tests
545
Providers
219
Context window
1.0M tokens
Max output
65.5K tokens
Released
Apr 2026
Input
Text
Output
Text
Features
Tool calling, Structured outputs, JSON mode, Reasoning
Tokenizer
DeepSeek
OpenRouter ID
deepseek/deepseek-v4-flash

Model Benchmarks

Category Performance
Scores across benchmark categories on a 0-100 scale.
Coverage
7 / 8
Avg. score
68.6
Category PerformanceScores across benchmark categories on a 0-100 scale.Agents61.6Coding60.8Reasoning57.6Knowledge59.4Math67.1Multilingual-Multimodal100Instruction following73.5
#1Multimodal
100
#2Instruction following
73.5
#3Math
67.1
#4Agents
61.6
#5Coding
60.8
#6Knowledge
59.4
#7Reasoning
57.6
No data:Multilingual

Detailed scores

Overall

1 metric

Overall score71.0#22 / 81

Overall score

LMSpeed rank: #22 / 81Updated: Jun 16, 2026Confidence: 2
18OpenAIGPT-5.2 Codex76.0
21OpenAIGPT-5.1 Codex Max75.0
22DeepSeekDeepSeek V4 Flash71.0
22GrokGrok 4.2071.0
22MiMo-V2.571.0

Pricing

2 metrics

Input price$0.140/M#10 / 95Output price$0.280/M#2 / 95

Input price

Source: Artificial Analysis / DeepSeek V4 Flash (Reasoning, High Effort)LMSpeed rank: #10 / 95Updated: Jun 26, 2026Confidence: 4
3StepfunStep 3.5 Flash$0.100/M
9Phi 4$0.125/M
10DeepSeekDeepSeek V4 Flash$0.140/M
10MiMo-V2.5$0.140/M
10Ring Flash 2.0$0.140/M

Output price

Source: Artificial Analysis / DeepSeek V4 Flash (Reasoning, High Effort)LMSpeed rank: #2 / 95Updated: Jun 26, 2026Confidence: 4
1Ministral 3$0.200/M
2DeepSeekDeepSeek V4 Flash$0.280/M
2MiMo-V2.5$0.280/M
4Devstral Small$0.300/M
4MetaAIHermes 3 Llama 3.1$0.300/M

Reasoning & knowledge

21 metrics

MMLU-Pro86.4%#12 / 74GPQA86.7%#22 / 103

MMLU-Pro

LMSpeed rank: #12 / 74Updated: Jun 16, 2026Confidence: 2
10OpenAIGPT-5.187.0%
11OpenAIGPT-5 Codex86.5%
12DeepSeekDeepSeek V4 Flash86.4%
13GeminiGemini 2.5 Pro86.2%
14ClaudeClaude Opus 486.0%

GPQA

Source: Artificial Analysis / DeepSeek V4 Flash (Reasoning, High Effort)LMSpeed rank: #22 / 103Updated: Jun 26, 2026Confidence: 4
20MiMo-V2-Pro87.0%
21ChatGLMGLM-5.186.8%
22DeepSeekDeepSeek V4 Flash86.7%
23MiMo-V2.5-Pro86.6%
24OpenAIGPT-5.1 Codex86.0%

HLE

Source: Artificial Analysis / DeepSeek V4 Flash (Reasoning, High Effort)LMSpeed rank: #20 / 103Updated: Jun 26, 2026Confidence: 4
18MinimaxMiniMax M2.728.1%
19ChatGLMGLM-5.128.0%
20DeepSeekDeepSeek V4 Flash27.8%
21GeminiGemini 3 Pro27.6%
22QwenQwen3.527.3%

MRCR 1M

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro83.3
2DeepSeekDeepSeek V4 Flash76.9

CorpusQA 1M

LMSpeed rank: #1 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Flash59.3
2DeepSeekDeepSeek V4 Pro56.5

AA-LCR

LMSpeed rank: #28 / 56Updated: Jun 16, 2026Confidence: 2
26ChatGLMGLM-4.764.0
27ChatGLMGLM-563.3
28DeepSeekDeepSeek V4 Flash62.7
29ChatGLMGLM-5.162.3
30ChatGLMGLM-5V Turbo61.0

CritPt

LMSpeed rank: #20 / 43Updated: Jun 16, 2026Confidence: 2
18ChatGLMGLM-5.14.6
19MiMo-V2.5-Pro4.0
20DeepSeekDeepSeek V4 Flash3.4
21MoonshotAIKimi K2.53.1
22QwenQwen3.6 Plus2.9

HMMT Feb 2026

LMSpeed rank: #2 / 8Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro94.0
2DeepSeekDeepSeek V4 Flash91.9
3QwenQwen3.587.9
4QwenQwen3.6 Plus87.8
5MoonshotAIKimi K2.587.1

IMOAnswerBench

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro88.0
2DeepSeekDeepSeek V4 Flash85.1

Apex

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro27.4
2DeepSeekDeepSeek V4 Flash19.1

Apex Shortlist

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro85.5
2DeepSeekDeepSeek V4 Flash72.1

Knowledge score

LMSpeed rank: #32 / 66Updated: Jun 16, 2026Confidence: 2
30GeminiGemini 2.5 Pro64.9
31MiMo-V2-Flash63.3
32DeepSeekDeepSeek V4 Flash62.1
33OpenAIO161.1
34OpenAIO3 Mini60.9

SimpleQA

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro46.2
2DeepSeekDeepSeek V4 Flash28.9

Chinese-SimpleQA

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro77.7
2DeepSeekDeepSeek V4 Flash73.2

GPQA-D

LMSpeed rank: #9 / 12Updated: Jun 16, 2026Confidence: 2
7GrokGrok 4.2088.5
8MoonshotAIKimi K2.587.6
9DeepSeekDeepSeek V4 Flash87.4
10MinimaxMiniMax M2.787.0
11ChatGLMGLM-5.186.2

Artificial Analysis Intelligence Index

LMSpeed rank: #22 / 65Updated: Jun 16, 2026Confidence: 2
20ChatGLMGLM-5 Turbo46.8
21ClaudeClaude Opus 4.646.5
22DeepSeekDeepSeek V4 Flash46.0
23OpenAIGPT-544.6
24ClaudeClaude Sonnet 4.644.4

AA-GPQA Diamond

LMSpeed rank: #18 / 62Updated: Jun 16, 2026Confidence: 2
16MiMo-V2-Pro87.0
17ChatGLMGLM-5.186.8
18DeepSeekDeepSeek V4 Flash86.7
19MiMo-V2.5-Pro86.6
20QwenQwen3.586.1

AA-HLE

LMSpeed rank: #16 / 62Updated: Jun 16, 2026Confidence: 2
14MinimaxMiniMax M2.728.1
15ChatGLMGLM-5.128.0
16DeepSeekDeepSeek V4 Flash27.8
17ChatGLMGLM-527.2
18OpenAIGPT-5.4 Mini26.6

AA-Omniscience Accuracy

LMSpeed rank: #23 / 57Updated: Jun 16, 2026Confidence: 2
21OpenAIGPT-5.4 Mini37.5
22GeminiGemini 3.1 Flash Lite36.4
23DeepSeekDeepSeek V4 Flash35.5
24OpenAIO134.7
25MoonshotAIKimi K2.534.3

AA-Omniscience Hallucination Rate

LMSpeed rank: #9 / 57Updated: Jun 16, 2026Confidence: 2
7GeminiGemini 3 Flash90.2
8OpenAIGPT-5.4 Mini89.8
9DeepSeekDeepSeek V4 Flash89.7
10DeepSeekDeepSeek V389.4
10QwenQwen3 Max89.4

AA-IFBench

LMSpeed rank: #12 / 59Updated: Jun 16, 2026Confidence: 2
10QwenQwen3.6 Plus75.2
11OpenAIGPT-5.473.9
12DeepSeekDeepSeek V4 Flash73.5
13OpenAIGPT-5.4 Mini73.3
14ChatGLMGLM-5 Turbo73.2

Coding & agents

23 metrics

LiveCodeBench88.4%#4 / 70SciCode42.0%#37 / 101

LiveCodeBench

LMSpeed rank: #4 / 70Updated: Jun 16, 2026Confidence: 2
2ChatGLMGLM-4.789.4%
3OpenAIGPT-5.288.9%
4DeepSeekDeepSeek V4 Flash88.4%
5OpenAIGPT-5.186.8%
6OpenAIO4 Mini85.9%

SciCode

Source: Artificial Analysis / DeepSeek V4 Flash (Reasoning, High Effort)LMSpeed rank: #37 / 101Updated: Jun 26, 2026Confidence: 4
35MiMo-V2-Pro42.5%
36MoonshotAIKimi K2 Thinking42.4%
37DeepSeekDeepSeek V4 Flash42.0%
37QwenQwen3.542.0%
39GeminiGemini 3.1 Flash Lite41.9%

Coding score

LMSpeed rank: #14 / 68Updated: Jun 16, 2026Confidence: 2
12ClaudeClaude Opus 4.685.5
13ChatGLMGLM-5.182.8
14DeepSeekDeepSeek V4 Flash82.5
15ClaudeClaude Sonnet 4.682.0
16MoonshotAIKimi K2.581.0

Codeforces

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro2919.0
2DeepSeekDeepSeek V4 Flash2816.0

SWE-bench Verified

LMSpeed rank: #11 / 28Updated: Jun 16, 2026Confidence: 2
9DeepSeekDeepSeek V4 Pro79.4
10QwenQwen3.6 Plus78.8
11DeepSeekDeepSeek V4 Flash78.6
12MiMo-V2-Pro78.0
13ChatGLMGLM-577.8

SWE-bench Pro

LMSpeed rank: #16 / 19Updated: Jun 16, 2026Confidence: 2
14DeepSeekDeepSeek V4 Pro54.4
15ClaudeClaude Opus 4.653.4
16DeepSeekDeepSeek V4 Flash52.3
17GrokGrok 4.2051.8
18QwenQwen3.550.9

SWE Multilingual

LMSpeed rank: #8 / 8Updated: Jun 16, 2026Confidence: 2
4DeepSeekDeepSeek V4 Pro74.1
5QwenQwen3.6 Plus73.8
6ChatGLMGLM-573.3
7MoonshotAIKimi K2.573.0
8DeepSeekDeepSeek V4 Flash70.2

Terminal-Bench 2.0

LMSpeed rank: #7 / 7Updated: Jun 16, 2026Confidence: 2
3ClaudeClaude Opus 4.7 Max69.4
4MiMo-V2.5-Pro68.4
5MiMo-V2.565.8
6DeepSeekDeepSeek V4 Pro63.3
7DeepSeekDeepSeek V4 Flash56.6

AA Coding Index

LMSpeed rank: #23 / 60Updated: Jun 16, 2026Confidence: 2
21MinimaxMiniMax M2.741.9
22MiMo-V2-Pro41.4
23DeepSeekDeepSeek V4 Flash39.8
24MoonshotAIKimi K2.539.5
25OpenAIO338.4

Terminal-Bench Hard

LMSpeed rank: #22 / 58Updated: Jun 16, 2026Confidence: 2
19MiMo-V2-Pro40.9
21MinimaxMiniMax M2.739.4
22DeepSeekDeepSeek V4 Flash38.6
23OpenAIGPT-5.2 Codex37.1
23OpenAIO337.1

AA-SciCode

LMSpeed rank: #29 / 62Updated: Jun 16, 2026Confidence: 2
27GeminiGemini 2.5 Pro42.8
28MiMo-V2-Pro42.5
29DeepSeekDeepSeek V4 Flash42.0
30GeminiGemini 3.1 Flash Lite41.9
31QwenQwen3.541.1

Agentic score

LMSpeed rank: #24 / 68Updated: Jun 16, 2026Confidence: 2
22OpenAIO3 Mini61.7
23OpenAIO3 Pro61.4
24DeepSeekDeepSeek V4 Flash60.6
25ChatGLMGLM-5V Turbo60.4
26OpenAIGPT-5.259.2

Terminal-Bench 2.0

LMSpeed rank: #16 / 23Updated: Jun 16, 2026Confidence: 2
14ClaudeClaude Sonnet 4.659.1
15MinimaxMiniMax M2.757.0
16DeepSeekDeepSeek V4 Flash56.6
17ChatGLMGLM-556.2
18QwenQwen3.552.5

BrowseComp

LMSpeed rank: #12 / 13Updated: Jun 16, 2026Confidence: 2
9OpenAIGPT-5.265.8
10QwenQwen3.562.0
11MoonshotAIKimi K2.560.6
12DeepSeekDeepSeek V4 Flash53.5
13ChatGLMGLM-4.752.0

HLE w/ tools

LMSpeed rank: #2 / 2Updated: Jun 16, 2026Confidence: 2
1DeepSeekDeepSeek V4 Pro44.7
2DeepSeekDeepSeek V4 Flash40.3

MCP Atlas

LMSpeed rank: #6 / 13Updated: Jun 16, 2026Confidence: 2
4ChatGLMGLM-5.171.8
5OpenAIGPT-5.470.6
6DeepSeekDeepSeek V4 Flash67.4
7OpenAIGPT-5.4 Mini57.7
8OpenAIGPT-5.4 Nano56.1

Toolathlon

LMSpeed rank: #5 / 12Updated: Jun 16, 2026Confidence: 2
4MinimaxMiniMax M2.746.3
5ClaudeClaude Opus 4.543.5
5DeepSeekDeepSeek V4 Flash43.5
7OpenAIGPT-5.4 Mini42.9
8QwenQwen3.6 Plus39.8

AA Agentic Index

LMSpeed rank: #12 / 56Updated: Jun 16, 2026Confidence: 2
10ChatGLMGLM-563.1
11MiMo-V2-Pro62.8
12DeepSeekDeepSeek V4 Flash62.3
13QwenQwen3.6 Plus61.7
14ClaudeClaude Sonnet 4.661.6

Tau2-Telecom

LMSpeed rank: #8 / 57Updated: Jun 16, 2026Confidence: 2
6ChatGLMGLM-4.795.9
6MoonshotAIKimi K2.595.9
8DeepSeekDeepSeek V4 Flash95.6
8GeminiGemini 3.1 Pro95.6
10MiMo-V2-Pro95.0

GDPval-AA

LMSpeed rank: #16 / 51Updated: Jun 16, 2026Confidence: 2
14OpenAIGPT-5.4 Mini46.9
15ClaudeClaude Opus 4.545.9
16DeepSeekDeepSeek V4 Flash45.7
17MiMo-V2-Pro45.3
18ChatGLMGLM-544.6

GDPval-AA

LMSpeed rank: #16 / 56Updated: Jun 16, 2026Confidence: 2
14OpenAIGPT-5.4 Mini1438.0
15ClaudeClaude Opus 4.51418.0
16DeepSeekDeepSeek V4 Flash1414.0
17MiMo-V2-Pro1405.0
18ChatGLMGLM-51391.0

Claw-Eval

LMSpeed rank: #10 / 21Updated: Jun 16, 2026Confidence: 2
8ClaudeClaude Opus 4.559.6
9QwenQwen3.6 Plus58.8
10DeepSeekDeepSeek V4 Flash57.8
10GeminiGemini 3.1 Pro57.8
10MiMo-V2-Pro57.8

Gert Labs

LMSpeed rank: #13 / 36Updated: Jun 16, 2026Confidence: 2
11GeminiGemini 3.1 Pro56.9
12GeminiGemini 3 Flash56.6
13DeepSeekDeepSeek V4 Flash54.4
14OpenAIGPT-5.2 Codex51.8
15ChatGLMGLM-551.0

Language & media

1 metric

Design Arena Website1259.0#19 / 46

Design Arena Website

LMSpeed rank: #19 / 46Updated: Jun 16, 2026Confidence: 2
17OpenAIGPT-5.41269.0
18QwenQwen3.6 Plus1264.0
19DeepSeekDeepSeek V4 Flash1259.0
20GeminiGemini 3 Flash1241.0
21OpenAIGPT-5.21240.0
Updated: Jun 26, 2026

Pricing Comparison

Compare DeepSeek V4 Flash API pricing across 178 providers. Input prices range from $0.0007 to $1398.60 per million input. VSLLM offers the lowest rate at $0.0007/M. 15 providers offer free API credits or a free tier.

ProviderModel VariantAuditInput ($/M)Output ($/M)Speed (t/s)First token
Seamee API100%
DeepSeekdeepseek-v4-flash—$0.140$0.280143.0 t/s1.76 s
Fengsili API98.7%
DeepSeekdeepseek-v4-flash—$75.00$75.0086.3 t/s4.08 s
钠 API100%
DeepSeekdeepseek-v4-flash—$0.137-2%$0.274-2%84.8 t/s6.39 s
DeepSeekdeepseek-ai/DeepSeek-V4-Flash—$0.0027-98%$0.0027-99%——
Tokeness99.9%
DeepSeekdeepseek-v4-flash648468100$0.084-40%$0.168-40%73.1 t/s2.52 s
PICO API100%
DeepSeekdeepseek-v4-flash10068100100$0.137-2%$0.274-2%62.1 t/s2.19 s
ChooseC API99.6%
DeepSeekdeepseek-v4-flash—$1.00$2.0056.4 t/s3.93 s
PICO AI1.7%
DeepSeekdeepseek-v4-flash—$1.00$2.0049.2 t/s35.50 s
星见雅 API100%
DeepSeekdeepseek-v4-flash—FreeFree46.9 t/s10.09 s
DeepSeekDeepseek-V4-Flash—FreeFree——
DeepSeekdeepseek-ai/deepseek-v4-flash—FreeFree——
DeepSeek英伟达/deepseek-ai/deepseek-v4-flash—FreeFree——
CatClaw API100%
DeepSeekdeepseek-v4-flash766886100$0.0080-94%$0.0080-97%42.3 t/s3.08 s
6i20%
DeepSeekdeepseek-v4-flash—$0.500$1.0031.3 t/s6.18 s
9527 API99.6%
DeepSeekdeepseek-v4-flash—$0.120-14%$0.210-25%31.1 t/s7.88 s
DeepSeekdeepseek-ai/deepseek-v4-flash—$0.140$0.280——
涵冰API99.7%
DeepSeekdeepseek-v4-flash—$0.020-86%$0.030-89%21.1 t/s2.79 s
V-API100%
DeepSeekDeepSeek-V4-Flash—$0.020-86%$0.020-93%——
DeepSeekdeepseek-v4-flash—$1.00$2.00——
Thorbase100%
DeepSeekdeepseek/deepseek-v4-flash—$0.098-30%$0.196-30%——
Showing 20 of 193 providers.

Pricing data from provider public APIs

DeepSeek V4 Flash by DeepSeek is available through 193 API providers on LMSpeed. Compare API pricing from $0.0007 to $1398.60 per million input tokens across providers. Free API access is offered by 15 providers. Context window: 1,048,576. Average measured output speed is 70 tok/s.

Also known as

DeepSeek-V4-FlashDeepSeek-V4-Flash-2026-04-23DeepSeek-V4-Flash-globalDeepSeek-V4-flashDeepseek-V4-Flash

Frequently Asked Questions

Is DeepSeek V4 Flash API free?
Yes, DeepSeek V4 Flash is available for free through 15 API providers on LMSpeed, including 梦德 API, 星见雅 API, 星见雅 API, 星见雅 API, 星见雅 API. These providers offer free API credits or a free tier with no per-token charges.
How much does DeepSeek V4 Flash API cost?
DeepSeek V4 Flash API pricing ranges from $0.0007 to $1398.60 per million input tokens across 193 providers. VSLLM offers the cheapest rate at $0.0007/M. Output pricing varies by provider.
Which provider has the cheapest DeepSeek V4 Flash API pricing?
The cheapest DeepSeek V4 Flash API pricing is offered by VSLLM at $0.0007 per million input tokens. Compare all 193 providers above to find the best pricing per token for your use case.

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Data as of Jun 26, 2026, 06:04 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.·Standard benchmark data may include BenchLM and other public sources.