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DeepSeek V4 Flash 0731

As of October 20, 2026, DeepSeek V4 Flash 0731 ranks #40 of 213 models overall with 34.3 on the Artificial Analysis Intelligence Index. Its strongest category is reasoning, where it ranks #40 of 203. DeepSeek V4 Flash 0731 costs $0.44 per million input tokens and $1.32 per million output tokens. It was released on July 31, 2026.

Its output price ranks 162 of 349 priced models, counting from the cheapest.

  • Coding index Not benchmarked No benchmark coverage
  • Cost per solved task $0.01 One SWE-bench Verified task, solved
  • Output, per million tokens $1.32 162 of 349 from the cheapest
  • Input, per million tokens $0.44 OpenRouter list price
  • Context window 1.05M Tokens per request
  • Downloads, 30 days 4.33M Hugging Face

About and specs

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....

API model id deepseek/deepseek-v4-flash-0731
  • Tool callingListed
  • Structured outputsListed
  • JSON modeListed
  • Reasoning modeListed
  • Web searchNot listed
Takes in
Text
Gives back
Text
Context window
1.05M tokens
Max output
131K tokens
Knowledge cutoff
Not published
Cached input $/Mtok
$0.014
Cache write $/Mtok
No cache write price listed
Reasoning $/Mtok
Not priced apart
Web search, per request
No search price listed
Tokenizer
DeepSeek
Requests moderated
No
Withdrawn on
No date announced
Parameters
304.2B, per its Hugging Face weights
Downloads, all time
11.4M on Hugging Face
Training compute
2.5e24 FLOP, Epoch AI estimate
Output speed
Not measured
Time to first token
Not measured
Speed on OpenRouter
Not measured
First token on OpenRouter
Not measured

Benchmarks: 55 of 190 measured

The tick on a coding bar is the median of every model measured on it. Outside coding, the place is this model's rank on that board. A board that never ran the model says so.

Coding index

Not benchmarked
  • Aider polyglot Not measured
  • SWE-bench Verified Not measured
  • LiveBench coding Not measured
  • LMArena WebDev Elo, scaled from 1200 to 1900 Not measured

No coding benchmark has measured this model, so there is no index. We do not estimate one from its price, its maker or its siblings. How it is weighted

Other public boards

All rankings

Coding15 of 34 boards

9 more coding boards

Not measured on SWE-bench Lite, SWE-bench (full test set), SWE-bench Multimodal, SWE-bench Multilingual, SWE-bench Multimodal (Vals AI), Vibe Code Bench 1-100 (Vals AI), LiveCodeBench (Artificial Analysis run), Terminal-Bench Hard (Artificial Analysis run), Terminal-Bench, DeepSWE, FrontierSWE, GSO-Bench, MirrorCode, Cybench, LMArena Text: coding, LMArena Text: software and IT, LMArena WebDev: React, LMArena WebDev: HTML, LMArena WebDev: from an image

Intelligence2 of 2 boards

Agentic work7 of 39 boards

1 more agentic work boards

Not measured on Design Arena: agents building web apps, Design Arena: agents building full-stack apps, Design Arena: agents building mobile apps, Design Arena: agents building Android apps, Design Arena: agents building Godot games, Design Arena: agents building games, Design Arena: HTML slides, Design Arena: PowerPoint slides, Design Arena: spreadsheets, LiveBench research, LiveBench browser, LiveBench long agentic, SREBench (Vals AI), Harvey's Legal Agent Benchmark (Vals AI), Vals Science Index, Time Horizon Index (Vals AI), CUA-bench (Vals AI), Robo-bench (Vals AI), τ²-Bench Telecom, APEX-Agents, METR time horizons, Remote Labor Index, GDPval, OSWorld 2.0, BALROG, DeepResearch Bench, PostTrainBench, TheAgentCompany, OSWorld, SpireClimb, Vending-Bench 2, LMArena Search

Reasoning9 of 21 boards

3 more reasoning boards

Not measured on LiveBench reasoning, MysteryMechanism (Vals AI), MMMU Pro (Vals AI), Humanity's Last Exam, EBR-bench, VPCT, BIG-Bench Hard, LMArena Text: hard prompts, LMArena Text: expert, LMArena Text: hard prompts in English, LMArena Vision: diagrams, LMArena Vision: homework

Math4 of 13 boards

Not measured on AIME, MATH 500 (Vals AI), MGSM (Vals AI), AA Math Index, AIME 2025 (Artificial Analysis run), MATH level 5, GSM8K, LMArena Text: math, LMArena Text: mathematical work

Knowledge6 of 17 boards

Not measured on CaseLaw (Vals AI), MortgageTax (Vals AI), MedQA (Vals AI), MMLU Pro (Artificial Analysis run), MMLU, GeoBench, AI2 Reasoning Challenge, LMArena Text: science, LMArena Text: medicine and healthcare, LMArena Text: legal and government, LMArena Text: business and finance

Web design8 of 9 boards

2 more web design boards

Not measured on LiveBench design

General4 of 46 boards

Not measured on Vals Index, LiveBench data analysis, Public Benefits Bench (Vals AI), SAGE (Vals AI), Vals Multimodal Index, IFBench, Fiction.LiveBench, Creative writing (Lech Mazur), CL-bench, Surface Evolver Bench, Furniture assembly, ExploitBench, HellaSwag, WinoGrande, PIQA, CL-bench Life, LMArena Text, LMArena Text: instruction following, LMArena Text: creative writing, LMArena Vision, LMArena Text: English, LMArena Text: non-English, LMArena Text: Chinese, LMArena Text: German, LMArena Text: Japanese, LMArena Text: Korean, LMArena Text: French, LMArena Text: Spanish, LMArena Text: Russian, LMArena Text: Polish, LMArena Text: multi-turn, LMArena Text: longer queries, LMArena Text: writing and language, LMArena Text: entertainment and media, LMArena Vision: English, LMArena Vision: Chinese, LMArena Vision: reading text, LMArena Vision: humor, LMArena Vision: captioning, LMArena Vision: recognizing things, LMArena Vision: creative writing, LMArena Document

Image generation0 of 5 boards

Not measured on Design Arena: images, Design Arena: graphic design, Design Arena: logos, LMArena Text to Image, LMArena Image Edit

Public boards shown as published (Vals AI, Artificial Analysis, Design Arena) and kept out of the coding index. Each links to its source on the benchmark page.

All 190 benchmarks as a table
Benchmark results for DeepSeek V4 Flash 0731
BenchmarkResultIndex weight
Aider polyglotCoding Not measured 35%
SWE-bench VerifiedCoding Not measured 30%
SWE-bench LiteCoding Not measured Not in index
SWE-bench (full test set)Coding Not measured Not in index
SWE-bench MultimodalCoding Not measured Not in index
SWE-bench MultilingualCoding Not measured Not in index
LiveBench codingCoding Not measured 20%
LMArena WebDevCoding Not measured 15%
Vals IndexGeneral Not measured Not in index
GPQA DiamondReasoning 89.9% Not in index
AIMEMath Not measured Not in index
MMLU ProKnowledge 86.2% Not in index
AA Intelligence IndexIntelligence 34.3 Not in index
AA Coding IndexCoding 69.1 Not in index
AA Agentic IndexAgentic work 41.0 Not in index
Design Arena: websitesWeb design 1238 Not in index
Design Arena: UI componentsWeb design 1236 Not in index
Design Arena: game devWeb design 1208 Not in index
Design Arena: data vizWeb design 1180 Not in index
Design Arena: 3DWeb design 1209 Not in index
Design Arena: all code categoriesWeb design 1230 Not in index
Design Arena: SVGWeb design 1184 Not in index
Design Arena: ASCII artWeb design 1091 Not in index
Design Arena: agents building web appsAgentic work Not measured Not in index
Design Arena: agents building full-stack appsAgentic work Not measured Not in index
Design Arena: agents building mobile appsAgentic work Not measured Not in index
Design Arena: agents building Android appsAgentic work Not measured Not in index
Design Arena: agents building Godot gamesAgentic work Not measured Not in index
Design Arena: agents building gamesAgentic work Not measured Not in index
Design Arena: HTML slidesAgentic work Not measured Not in index
Design Arena: PowerPoint slidesAgentic work Not measured Not in index
Design Arena: spreadsheetsAgentic work Not measured Not in index
Design Arena: imagesImage generation Not measured Not in index
Design Arena: graphic designImage generation Not measured Not in index
Design Arena: logosImage generation Not measured Not in index
LiveBench reasoningReasoning Not measured Not in index
LiveBench data analysisGeneral Not measured Not in index
LiveBench researchAgentic work Not measured Not in index
LiveBench browserAgentic work Not measured Not in index
LiveBench long agenticAgentic work Not measured Not in index
LiveBench designWeb design Not measured Not in index
LiveCodeBench (Vals AI)Coding 87.3% Not in index
SWE-bench Verified (Vals AI)Coding 88.8% Not in index
Terminal-Bench 4 (Vals AI)Coding 18.7% Not in index
Vibe Code Bench (Vals AI)Coding 74.7% Not in index
Code migration (Vals AI)Coding 38.6% Not in index
ProgramBench (Vals AI)Coding 0.0% Not in index
SREBench (Vals AI)Agentic work Not measured Not in index
IOI (Vals AI)Coding 32.7% Not in index
Terminal-Bench 2.1 (Vals AI)Coding 67.0% Not in index
SWE-bench Multimodal (Vals AI)Coding Not measured Not in index
Vibe Code Bench 1-100 (Vals AI)Coding Not measured Not in index
SkillsBench (Vals AI)Coding 50.7% Not in index
CyberBench (Vals AI)Coding 72.1% Not in index
Finance Agent (Vals AI)Agentic work 49.5% Not in index
Tax Agent Bench (Vals AI)Agentic work 28.1% Not in index
Legal Research Bench (Vals AI)Agentic work 30.3% Not in index
Harvey's Legal Agent Benchmark (Vals AI)Agentic work Not measured Not in index
Excel Modeling Benchmark (Vals AI)Agentic work 57.0% Not in index
BioMysteryBench (Vals AI)Agentic work 64.4% Not in index
Terminal-Bench-Science (Vals AI)Agentic work 4.3% Not in index
Vals Science IndexAgentic work Not measured Not in index
Time Horizon Index (Vals AI)Agentic work Not measured Not in index
CUA-bench (Vals AI)Agentic work Not measured Not in index
Robo-bench (Vals AI)Agentic work Not measured Not in index
Public Benefits Bench (Vals AI)General Not measured Not in index
MysteryMechanism (Vals AI)Reasoning Not measured Not in index
MMMU Pro (Vals AI)Reasoning Not measured Not in index
MATH 500 (Vals AI)Math Not measured Not in index
MGSM (Vals AI)Math Not measured Not in index
SAGE (Vals AI)General Not measured Not in index
LegalBench (Vals AI)Knowledge 77.7% Not in index
CaseLaw (Vals AI)Knowledge Not measured Not in index
CorpFin (Vals AI)Knowledge 61.9% Not in index
TaxEval (Vals AI)Knowledge 70.7% Not in index
MortgageTax (Vals AI)Knowledge Not measured Not in index
MedQA (Vals AI)Knowledge Not measured Not in index
MedCode (Vals AI)Knowledge 41.4% Not in index
MedScribe (Vals AI)General 80.4% Not in index
Vals Multimodal IndexGeneral Not measured Not in index
AA Math IndexMath Not measured Not in index
GPQA Diamond (Artificial Analysis run)Reasoning 90.8% Not in index
Humanity's Last Exam (Artificial Analysis run)Reasoning 38.6% Not in index
MMLU Pro (Artificial Analysis run)Knowledge Not measured Not in index
LiveCodeBench (Artificial Analysis run)Coding Not measured Not in index
SciCodeCoding 50.3% Not in index
Terminal-Bench Hard (Artificial Analysis run)Coding Not measured Not in index
IFBenchGeneral Not measured Not in index
Long context reasoning (AA-LCR)General 79.7% Not in index
τ²-Bench TelecomAgentic work Not measured Not in index
AIME 2025 (Artificial Analysis run)Math Not measured Not in index
Terminal-BenchCoding Not measured Not in index
DeepSWECoding Not measured Not in index
FrontierCodeCoding 18.8% Not in index
FrontierSWECoding Not measured Not in index
GSO-BenchCoding Not measured Not in index
WeirdMLCoding 63.0% Not in index
MirrorCodeCoding Not measured Not in index
APEX-AgentsAgentic work Not measured Not in index
METR time horizonsAgentic work Not measured Not in index
Remote Labor IndexAgentic work Not measured Not in index
GDPvalAgentic work Not measured Not in index
OSWorld 2.0Agentic work Not measured Not in index
BALROGAgentic work Not measured Not in index
DeepResearch BenchAgentic work Not measured Not in index
PostTrainBenchAgentic work Not measured Not in index
GPQA Diamond (Epoch AI run)Reasoning 91.0% Not in index
ARC-AGIReasoning 89.0% Not in index
ARC-AGI-2Reasoning 61.4% Not in index
Humanity's Last ExamReasoning Not measured Not in index
SimpleBenchReasoning 61.1% Not in index
Chess puzzlesReasoning 32.0% Not in index
Mystery game puzzlesReasoning 34.0% Not in index
EBR-benchReasoning Not measured Not in index
OTIS Mock AIMEMath 94.4% Not in index
FrontierMath, tiers 1 to 3Math 57.5% Not in index
FrontierMath, tier 4Math 24.4% Not in index
ProofBenchMath 56.0% Not in index
MATH level 5Math Not measured Not in index
GSM8KMath Not measured Not in index
SimpleQA VerifiedKnowledge 33.6% Not in index
MMLUKnowledge Not measured Not in index
GeoBenchKnowledge Not measured Not in index
DTBenchGeneral 90.9% Not in index
LMCAGeneral 41.7% Not in index
Fiction.LiveBenchGeneral Not measured Not in index
Creative writing (Lech Mazur)General Not measured Not in index
CL-benchGeneral Not measured Not in index
Surface Evolver BenchGeneral Not measured Not in index
Furniture assemblyGeneral Not measured Not in index
ExploitBenchGeneral Not measured Not in index
CybenchCoding Not measured Not in index
TheAgentCompanyAgentic work Not measured Not in index
OSWorldAgentic work Not measured Not in index
SpireClimbAgentic work Not measured Not in index
VPCTReasoning Not measured Not in index
BIG-Bench HardReasoning Not measured Not in index
AI2 Reasoning ChallengeKnowledge Not measured Not in index
HellaSwagGeneral Not measured Not in index
WinoGrandeGeneral Not measured Not in index
PIQAGeneral Not measured Not in index
CL-bench LifeGeneral Not measured Not in index
ALE-BenchCoding 1306.1 Not in index
Vending-Bench 2Agentic work Not measured Not in index
Epoch Capabilities IndexIntelligence 154.5 Not in index
LMArena TextGeneral Not measured Not in index
LMArena Text: codingCoding Not measured Not in index
LMArena Text: hard promptsReasoning Not measured Not in index
LMArena Text: mathMath Not measured Not in index
LMArena Text: instruction followingGeneral Not measured Not in index
LMArena Text: creative writingGeneral Not measured Not in index
LMArena VisionGeneral Not measured Not in index
LMArena Text: EnglishGeneral Not measured Not in index
LMArena Text: non-EnglishGeneral Not measured Not in index
LMArena Text: ChineseGeneral Not measured Not in index
LMArena Text: GermanGeneral Not measured Not in index
LMArena Text: JapaneseGeneral Not measured Not in index
LMArena Text: KoreanGeneral Not measured Not in index
LMArena Text: FrenchGeneral Not measured Not in index
LMArena Text: SpanishGeneral Not measured Not in index
LMArena Text: RussianGeneral Not measured Not in index
LMArena Text: PolishGeneral Not measured Not in index
LMArena Text: multi-turnGeneral Not measured Not in index
LMArena Text: longer queriesGeneral Not measured Not in index
LMArena Text: expertReasoning Not measured Not in index
LMArena Text: hard prompts in EnglishReasoning Not measured Not in index
LMArena Text: software and ITCoding Not measured Not in index
LMArena Text: mathematical workMath Not measured Not in index
LMArena Text: scienceKnowledge Not measured Not in index
LMArena Text: medicine and healthcareKnowledge Not measured Not in index
LMArena Text: legal and governmentKnowledge Not measured Not in index
LMArena Text: business and financeKnowledge Not measured Not in index
LMArena Text: writing and languageGeneral Not measured Not in index
LMArena Text: entertainment and mediaGeneral Not measured Not in index
LMArena WebDev: ReactCoding Not measured Not in index
LMArena WebDev: HTMLCoding Not measured Not in index
LMArena WebDev: from an imageCoding Not measured Not in index
LMArena Vision: EnglishGeneral Not measured Not in index
LMArena Vision: ChineseGeneral Not measured Not in index
LMArena Vision: reading textGeneral Not measured Not in index
LMArena Vision: diagramsReasoning Not measured Not in index
LMArena Vision: homeworkReasoning Not measured Not in index
LMArena Vision: humorGeneral Not measured Not in index
LMArena Vision: captioningGeneral Not measured Not in index
LMArena Vision: recognizing thingsGeneral Not measured Not in index
LMArena Vision: creative writingGeneral Not measured Not in index
LMArena SearchAgentic work Not measured Not in index
LMArena DocumentGeneral Not measured Not in index
LMArena Text to ImageImage generation Not measured Not in index
LMArena Image EditImage generation Not measured Not in index

What it costs

A list price says what a token costs. The cost per solved task says what a working answer costs, which is the number that decides.

Output price against the market

DeepSeek V4 Flash 0731 pricing
$0.0112Dashed line: median $1.80, log scale$600.00
$1.32 per million output tokens is cheaper than 54% of the 344 paid models in the catalog.

Cost per solved task

How it is computed
$0.01one attempt, Vals AI 88.8%tasks solved $0.01per solved task

Nearly as good as DeepSeek V4 Flash 0731, for less

What the boards say about its runs

Beside a result, many boards publish what the run cost, how long it took, the tokens it spent or the votes behind a rating. Each figure as its board printed it, one board per row.

What each board publishes about the runs behind DeepSeek: DeepSeek V4 Flash 0731's results
BoardResultWhat the run costAlso published
SWE-bench Verified (Vals AI) 88.8% $0.01 per test Duration, as printed 3m 22s
Terminal-Bench 4 (Vals AI) 18.7% $0.77 per test Duration, as printed 1h 46m
Vibe Code Bench (Vals AI) 74.7% $0.91 per test Duration, as printed 37m 22s
Code migration (Vals AI) 38.6% $3.61 per test Duration, as printed 2h 08m
ProgramBench (Vals AI) 0.0% $1.29 per test Duration, as printed 5h 39m
IOI (Vals AI) 32.7% $0.37 per test Duration, as printed 27m 43s
Terminal-Bench 2.1 (Vals AI) 67.0% $0.02 per test Duration, as printed 11m 23s
SkillsBench (Vals AI) 50.7% $0.13 per test Duration, as printed 6m 52s
CyberBench (Vals AI) 72.1% $0.19 per test Duration, as printed 15m 28s
Finance Agent (Vals AI) 49.5% $0.28 per test Duration, as printed 8m 10s
Tax Agent Bench (Vals AI) 28.1% $0.16 per test Duration, as printed 5m 37s
Legal Research Bench (Vals AI) 30.3% $0.28 per test Duration, as printed 21m 07s
22 more boards
What each board publishes about the runs behind DeepSeek: DeepSeek V4 Flash 0731's results, continued
Excel Modeling Benchmark (Vals AI) 57.0% $0.38 per test Duration, as printed 26m 14s
BioMysteryBench (Vals AI) 64.4% $0.04 per test Duration, as printed 27m 03s
Terminal-Bench-Science (Vals AI) 4.3% $1.10 per test Duration, as printed 1h 34m
WeirdML 63.0% $0.0286 per run Median lines of code 274
ProofBench 56.0% $0.0366 per test Time per proof 15m 34s
ALE-Bench 1306.1 $0.0195 per problem Tokens per problem 71,432
GPQA Diamond 89.9% Not published Latency, as printed 1m 20s
MMLU Pro 86.2% Not published Latency, as printed 17 s
Design Arena: websites 1238 Elo Not published Battles 6,610
Design Arena: UI components 1236 Elo Not published Battles 496
Design Arena: game dev 1208 Elo Not published Battles 1,761
Design Arena: data viz 1180 Elo Not published Battles 401
Design Arena: 3D 1209 Elo Not published Battles 1,232
Design Arena: all code categories 1230 Elo Not published Battles 10,439
Design Arena: SVG 1184 Elo Not published Battles 703
Design Arena: ASCII art 1091 Elo Not published Battles 105
LiveCodeBench (Vals AI) 87.3% Not published Latency, as printed 2m 07s
LegalBench (Vals AI) 77.7% Not published Latency, as printed 4.0 s
CorpFin (Vals AI) 61.9% Not published Latency, as printed 16 s
TaxEval (Vals AI) 70.7% Not published Latency, as printed 1m 12s
MedCode (Vals AI) 41.4% Not published Latency, as printed 2m 07s
MedScribe (Vals AI) 80.4% Not published Latency, as printed 1m 18s

On these lists

No comparison page of its own yet: one needs a coding index on both sides, and DeepSeek V4 Flash 0731 has none. Compare DeepSeek V4 Flash 0731 with any model