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DeepSeek V3 0324 vs Qwen3.5 397B A17B

Updated October 21, 2026. 12 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

DeepSeek V3 0324DeepSeek
Coding
42.0
Overall
9.7
Output $/M
$1.14
0
Qwen3.5 397B A17BQwen
Coding
28.6
Overall
21.4
Output $/M
$2.34
12
vs boards won of 12 shared

Decision reading

Pick DeepSeek V3 0324 for coding: it scores 42.0 on the Vibe Coding Index against 28.6 for Qwen3.5 397B A17B.

Pick Qwen3.5 397B A17B when the context window is larger, 262K against 164K tokens, or when what matters is SciCode or Terminal-Bench Hard (Artificial Analysis run), where it leads.

Shared results
12
DeepSeek V3 0324 only
23
Qwen3.5 397B A17B only
53
Like-for-like categories
6 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
DeepSeek V3 0324 42.0 from 1 benchmark, Qwen3.5 397B A17B 28.6 from 1 benchmark.
Widest category
Math, 51.1 points apart on average over 1 shared benchmark.
Widest single gap
OTIS Mock AIME: DeepSeek V3 0324 37.8% against Qwen3.5 397B A17B 88.9%, 51.1 points apart on a 0 to 100 scale.
Output price
DeepSeek V3 0324 $1.14 against Qwen3.5 397B A17B $2.34 per million output tokens, 2.1x apart.
Context window
DeepSeek V3 0324 takes 164K tokens, Qwen3.5 397B A17B 262K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryDeepSeek V3 0324BarsQwen3.5 397B A17BTies
Coding02
Intelligence01
Agentic work01
Reasoning03
Math01
General04
All shared boards012
CodingLike-for-likeFour of these boards feed the Vibe Coding Index02
Coding benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
SWE-bench Verified42.0%Not measuredOnly DeepSeek V3 0324 measured
LMArena WebDevNot measured1400Only Qwen3.5 397B A17B measured
AA Coding Index21.2Not measuredOnly DeepSeek V3 0324 measured
LiveCodeBench (Vals AI)65.5%Not measuredOnly DeepSeek V3 0324 measured
LiveCodeBench (Artificial Analysis run)40.5%Not measuredOnly DeepSeek V3 0324 measured
SciCode39.0%44.8%Qwen3.5 397B A17B
Terminal-Bench Hard (Artificial Analysis run)15.2%40.9%Qwen3.5 397B A17B
WeirdML36.1%Not measuredOnly DeepSeek V3 0324 measured
ALE-BenchNot measured621.9Only Qwen3.5 397B A17B measured
LMArena Text: codingNot measured1464Only Qwen3.5 397B A17B measured
LMArena Text: software and ITNot measured1463Only Qwen3.5 397B A17B measured
LMArena WebDev: ReactNot measured1388Only Qwen3.5 397B A17B measured
LMArena WebDev: HTMLNot measured1410Only Qwen3.5 397B A17B measured
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
AA Intelligence Index9.721.4Qwen3.5 397B A17B
Epoch Capabilities IndexNot measured146.8Only Qwen3.5 397B A17B measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
AA Agentic Index0.8Not measuredOnly DeepSeek V3 0324 measured
τ²-Bench Telecom47.1%95.6%Qwen3.5 397B A17B
APEX-AgentsNot measured24.9%Only Qwen3.5 397B A17B measured
METR time horizons49.6%Not measuredOnly DeepSeek V3 0324 measured
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index03
Reasoning benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
GPQA Diamond61.6%Not measuredOnly DeepSeek V3 0324 measured
GPQA Diamond (Artificial Analysis run)65.5%89.3%Qwen3.5 397B A17B
Humanity's Last Exam (Artificial Analysis run)4.7%29.0%Qwen3.5 397B A17B
GPQA Diamond (Epoch AI run)67.6%86.4%Qwen3.5 397B A17B
SimpleBench27.2%Not measuredOnly DeepSeek V3 0324 measured
Mystery game puzzlesNot measured18.0%Only Qwen3.5 397B A17B measured
LMArena Text: hard promptsNot measured1448Only Qwen3.5 397B A17B measured
LMArena Text: expertNot measured1462Only Qwen3.5 397B A17B measured
LMArena Text: hard prompts in EnglishNot measured1450Only Qwen3.5 397B A17B measured
LMArena Vision: diagramsNot measured1277Only Qwen3.5 397B A17B measured
LMArena Vision: homeworkNot measured1292Only Qwen3.5 397B A17B measured
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index01
Math benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
AIME52.2%Not measuredOnly DeepSeek V3 0324 measured
MATH 500 (Vals AI)88.6%Not measuredOnly DeepSeek V3 0324 measured
MGSM (Vals AI)91.7%Not measuredOnly DeepSeek V3 0324 measured
AA Math Index41.0Not measuredOnly DeepSeek V3 0324 measured
AIME 2025 (Artificial Analysis run)41.0%Not measuredOnly DeepSeek V3 0324 measured
OTIS Mock AIME37.8%88.9%Qwen3.5 397B A17B
FrontierMath, tiers 1 to 3Not measured31.2%Only Qwen3.5 397B A17B measured
MATH level 575.5%Not measuredOnly DeepSeek V3 0324 measured
LMArena Text: mathNot measured1453Only Qwen3.5 397B A17B measured
LMArena Text: mathematical workNot measured1454Only Qwen3.5 397B A17B measured
Neither model has a result on the other 3 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index10 boards, none shared
Knowledge benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
MMLU Pro79.5%Not measuredOnly DeepSeek V3 0324 measured
LegalBench (Vals AI)77.7%Not measuredOnly DeepSeek V3 0324 measured
CorpFin (Vals AI)54.7%Not measuredOnly DeepSeek V3 0324 measured
TaxEval (Vals AI)71.1%Not measuredOnly DeepSeek V3 0324 measured
MedQA (Vals AI)82.0%Not measuredOnly DeepSeek V3 0324 measured
MMLU Pro (Artificial Analysis run)81.9%Not measuredOnly DeepSeek V3 0324 measured
LMArena Text: scienceNot measured1457Only Qwen3.5 397B A17B measured
LMArena Text: medicine and healthcareNot measured1455Only Qwen3.5 397B A17B measured
LMArena Text: legal and governmentNot measured1441Only Qwen3.5 397B A17B measured
LMArena Text: business and financeNot measured1435Only Qwen3.5 397B A17B measured
Neither model has a result on the other 7 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Web design benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
Design Arena: websitesNot measured1191Only Qwen3.5 397B A17B measured
Design Arena: UI componentsNot measured1163Only Qwen3.5 397B A17B measured
Design Arena: game devNot measured1141Only Qwen3.5 397B A17B measured
Design Arena: data vizNot measured1175Only Qwen3.5 397B A17B measured
Design Arena: 3DNot measured1161Only Qwen3.5 397B A17B measured
Design Arena: all code categoriesNot measured1180Only Qwen3.5 397B A17B measured
Design Arena: SVGNot measured1139Only Qwen3.5 397B A17B measured
Neither model has a result on the other 2 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index04
General benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
IFBench41.0%78.8%Qwen3.5 397B A17B
Long context reasoning (AA-LCR)40.7%77.3%Qwen3.5 397B A17B
DTBench64.8%87.5%Qwen3.5 397B A17B
LMCA15.5%37.9%Qwen3.5 397B A17B
Fiction.LiveBench50.0%Not measuredOnly DeepSeek V3 0324 measured
Creative writing (Lech Mazur)77.0%Not measuredOnly DeepSeek V3 0324 measured
LMArena TextNot measured1437Only Qwen3.5 397B A17B measured
LMArena Text: instruction followingNot measured1424Only Qwen3.5 397B A17B measured
LMArena Text: creative writingNot measured1402Only Qwen3.5 397B A17B measured
LMArena VisionNot measured1262Only Qwen3.5 397B A17B measured
LMArena Text: EnglishNot measured1443Only Qwen3.5 397B A17B measured
LMArena Text: non-EnglishNot measured1430Only Qwen3.5 397B A17B measured
LMArena Text: ChineseNot measured1498Only Qwen3.5 397B A17B measured
LMArena Text: GermanNot measured1445Only Qwen3.5 397B A17B measured
LMArena Text: JapaneseNot measured1429Only Qwen3.5 397B A17B measured
LMArena Text: KoreanNot measured1384Only Qwen3.5 397B A17B measured
LMArena Text: FrenchNot measured1462Only Qwen3.5 397B A17B measured
LMArena Text: SpanishNot measured1441Only Qwen3.5 397B A17B measured
LMArena Text: RussianNot measured1430Only Qwen3.5 397B A17B measured
LMArena Text: PolishNot measured1447Only Qwen3.5 397B A17B measured
LMArena Text: multi-turnNot measured1446Only Qwen3.5 397B A17B measured
LMArena Text: longer queriesNot measured1441Only Qwen3.5 397B A17B measured
LMArena Text: writing and languageNot measured1415Only Qwen3.5 397B A17B measured
LMArena Text: entertainment and mediaNot measured1399Only Qwen3.5 397B A17B measured
LMArena Vision: EnglishNot measured1268Only Qwen3.5 397B A17B measured
LMArena Vision: ChineseNot measured1314Only Qwen3.5 397B A17B measured
LMArena Vision: reading textNot measured1271Only Qwen3.5 397B A17B measured
LMArena Vision: humorNot measured1262Only Qwen3.5 397B A17B measured
LMArena Vision: captioningNot measured1230Only Qwen3.5 397B A17B measured
LMArena Vision: recognizing thingsNot measured1265Only Qwen3.5 397B A17B measured
LMArena Vision: creative writingNot measured1260Only Qwen3.5 397B A17B measured
Neither model has a result on the other 15 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for DeepSeek V3 0324 and Qwen3.5 397B A17B
BenchmarkDeepSeek V3 0324Qwen3.5 397B A17BLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

DeepSeek V3 0324$0.0009Fits in one request
Qwen3.5 397B A17B$0.0016Fits in one request

DeepSeek V3 0324 costs less

Repository review

50K input + 3K output tokens

DeepSeek V3 0324$0.018Fits in one request
Qwen3.5 397B A17B$0.027Fits in one request

DeepSeek V3 0324 costs less

Agent loop

200K input + 10K output tokens

DeepSeek V3 0324$0.069Exceeds the context window
Qwen3.5 397B A17B$0.101Fits in one request

DeepSeek V3 0324 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of DeepSeek V3 0324 and Qwen3.5 397B A17B
SpecificationDeepSeek V3 0324Qwen3.5 397B A17B
MakerDeepSeekQwen
WeightsOpen weightsOpen weights
ReleasedMarch 24, 2025February 16, 2026
Context window164K262K
Input $/Mtok$0.29$0.39
Output $/Mtok$1.14$2.34
Coding index42.028.6
Independent measurements behind it11
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is DeepSeek V3 0324 better than Qwen3.5 397B A17B for coding?

Pick DeepSeek V3 0324 for coding: it scores 42.0 on the Vibe Coding Index against 28.6 for Qwen3.5 397B A17B. Pick Qwen3.5 397B A17B when the context window is larger, 262K against 164K tokens, or when what matters is SciCode or Terminal-Bench Hard (Artificial Analysis run), where it leads.

Which is cheaper, DeepSeek V3 0324 or Qwen3.5 397B A17B?

DeepSeek V3 0324 costs $0.29 per million input tokens and $1.14 per million output tokens; Qwen3.5 397B A17B costs $0.39 and $2.34. Cost per solved task is known for neither of them.

Which has the bigger context window, DeepSeek V3 0324 or Qwen3.5 397B A17B?

Qwen3.5 397B A17B, with 262K tokens against 164K.

How many benchmarks is the DeepSeek V3 0324 vs Qwen3.5 397B A17B comparison based on?

12 benchmarks have a result for both models as of October 21, 2026. DeepSeek V3 0324's coding index rests on 1 independent benchmark and Qwen3.5 397B A17B's on 1. Where only one model has a result, the page says so instead of naming a winner.

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