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Model comparison

DeepSeek V4 Flash vs Qwen3.6-27B

Data verified

Head-to-head evidence from 11 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

58.88/100
Margin
5.1pts
← winning
53.82/100
0 category wins4 category wins

Public leaderboard positions: DeepSeek V4 Flash #61 (Estimated); Qwen3.6-27B #93 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. DeepSeek V4 Flash and Qwen3.6-27B share 11 comparable benchmark results. 4 of 8 categories are comparable. 11 results are unique to DeepSeek V4 Flash; 43 to Qwen3.6-27B.

Updated July 23, 2026
Shared results
11
DeepSeek V4 Flash only
11
Qwen3.6-27B only
43
Comparable categories
4 / 8

Pick DeepSeek V4 Flash if you want the stronger benchmark profile. Qwen3.6-27B only becomes the better choice if mathematics is the priority or you want the cheaper token bill.

Confidence note. This is a partial-evidence comparison with 11 shared benchmark results across 4 evidence categories; 4 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

DeepSeek V4 Flash is clearly ahead on the BenchAlign aggregate, 58.88 to 53.82. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

DeepSeek V4 Flash is also the more expensive model on tokens at $0.14 input / $0.28 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Qwen3.6-27B. That is roughly Infinityx on output cost alone. Qwen3.6-27B is the reasoning model in the pair, while DeepSeek V4 Flash is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. DeepSeek V4 Flash gives you the larger context window at 1M, compared with 262K for Qwen3.6-27B.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for DeepSeek V4 Flash and Qwen3.6-27B
CategoryDeepSeek V4 FlashΔQwen3.6-27B
MathDeepSeek V4 Flash40.8Margin 48.4Qwen3.6-27B89.2
KnowledgeDeepSeek V4 Flash38.8Margin 14.5Qwen3.6-27B53.3
CodingDeepSeek V4 Flash64.2Margin 13.3Qwen3.6-27B77.5
AgenticDeepSeek V4 Flash49.1Margin 10.2Qwen3.6-27B59.3
MultimodalDeepSeek V4 FlashNot measuredMarginNo overlapQwen3.6-27B76.7

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · DeepSeek V4 FlashB · Qwen3.6-27B
  1. HMMT Feb 2026

    Math
    Source ↗
    A 40.8%B 84.3%
    Winner: Qwen3.6-27BΔ 43.5
    HMMT Feb 2026: DeepSeek V4 Flash scored 40.8%; Qwen3.6-27B scored 84.3%. Qwen3.6-27B wins this benchmark.
  2. GPQA

    Knowledge
    Source ↗
    A 71.2%B 87.8%
    Winner: Qwen3.6-27BΔ 16.6
    GPQA: DeepSeek V4 Flash scored 71.2%; Qwen3.6-27B scored 87.8%. Qwen3.6-27B wins this benchmark.
  3. HLE

    Knowledge
    Source ↗
    A 8.1%B 24%
    Winner: Qwen3.6-27BΔ 15.9
    HLE: DeepSeek V4 Flash scored 8.1%; Qwen3.6-27B scored 24%. Qwen3.6-27B wins this benchmark.
  4. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 49.1%B 59.3%
    Winner: Qwen3.6-27BΔ 10.2
    Terminal-Bench 2.0: DeepSeek V4 Flash scored 49.1%; Qwen3.6-27B scored 59.3%. Qwen3.6-27B wins this benchmark.
  5. SWE-bench Pro

    Coding
    Source ↗
    A 49.1%B 53.5%
    Winner: Qwen3.6-27BΔ 4.4
    SWE-bench Pro: DeepSeek V4 Flash scored 49.1%; Qwen3.6-27B scored 53.5%. Qwen3.6-27B wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricDeepSeek V4 FlashQwen3.6-27BComparison
Input / output priceUSD per 1M tokensDeepSeek V4 Flash$0.14 input / $0.28 outputQwen3.6-27B$0 input / $0 outputQwen3.6-27B has the lower combined listed price.
Generation speedtokens per secondDeepSeek V4 FlashNot availableQwen3.6-27BNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenDeepSeek V4 FlashNot availableQwen3.6-27BNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensDeepSeek V4 Flash1MQwen3.6-27B262KDeepSeek V4 Flash lists the larger context window.

Benchmark Deep Dive

AgenticQwen3.6-27B wins
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
Terminal-Bench 2.0Source 49.1%59.3%Qwen3.6-27B leads
MCP AtlasSource 64%Not comparable
ToolathlonSource 40.7%Not comparable
Claw-EvalSource 57.8%72.4%Qwen3.6-27B leads
Gert LabsSource 54.35%54.84%Qwen3.6-27B leads
QwenClawBenchSource 53.4%Not comparable
QwenWebBenchSource 1487Not comparable
AndroidWorldSource 70.3%Not comparable
AA Agentic IndexSource 27.0%Not comparable
τ²-bench resultsSource 94.2%Not comparable
GDPval-AASource 32.0%Not comparable
GDPval-AASource 1140Not comparable
CodingQwen3.6-27B wins
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
SWE-bench VerifiedSource 73.7%77.2%Qwen3.6-27B leads
SWE-bench ProSource 49.1%53.5%Qwen3.6-27B leads
SWE MultilingualSource 69.7%71.3%Qwen3.6-27B leads
Terminal-Bench 2.0Source 49.1%59.3%Qwen3.6-27B leads
LiveCodeBenchSource 83.9%Not comparable
NL2RepoSource 36.2%Not comparable
AA Coding IndexSource 53.7%Not comparable
AA-SciCodeSource 39.8%Not comparable
Reasoning
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
MRCR 1MSource 37.5%Not comparable
CorpusQA 1MSource 15.5%Not comparable
AA-LCRSource 68.7%Not comparable
CritPtSource 1.1%Not comparable
KnowledgeQwen3.6-27B wins
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
MMLU-ProSource 83%86.2%Qwen3.6-27B leads
SimpleQASource 23.1%Not comparable
Chinese-SimpleQASource 71.5%Not comparable
GPQASource 71.2%87.8%Qwen3.6-27B leads
GPQA-DSource 71.2%Not comparable
HLESource 8.1%24%Qwen3.6-27B leads
MMLU-ReduxSource 93.5%Not comparable
SuperGPQASource 66%Not comparable
C-EvalSource 91.4%Not comparable
Artificial Analysis Intelligence IndexSource 37.0%Not comparable
AA-GPQA DiamondSource 84.2%Not comparable
AA-HLESource 21.6%Not comparable
AA-Omniscience IndexSource -19.8%Not comparable
AA-Omniscience AccuracySource 19.2%Not comparable
AA-Omniscience Hallucination RateSource 48.3%Not comparable
MathQwen3.6-27B wins
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
HMMT Feb 2026Source 40.8%84.3%Qwen3.6-27B leads
IMOAnswerBenchSource 41.9%Not comparable
ApexSource 1.0%Not comparable
Apex ShortlistSource 9.3%Not comparable
HMMT Feb 2025Source 93.8%Not comparable
HMMT Nov 2025Source 90.7%Not comparable
MMAnswerBenchSource 80.8%Not comparable
AIME26Source 94.1%Not comparable
Multimodal
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
Design Arena WebsiteSource 1238Not comparable
MMMUSource 82.9%Not comparable
MMMU-ProSource 75.8%Not comparable
RealWorldQASource 84.1%Not comparable
DynaMathSource 85.6%Not comparable
MStarSource 81.4%Not comparable
SimpleVQASource 56.1%Not comparable
CharXivSource 78.4%Not comparable
CC-OCRSource 81.2%Not comparable
CountBenchSource 97.8%Not comparable
RefCOCO (avg)Source 92.5%Not comparable
ERQASource 62.5%Not comparable
Video-MME (with subtitle)Source 87.7%Not comparable
VideoMMMUSource 84.4%Not comparable
MLVU (M-Avg)Source 86.6%Not comparable
V*Source 94.7%Not comparable
AA-MMMU-ProSource 74.6%Not comparable
Inst. Following
BenchmarkDeepSeek V4 FlashQwen3.6-27BResult
AA-IFBenchSource 67.6%Not comparable
Frequently Asked Questions (5)

Which is better, DeepSeek V4 Flash or Qwen3.6-27B?

DeepSeek V4 Flash is ahead on BenchLM's BenchAlign leaderboard, 58.88 to 53.82. The biggest single separator in this matchup is HMMT Feb 2026, where the scores are 40.8% and 84.3%.

Which is better for knowledge tasks, DeepSeek V4 Flash or Qwen3.6-27B?

Qwen3.6-27B has the edge for knowledge tasks in this comparison, averaging 53.3 versus 38.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V4 Flash or Qwen3.6-27B?

Qwen3.6-27B has the edge for coding in this comparison, averaging 77.5 versus 64.2. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for math, DeepSeek V4 Flash or Qwen3.6-27B?

Qwen3.6-27B has the edge for math in this comparison, averaging 89.2 versus 40.8. Inside this category, HMMT Feb 2026 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeek V4 Flash or Qwen3.6-27B?

Qwen3.6-27B has the edge for agentic tasks in this comparison, averaging 59.3 versus 49.1. Inside this category, Claw-Eval is the benchmark that creates the most daylight between them.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

DeepSeek V4 Flash
API / mo$315
Self-host / moNot listed
Break-even
Proprietary model — self-hosting not applicable.
Qwen3.6-27B
API / mo$0
Self-host / mo$429
Break-even
Model the full break-even

Related Comparisons

Last updated: July 23, 2026

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