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Model comparison

DeepSeek V4 Flash (Max) vs DeepSeek V4 Pro (Max)

Data verified

Head-to-head evidence from 45 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

Sibling matchup inside the DeepSeek V4 family.

N/A
No comparison
N/A
0 category wins4 category wins

Evidence parity. DeepSeek V4 Flash (Max) and DeepSeek V4 Pro (Max) share 45 comparable benchmark results. 4 of 8 categories are comparable. 0 results are unique to DeepSeek V4 Flash (Max); 3 to DeepSeek V4 Pro (Max).

Updated July 23, 2026
Shared results
45
DeepSeek V4 Flash (Max) only
0
DeepSeek V4 Pro (Max) only
3
Comparable categories
4 / 8

DeepSeek V4 Flash (Max) makes more sense if you want the cheaper token bill, while DeepSeek V4 Pro (Max) is the cleaner fit if agentic is the priority.

Confidence note. This is a partial-evidence comparison with 45 shared benchmark results across 7 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 (Max) and DeepSeek V4 Pro (Max) sit in the same DeepSeek V4 family. This page is less about two unrelated model lineages and more about how the siblings trade off on benchmark shape, token costs, and practical limits like context window.

DeepSeek V4 Flash (Max) and DeepSeek V4 Pro (Max) finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.

DeepSeek V4 Pro (Max) is also the more expensive model on tokens at $0.43 input / $0.87 output per 1M tokens, versus $0.14 input / $0.28 output per 1M tokens for DeepSeek V4 Flash (Max). That is roughly 3.1x on output cost alone.

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 (Max) and DeepSeek V4 Pro (Max)
CategoryDeepSeek V4 Flash (Max)ΔDeepSeek V4 Pro (Max)
AgenticDeepSeek V4 Flash (Max)63.8Margin→ 10.7DeepSeek V4 Pro (Max)74.5
KnowledgeDeepSeek V4 Flash (Max)55.3Margin→ 4.8DeepSeek V4 Pro (Max)60.1
CodingDeepSeek V4 Flash (Max)68.8Margin→ 2.1DeepSeek V4 Pro (Max)70.9
MathDeepSeek V4 Flash (Max)94.8Margin→ 0.4DeepSeek V4 Pro (Max)95.2

Decisive benchmark drivers

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

More
A · DeepSeek V4 Flash (Max)B · DeepSeek V4 Pro (Max)

  1. SimpleQA

    Knowledge
    Source ↗
    A 34.1%B 57.9%
    Winner: DeepSeek V4 Pro (Max)Δ 23.8
    SimpleQA: DeepSeek V4 Flash (Max) scored 34.1%; DeepSeek V4 Pro (Max) scored 57.9%. DeepSeek V4 Pro (Max) wins this benchmark.

  2. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 56.9%B 67.9%
    Winner: DeepSeek V4 Pro (Max)Δ 11
    Terminal-Bench 2.0: DeepSeek V4 Flash (Max) scored 56.9%; DeepSeek V4 Pro (Max) scored 67.9%. DeepSeek V4 Pro (Max) wins this benchmark.

  3. BrowseComp

    Agentic
    Source ↗
    A 73.2%B 83.4%
    Winner: DeepSeek V4 Pro (Max)Δ 10.2
    BrowseComp: DeepSeek V4 Flash (Max) scored 73.2%; DeepSeek V4 Pro (Max) scored 83.4%. DeepSeek V4 Pro (Max) wins this benchmark.

  4. HLE

    Knowledge
    Source ↗
    A 34.8%B 37.7%
    Winner: DeepSeek V4 Pro (Max)Δ 2.9
    HLE: DeepSeek V4 Flash (Max) scored 34.8%; DeepSeek V4 Pro (Max) scored 37.7%. DeepSeek V4 Pro (Max) wins this benchmark.

  5. SWE-bench Pro

    Coding
    Source ↗
    A 52.6%B 55.4%
    Winner: DeepSeek V4 Pro (Max)Δ 2.8
    SWE-bench Pro: DeepSeek V4 Flash (Max) scored 52.6%; DeepSeek V4 Pro (Max) scored 55.4%. DeepSeek V4 Pro (Max) wins this benchmark.

Operational comparison

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

MetricDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Comparison
Input / output priceUSD per 1M tokensDeepSeek V4 Flash (Max)$0.14 input / $0.28 outputDeepSeek V4 Pro (Max)$0.435 input / $0.87 outputDeepSeek V4 Flash (Max) has the lower combined listed price.
Generation speedtokens per secondDeepSeek V4 Flash (Max)Not availableDeepSeek V4 Pro (Max)Not availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenDeepSeek V4 Flash (Max)Not availableDeepSeek V4 Pro (Max)Not availableA complete latency comparison is not available.
Context windowmaximum listed tokensDeepSeek V4 Flash (Max)1MDeepSeek V4 Pro (Max)1MListed context windows are equal.

Benchmark Deep Dive

AgenticDeepSeek V4 Pro (Max) wins
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
Terminal-Bench 2.0Source 56.9%67.9%DeepSeek V4 Pro (Max) leads
BrowseCompSource 73.2%83.4%DeepSeek V4 Pro (Max) leads
HLE w/ toolsSource 45.1%48.2%DeepSeek V4 Pro (Max) leads
MCP AtlasSource 69%73.6%DeepSeek V4 Pro (Max) leads
GDPval-AASource 11891307DeepSeek V4 Pro (Max) leads
ToolathlonSource 47.8%51.8%DeepSeek V4 Pro (Max) leads
AA Agentic IndexSource 31.1%36.4%DeepSeek V4 Pro (Max) leads
τ²-bench resultsSource 95%96.2%DeepSeek V4 Pro (Max) leads
GDPval-AASource 34.4%40.4%DeepSeek V4 Pro (Max) leads
AA BriefcaseSource 831932DeepSeek V4 Pro (Max) leads
AA EnterpriseOps-GymSource 39.6%40.4%DeepSeek V4 Pro (Max) leads
AA Harvey LABSource 81.3%84.4%DeepSeek V4 Pro (Max) leads
AA ITBenchSource 31.5%38.3%DeepSeek V4 Pro (Max) leads
AA Tau3 BankingSource 22.9%25.8%DeepSeek V4 Pro (Max) leads
terminalBenchHardSource 35.6%46.2%DeepSeek V4 Pro (Max) leads
APEX-Agents-AASource —24.3%Not comparable
aaTerminalBench21Source —64%Not comparable
CodingDeepSeek V4 Pro (Max) wins
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
CodeforcesSource 3052.03206.0DeepSeek V4 Pro (Max) leads
SWE-bench VerifiedSource 79%80.6%DeepSeek V4 Pro (Max) leads
SWE-bench ProSource 52.6%55.4%DeepSeek V4 Pro (Max) leads
SWE MultilingualSource 73.3%76.2%DeepSeek V4 Pro (Max) leads
Terminal-Bench 2.0Source 56.9%67.9%DeepSeek V4 Pro (Max) leads
AA Coding IndexSource 56.2%59.4%DeepSeek V4 Pro (Max) leads
AA-SciCodeSource 44.9%50.0%DeepSeek V4 Pro (Max) leads
Vibe Code BenchSource —49.93%Not comparable
Reasoning
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
MRCR 1MSource 78.7%83.5%DeepSeek V4 Pro (Max) leads
CorpusQA 1MSource 60.5%62.0%DeepSeek V4 Pro (Max) leads
AA-LCRSource 63.0%66.3%DeepSeek V4 Pro (Max) leads
CritPtSource 7.1%12.9%DeepSeek V4 Pro (Max) leads
KnowledgeDeepSeek V4 Pro (Max) wins
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
MMLU-ProSource 86.2%87.5%DeepSeek V4 Pro (Max) leads
SimpleQASource 34.1%57.9%DeepSeek V4 Pro (Max) leads
Chinese-SimpleQASource 78.9%84.4%DeepSeek V4 Pro (Max) leads
GPQASource 88.1%90.1%DeepSeek V4 Pro (Max) leads
GPQA-DSource 88.1%90.1%DeepSeek V4 Pro (Max) leads
HLESource 34.8%37.7%DeepSeek V4 Pro (Max) leads
Artificial Analysis Intelligence IndexSource 40.3%44.3%DeepSeek V4 Pro (Max) leads
AA-GPQA DiamondSource 89.4%88.8%DeepSeek V4 Flash (Max) leads
AA-HLESource 32.1%35.9%DeepSeek V4 Pro (Max) leads
AA-Omniscience IndexSource -22.9%-10.0%DeepSeek V4 Pro (Max) leads
AA-Omniscience AccuracySource 37.2%43.3%DeepSeek V4 Pro (Max) leads
AA-Omniscience Hallucination RateSource 95.8%94.0%DeepSeek V4 Pro (Max) leads
AA Openness IndexSource 50.0%50.0%Tie
MathDeepSeek V4 Pro (Max) wins
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
HMMT Feb 2026Source 94.8%95.2%DeepSeek V4 Pro (Max) leads
IMOAnswerBenchSource 88.4%89.8%DeepSeek V4 Pro (Max) leads
ApexSource 33.0%38.3%DeepSeek V4 Pro (Max) leads
Apex ShortlistSource 85.7%90.2%DeepSeek V4 Pro (Max) leads
Multimodal
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
Design Arena WebsiteSource 12381264DeepSeek V4 Pro (Max) leads
Inst. Following
BenchmarkDeepSeek V4 Flash (Max)DeepSeek V4 Pro (Max)Result
AA-IFBenchSource 79.2%76.5%DeepSeek V4 Flash (Max) leads
Frequently Asked Questions (5)

Which is better, DeepSeek V4 Flash (Max) or DeepSeek V4 Pro (Max)?

DeepSeek V4 Flash (Max) and DeepSeek V4 Pro (Max) are sibling variants in the DeepSeek V4 family, so the right pick depends on whether you value the better benchmark line, cheaper tokens, or the larger context window. They are tied on the BenchAlign leaderboard on the current data.

Which is better for knowledge tasks, DeepSeek V4 Flash (Max) or DeepSeek V4 Pro (Max)?

DeepSeek V4 Pro (Max) has the edge for knowledge tasks in this comparison, averaging 60.1 versus 55.3. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V4 Flash (Max) or DeepSeek V4 Pro (Max)?

DeepSeek V4 Pro (Max) has the edge for coding in this comparison, averaging 70.9 versus 68.8. Inside this category, Codeforces is the benchmark that creates the most daylight between them.

Which is better for math, DeepSeek V4 Flash (Max) or DeepSeek V4 Pro (Max)?

DeepSeek V4 Pro (Max) has the edge for math in this comparison, averaging 95.2 versus 94.8. Inside this category, Apex is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeek V4 Flash (Max) or DeepSeek V4 Pro (Max)?

DeepSeek V4 Pro (Max) has the edge for agentic tasks in this comparison, averaging 74.5 versus 63.8. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.

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