Skip to main content

Model comparison

DeepSeek V3 vs DeepSeek V4 Pro (High)

Data verified

Head-to-head evidence from 19 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

DeepSeek
44.97/100
Margin
10.5pts
winning →
55.47/100
1 category wins2 category wins

Public leaderboard positions: DeepSeek V3 #147 (Supported); DeepSeek V4 Pro (High) #81 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. DeepSeek V3 and DeepSeek V4 Pro (High) share 19 comparable benchmark results. 3 of 8 categories are comparable. 3 results are unique to DeepSeek V3; 19 to DeepSeek V4 Pro (High).

Updated July 23, 2026
Shared results
19
DeepSeek V3 only
3
DeepSeek V4 Pro (High) only
19
Comparable categories
3 / 8

Pick DeepSeek V4 Pro (High) if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if knowledge is the priority or you would rather avoid the extra latency and token burn of a reasoning model.

Confidence note. This is a partial-evidence comparison with 19 shared benchmark results across 6 evidence categories; 3 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 Pro (High) is clearly ahead on the BenchAlign aggregate, 55.47 to 44.97. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

DeepSeek V4 Pro (High)'s sharpest advantage is in mathematics, where it averages 94 against 1.7. The single biggest benchmark swing on the page is SWE-bench Verified, 42% to 79.4%. DeepSeek V3 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

DeepSeek V3 is also the more expensive model on tokens at $0.27 input / $1.10 output per 1M tokens, versus $0.43 input / $0.87 output per 1M tokens for DeepSeek V4 Pro (High). DeepSeek V4 Pro (High) is the reasoning model in the pair, while DeepSeek V3 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 Pro (High) gives you the larger context window at 1M, compared with 128K for DeepSeek V3.

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 V3 and DeepSeek V4 Pro (High)
CategoryDeepSeek V3ΔDeepSeek V4 Pro (High)
MathDeepSeek V31.7Margin 92.3DeepSeek V4 Pro (High)94.0
CodingDeepSeek V338.9Margin 30.9DeepSeek V4 Pro (High)69.8
KnowledgeDeepSeek V372.7Margin 15.7DeepSeek V4 Pro (High)57.0
AgenticDeepSeek V3Not measuredMarginNo overlapDeepSeek V4 Pro (High)70.6
Inst. FollowingDeepSeek V386.1MarginNo overlapDeepSeek V4 Pro (High)Not measured

Decisive benchmark drivers

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

More
A · DeepSeek V3B · DeepSeek V4 Pro (High)
  1. SWE-bench Verified

    Coding
    Source ↗
    A 42%B 79.4%
    Winner: DeepSeek V4 Pro (High)Δ 37.4
    SWE-bench Verified: DeepSeek V3 scored 42%; DeepSeek V4 Pro (High) scored 79.4%. DeepSeek V4 Pro (High) wins this benchmark.
  2. GPQA

    Knowledge
    Source ↗
    A 59.1%B 89.1%
    Winner: DeepSeek V4 Pro (High)Δ 30
    GPQA: DeepSeek V3 scored 59.1%; DeepSeek V4 Pro (High) scored 89.1%. DeepSeek V4 Pro (High) wins this benchmark.
  3. MMLU-Pro

    Knowledge
    Source ↗
    A 75.9%B 87.1%
    Winner: DeepSeek V4 Pro (High)Δ 11.2
    MMLU-Pro: DeepSeek V3 scored 75.9%; DeepSeek V4 Pro (High) scored 87.1%. DeepSeek V4 Pro (High) wins this benchmark.

Operational comparison

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

MetricDeepSeek V3DeepSeek V4 Pro (High)Comparison
Input / output priceUSD per 1M tokensDeepSeek V3$0.27 input / $1.1 outputDeepSeek V4 Pro (High)$0.435 input / $0.87 outputDeepSeek V4 Pro (High) has the lower combined listed price.
Generation speedtokens per secondDeepSeek V3Not availableDeepSeek V4 Pro (High)Not availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenDeepSeek V3Not availableDeepSeek V4 Pro (High)Not availableA complete latency comparison is not available.
Context windowmaximum listed tokensDeepSeek V3128KDeepSeek V4 Pro (High)1MDeepSeek V4 Pro (High) lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
AA Agentic IndexSource 1.6%34.4%DeepSeek V4 Pro (High) leads
τ²-bench resultsSource 22.8%94.2%DeepSeek V4 Pro (High) leads
GDPval-AASource 0.0%39.9%DeepSeek V4 Pro (High) leads
GDPval-AASource 2171299DeepSeek V4 Pro (High) leads
Terminal-Bench 2.0Source 63.3%Not comparable
BrowseCompSource 80.4%Not comparable
HLE w/ toolsSource 44.7%Not comparable
MCP AtlasSource 74.2%Not comparable
ToolathlonSource 49%Not comparable
CodingDeepSeek V4 Pro (High) wins
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
LiveCodeBenchSource 37.6%Not comparable
SWE-bench VerifiedSource 42%79.4%DeepSeek V4 Pro (High) leads
AA Coding IndexSource 23.0%58.7%DeepSeek V4 Pro (High) leads
AA-SciCodeSource 35.4%46.4%DeepSeek V4 Pro (High) leads
CodeforcesSource 2919.0Not comparable
SWE-bench ProSource 54.4%Not comparable
SWE MultilingualSource 74.1%Not comparable
Terminal-Bench 2.0Source 63.3%Not comparable
Reasoning
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
AA-LCRSource 29.0%65.0%DeepSeek V4 Pro (High) leads
CritPtSource 0.0%10.0%DeepSeek V4 Pro (High) leads
MRCR 1MSource 83.3%Not comparable
CorpusQA 1MSource 56.5%Not comparable
KnowledgeDeepSeek V3 wins
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
GPQASource 59.1%89.1%DeepSeek V4 Pro (High) leads
MMLU-ProSource 75.9%87.1%DeepSeek V4 Pro (High) leads
Artificial Analysis Intelligence IndexSource 14.2%43.1%DeepSeek V4 Pro (High) leads
AA-GPQA DiamondSource 55.7%90.5%DeepSeek V4 Pro (High) leads
AA-HLESource 3.6%33.5%DeepSeek V4 Pro (High) leads
AA-Omniscience IndexSource -41.3%-9.7%DeepSeek V4 Pro (High) leads
AA-Omniscience AccuracySource 25.4%41.8%DeepSeek V4 Pro (High) leads
AA-Omniscience Hallucination RateSource 89.4%88.6%DeepSeek V4 Pro (High) leads
SimpleQASource 46.2%Not comparable
Chinese-SimpleQASource 77.7%Not comparable
GPQA-DSource 89.1%Not comparable
HLESource 34.5%Not comparable
MathDeepSeek V4 Pro (High) wins
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
FrontierMath v2 (Tiers 1-3)Source 1.724%Not comparable
HMMT Feb 2026Source 94.0%Not comparable
IMOAnswerBenchSource 88.0%Not comparable
ApexSource 27.4%Not comparable
Apex ShortlistSource 85.5%Not comparable
Multimodal
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
Design Arena WebsiteSource 11501264DeepSeek V4 Pro (High) leads
Inst. Following
BenchmarkDeepSeek V3DeepSeek V4 Pro (High)Result
IFEvalSource 86.1%Not comparable
AA-IFBenchSource 34.8%71.3%DeepSeek V4 Pro (High) leads
Frequently Asked Questions (4)

Which is better, DeepSeek V3 or DeepSeek V4 Pro (High)?

DeepSeek V4 Pro (High) is ahead on BenchLM's BenchAlign leaderboard, 55.47 to 44.97. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 42% and 79.4%.

Which is better for knowledge tasks, DeepSeek V3 or DeepSeek V4 Pro (High)?

DeepSeek V3 has the edge for knowledge tasks in this comparison, averaging 72.7 versus 57. Inside this category, AA-GPQA Diamond is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V3 or DeepSeek V4 Pro (High)?

DeepSeek V4 Pro (High) has the edge for coding in this comparison, averaging 69.8 versus 38.9. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, DeepSeek V3 or DeepSeek V4 Pro (High)?

DeepSeek V4 Pro (High) has the edge for math in this comparison, averaging 94 versus 1.7. DeepSeek V3 stays close enough that the answer can still flip depending on your workload.

Self-host vs API cost

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

DeepSeek V3
API / mo$1,028
Self-host / mo$18,221
Break-even1.2B/day
DeepSeek V4 Pro (High)
API / mo$979
Self-host / moNot listed
Break-even
Proprietary model — self-hosting not applicable.
Model the full break-even

Related Comparisons

Last updated: July 23, 2026

Choose a model with this week’s evidence

Join 2,000+ readers for ranking moves, pricing changes, and the claims that still need proof.

One email each week. Unsubscribe anytime.