Model comparison
DeepSeek V4 Flash (High) vs DeepSeek V4 Pro (High)
Head-to-head evidence from 38 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Sibling matchup inside the DeepSeek V4 family.
Public leaderboard positions: DeepSeek V4 Flash (High) #92 (Estimated); DeepSeek V4 Pro (High) #81 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek V4 Flash (High) and DeepSeek V4 Pro (High) share 38 comparable benchmark results. 4 of 8 categories are comparable. 0 results are unique to DeepSeek V4 Flash (High); 0 to DeepSeek V4 Pro (High).
Updated July 23, 2026- Shared results
- 38
- DeepSeek V4 Flash (High) only
- 0
- DeepSeek V4 Pro (High) only
- 0
- Comparable categories
- 4 / 8
DeepSeek V4 Flash (High) makes more sense if you want the cheaper token bill, while DeepSeek V4 Pro (High) is the cleaner fit if agentic is the priority.
Confidence note. This is a partial-evidence comparison with 38 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 (High) and DeepSeek V4 Pro (High) 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 Pro (High) has the cleaner BenchAlign overall profile here, landing at 55.47 versus 53.95. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
DeepSeek V4 Pro (High)'s sharpest advantage is in agentic, where it averages 70.6 against 55.3. The single biggest benchmark swing on the page is BrowseComp, 53.5% to 80.4%.
DeepSeek V4 Pro (High) 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 (High). 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 | DeepSeek V4 Flash (High) | Δ | DeepSeek V4 Pro (High) |
|---|---|---|---|
| Agentic | DeepSeek V4 Flash (High)55.3 | Margin→ 15.3 | DeepSeek V4 Pro (High)70.6 |
| Knowledge | DeepSeek V4 Flash (High)52.1 | Margin→ 4.9 | DeepSeek V4 Pro (High)57.0 |
| Math | DeepSeek V4 Flash (High)91.9 | Margin→ 2.1 | DeepSeek V4 Pro (High)94.0 |
| Coding | DeepSeek V4 Flash (High)68.5 | Margin→ 1.3 | DeepSeek V4 Pro (High)69.8 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
BrowseComp
AgenticA 53.5%B 80.4%Winner: DeepSeek V4 Pro (High)Δ 26.9BrowseComp: DeepSeek V4 Flash (High) scored 53.5%; DeepSeek V4 Pro (High) scored 80.4%. DeepSeek V4 Pro (High) wins this benchmark. - Source ↗
SimpleQA
KnowledgeA 28.9%B 46.2%Winner: DeepSeek V4 Pro (High)Δ 17.3SimpleQA: DeepSeek V4 Flash (High) scored 28.9%; DeepSeek V4 Pro (High) scored 46.2%. DeepSeek V4 Pro (High) wins this benchmark. - Source ↗
Terminal-Bench 2.0
AgenticA 56.6%B 63.3%Winner: DeepSeek V4 Pro (High)Δ 6.7Terminal-Bench 2.0: DeepSeek V4 Flash (High) scored 56.6%; DeepSeek V4 Pro (High) scored 63.3%. DeepSeek V4 Pro (High) wins this benchmark. - Source ↗
HLE
KnowledgeA 29.4%B 34.5%Winner: DeepSeek V4 Pro (High)Δ 5.1HLE: DeepSeek V4 Flash (High) scored 29.4%; DeepSeek V4 Pro (High) scored 34.5%. DeepSeek V4 Pro (High) wins this benchmark. - Source ↗
SWE-bench Pro
CodingA 52.3%B 54.4%Winner: DeepSeek V4 Pro (High)Δ 2.1SWE-bench Pro: DeepSeek V4 Flash (High) scored 52.3%; DeepSeek V4 Pro (High) scored 54.4%. DeepSeek V4 Pro (High) wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek V4 Flash (High)$0.14 input / $0.28 output | DeepSeek V4 Pro (High)$0.435 input / $0.87 output | DeepSeek V4 Flash (High) has the lower combined listed price. |
| Generation speedtokens per second | DeepSeek V4 Flash (High)Not available | DeepSeek V4 Pro (High)Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek V4 Flash (High)Not available | DeepSeek V4 Pro (High)Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek V4 Flash (High)1M | DeepSeek V4 Pro (High)1M | Listed context windows are equal. |
Benchmark Deep Dive
AgenticDeepSeek V4 Pro (High) wins9 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 56.6% | 63.3% | DeepSeek V4 Pro (High) leads |
| BrowseCompSource | 53.5% | 80.4% | DeepSeek V4 Pro (High) leads |
| HLE w/ toolsSource | 40.3% | 44.7% | DeepSeek V4 Pro (High) leads |
| MCP AtlasSource | 67.4% | 74.2% | DeepSeek V4 Pro (High) leads |
| ToolathlonSource | 43.5% | 49% | DeepSeek V4 Pro (High) leads |
| τ²-bench resultsSource | 95.6% | 94.2% | DeepSeek V4 Flash (High) leads |
| AA Agentic IndexSource | 28.2% | 34.4% | DeepSeek V4 Pro (High) leads |
| GDPval-AASource | 32.4% | 39.9% | DeepSeek V4 Pro (High) leads |
| GDPval-AASource | 1147 | 1299 | DeepSeek V4 Pro (High) leads |
CodingDeepSeek V4 Pro (High) wins7 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Result |
|---|---|---|---|
| CodeforcesSource | 2816.0 | 2919.0 | DeepSeek V4 Pro (High) leads |
| SWE-bench VerifiedSource | 78.6% | 79.4% | DeepSeek V4 Pro (High) leads |
| SWE-bench ProSource | 52.3% | 54.4% | DeepSeek V4 Pro (High) leads |
| SWE MultilingualSource | 70.2% | 74.1% | DeepSeek V4 Pro (High) leads |
| Terminal-Bench 2.0Source | 56.6% | 63.3% | DeepSeek V4 Pro (High) leads |
| AA-SciCodeSource | 42.0% | 46.4% | DeepSeek V4 Pro (High) leads |
| AA Coding IndexSource | 52.0% | 58.7% | DeepSeek V4 Pro (High) leads |
Reasoning4 benchmarks
KnowledgeDeepSeek V4 Pro (High) wins12 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Result |
|---|---|---|---|
| MMLU-ProSource | 86.4% | 87.1% | DeepSeek V4 Pro (High) leads |
| SimpleQASource | 28.9% | 46.2% | DeepSeek V4 Pro (High) leads |
| Chinese-SimpleQASource | 73.2% | 77.7% | DeepSeek V4 Pro (High) leads |
| GPQASource | 87.4% | 89.1% | DeepSeek V4 Pro (High) leads |
| GPQA-DSource | 87.4% | 89.1% | DeepSeek V4 Pro (High) leads |
| HLESource | 29.4% | 34.5% | DeepSeek V4 Pro (High) leads |
| Artificial Analysis Intelligence IndexSource | 37.5% | 43.1% | DeepSeek V4 Pro (High) leads |
| AA-GPQA DiamondSource | 86.7% | 90.5% | DeepSeek V4 Pro (High) leads |
| AA-HLESource | 27.8% | 33.5% | DeepSeek V4 Pro (High) leads |
| AA-Omniscience IndexSource | -22.3% | -9.7% | DeepSeek V4 Pro (High) leads |
| AA-Omniscience AccuracySource | 35.5% | 41.8% | DeepSeek V4 Pro (High) leads |
| AA-Omniscience Hallucination RateSource | 89.7% | 88.6% | DeepSeek V4 Pro (High) leads |
MathDeepSeek V4 Pro (High) wins4 benchmarks
Multimodal1 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1238 | 1264 | DeepSeek V4 Pro (High) leads |
Inst. Following1 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro (High) | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | 71.3% | DeepSeek V4 Flash (High) leads |
Frequently Asked Questions (5)
Which is better, DeepSeek V4 Flash (High) or DeepSeek V4 Pro (High)?
DeepSeek V4 Flash (High) and DeepSeek V4 Pro (High) 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. DeepSeek V4 Pro (High) is ahead on BenchLM's BenchAlign leaderboard 55.47 to 53.95.
Which is better for knowledge tasks, DeepSeek V4 Flash (High) or DeepSeek V4 Pro (High)?
DeepSeek V4 Pro (High) has the edge for knowledge tasks in this comparison, averaging 57 versus 52.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Which is better for coding, DeepSeek V4 Flash (High) or DeepSeek V4 Pro (High)?
DeepSeek V4 Pro (High) has the edge for coding in this comparison, averaging 69.8 versus 68.5. Inside this category, Codeforces is the benchmark that creates the most daylight between them.
Which is better for math, DeepSeek V4 Flash (High) or DeepSeek V4 Pro (High)?
DeepSeek V4 Pro (High) has the edge for math in this comparison, averaging 94 versus 91.9. Inside this category, Apex Shortlist is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, DeepSeek V4 Flash (High) or DeepSeek V4 Pro (High)?
DeepSeek V4 Pro (High) has the edge for agentic tasks in this comparison, averaging 70.6 versus 55.3. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
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