Model comparison
DeepSeek V4 Flash (High) vs DeepSeek V4 Pro Base
Head-to-head evidence from 2 shared benchmark results across 1 category. 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 Base unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek V4 Flash (High) and DeepSeek V4 Pro Base share 2 comparable benchmark results. 1 of 8 categories are comparable. 36 results are unique to DeepSeek V4 Flash (High); 22 to DeepSeek V4 Pro Base.
Updated July 23, 2026- Shared results
- 2
- DeepSeek V4 Flash (High) only
- 36
- DeepSeek V4 Pro Base only
- 22
- Comparable categories
- 1 / 8
DeepSeek V4 Flash (High) makes more sense if you want the stronger reasoning-first profile, while DeepSeek V4 Pro Base is the cleaner fit 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 2 shared benchmark results across 1 evidence category; 1 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 Base 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 (High) and DeepSeek V4 Pro Base 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 Flash (High) is the reasoning model in the pair, while DeepSeek V4 Pro Base 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.
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 Base |
|---|---|---|---|
| Knowledge | DeepSeek V4 Flash (High)52.1 | Margin→ 14.3 | DeepSeek V4 Pro Base66.4 |
| Agentic | DeepSeek V4 Flash (High)55.3 | MarginNo overlap | DeepSeek V4 Pro BaseNot measured |
| Coding | DeepSeek V4 Flash (High)68.5 | MarginNo overlap | DeepSeek V4 Pro BaseNot measured |
| Reasoning | DeepSeek V4 Flash (High)Not measured | MarginNo overlap | DeepSeek V4 Pro Base51.5 |
| Math | DeepSeek V4 Flash (High)91.9 | MarginNo overlap | DeepSeek V4 Pro BaseNot measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
SimpleQA
KnowledgeA 28.9%B 55.2%Winner: DeepSeek V4 Pro BaseΔ 26.3SimpleQA: DeepSeek V4 Flash (High) scored 28.9%; DeepSeek V4 Pro Base scored 55.2%. DeepSeek V4 Pro Base wins this benchmark. - Source ↗
MMLU-Pro
KnowledgeA 86.4%B 73.5%Winner: DeepSeek V4 Flash (High)Δ 12.9MMLU-Pro: DeepSeek V4 Flash (High) scored 86.4%; DeepSeek V4 Pro Base scored 73.5%. DeepSeek V4 Flash (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 Base | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek V4 Flash (High)$0.14 input / $0.28 output | DeepSeek V4 Pro BaseNot available | A complete price comparison is not available. |
| Generation speedtokens per second | DeepSeek V4 Flash (High)Not available | DeepSeek V4 Pro BaseNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek V4 Flash (High)Not available | DeepSeek V4 Pro BaseNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek V4 Flash (High)1M | DeepSeek V4 Pro Base1M | Listed context windows are equal. |
Benchmark Deep Dive
Agentic9 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 56.6% | — | Not comparable |
| BrowseCompSource | 53.5% | — | Not comparable |
| HLE w/ toolsSource | 40.3% | — | Not comparable |
| MCP AtlasSource | 67.4% | — | Not comparable |
| ToolathlonSource | 43.5% | — | Not comparable |
| τ²-bench resultsSource | 95.6% | — | Not comparable |
| AA Agentic IndexSource | 28.2% | — | Not comparable |
| GDPval-AASource | 32.4% | — | Not comparable |
| GDPval-AASource | 1147 | — | Not comparable |
Coding9 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| CodeforcesSource | 2816.0 | — | Not comparable |
| SWE-bench VerifiedSource | 78.6% | — | Not comparable |
| SWE-bench ProSource | 52.3% | — | Not comparable |
| SWE MultilingualSource | 70.2% | — | Not comparable |
| Terminal-Bench 2.0Source | 56.6% | — | Not comparable |
| AA-SciCodeSource | 42.0% | — | Not comparable |
| AA Coding IndexSource | 52.0% | — | Not comparable |
| BigCodeBenchSource | — | 59.2% | Not comparable |
| HumanEvalSource | — | 76.8% | Not comparable |
Reasoning10 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| MRCR 1MSource | 76.9% | — | Not comparable |
| CorpusQA 1MSource | 59.3% | — | Not comparable |
| AA-LCRSource | 62.7% | — | Not comparable |
| CritPtSource | 3.4% | — | Not comparable |
| BBHSource | — | 87.5% | Not comparable |
| DROPSource | — | 88.7% | Not comparable |
| HellaSwagSource | — | 88.0% | Not comparable |
| WinoGrandeSource | — | 81.5% | Not comparable |
| CLUEWSCSource | — | 85.2% | Not comparable |
| LongBench v2Source | — | 51.5% | Not comparable |
KnowledgeDeepSeek V4 Pro Base wins22 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| MMLU-ProSource | 86.4% | 73.5% | DeepSeek V4 Flash (High) leads |
| SimpleQASource | 28.9% | 55.2% | DeepSeek V4 Pro Base leads |
| Chinese-SimpleQASource | 73.2% | — | Not comparable |
| GPQASource | 87.4% | — | Not comparable |
| GPQA-DSource | 87.4% | — | Not comparable |
| HLESource | 29.4% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 37.5% | — | Not comparable |
| AA-GPQA DiamondSource | 86.7% | — | Not comparable |
| AA-HLESource | 27.8% | — | Not comparable |
| AA-Omniscience IndexSource | -22.3% | — | Not comparable |
| AA-Omniscience AccuracySource | 35.5% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 89.7% | — | Not comparable |
| AGIEvalSource | — | 83.1% | Not comparable |
| MMLUSource | — | 90.1% | Not comparable |
| MMLU-ReduxSource | — | 90.8% | Not comparable |
| MMMLUSource | — | 90.3% | Not comparable |
| C-EvalSource | — | 93.1% | Not comparable |
| CMMLUSource | — | 90.8% | Not comparable |
| MultiLoKoSource | — | 51.1% | Not comparable |
| SuperGPQASource | — | 53.9% | Not comparable |
| FACTS ParametricSource | — | 62.6% | Not comparable |
| TriviaQASource | — | 85.6% | Not comparable |
Math7 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| HMMT Feb 2026Source | 91.9% | — | Not comparable |
| IMOAnswerBenchSource | 85.1% | — | Not comparable |
| ApexSource | 19.1% | — | Not comparable |
| Apex ShortlistSource | 72.1% | — | Not comparable |
| GSM8KSource | — | 92.6% | Not comparable |
| MATHSource | — | 64.5% | Not comparable |
| CMathSource | — | 90.9% | Not comparable |
Multilingual1 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| MGSMSource | — | 84.4% | Not comparable |
Multimodal1 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1238 | — | Not comparable |
Inst. Following1 benchmarks
| Benchmark | DeepSeek V4 Flash (High) | DeepSeek V4 Pro Base | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, DeepSeek V4 Flash (High) or DeepSeek V4 Pro Base?
DeepSeek V4 Flash (High) and DeepSeek V4 Pro Base 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 (High) or DeepSeek V4 Pro Base?
DeepSeek V4 Pro Base has the edge for knowledge tasks in this comparison, averaging 66.4 versus 52.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Related Comparisons
Explore More
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.