Model comparison
DeepSeek V4 Pro vs GPT-5.4 Pro
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: DeepSeek V4 Pro #46 (Supported); GPT-5.4 Pro #44 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek V4 Pro and GPT-5.4 Pro share 1 comparable benchmark result. 3 of 8 categories are comparable. 22 results are unique to DeepSeek V4 Pro; 11 to GPT-5.4 Pro.
Updated July 23, 2026- Shared results
- 1
- DeepSeek V4 Pro only
- 22
- GPT-5.4 Pro only
- 11
- Comparable categories
- 3 / 8
Pick GPT-5.4 Pro if you want the stronger benchmark profile. DeepSeek V4 Pro only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 3 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
GPT-5.4 Pro has the cleaner BenchAlign overall profile here, landing at 60.89 versus 60.66. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
GPT-5.4 Pro's sharpest advantage is in agentic, where it averages 89.3 against 59.1. The single biggest benchmark swing on the page is HLE, 7.7% to 58.7%.
GPT-5.4 Pro is also the more expensive model on tokens at $30.00 input / $180.00 output per 1M tokens, versus $0.43 input / $0.87 output per 1M tokens for DeepSeek V4 Pro. That is roughly 206.9x on output cost alone. GPT-5.4 Pro is the reasoning model in the pair, while DeepSeek V4 Pro 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. GPT-5.4 Pro gives you the larger context window at 1.05M, compared with 1M for DeepSeek V4 Pro.
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 Pro | Δ | GPT-5.4 Pro |
|---|---|---|---|
| Agentic | DeepSeek V4 Pro59.1 | Margin→ 30.2 | GPT-5.4 Pro89.3 |
| Knowledge | DeepSeek V4 Pro41.3 | Margin→ 17.4 | GPT-5.4 Pro58.7 |
| Math | DeepSeek V4 Pro31.7 | Margin→ 15.2 | GPT-5.4 Pro46.9 |
| Coding | DeepSeek V4 Pro65.3 | MarginNo overlap | GPT-5.4 ProNot measured |
| Reasoning | DeepSeek V4 ProNot measured | MarginNo overlap | GPT-5.4 Pro83.3 |
| Multimodal | DeepSeek V4 ProNot measured | MarginNo overlap | GPT-5.4 Pro94.0 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
HLE
KnowledgeA 7.7%B 58.7%Winner: GPT-5.4 ProΔ 51HLE: DeepSeek V4 Pro scored 7.7%; GPT-5.4 Pro scored 58.7%. GPT-5.4 Pro wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | DeepSeek V4 Pro | GPT-5.4 Pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek V4 Pro$0.435 input / $0.87 output | GPT-5.4 Pro$30 input / $180 output | DeepSeek V4 Pro has the lower combined listed price. |
| Generation speedtokens per second | DeepSeek V4 ProNot available | GPT-5.4 Pro74 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek V4 ProNot available | GPT-5.4 Pro151.79 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek V4 Pro1M | GPT-5.4 Pro1.05M | GPT-5.4 Pro lists the larger context window. |
Benchmark Deep Dive
AgenticGPT-5.4 Pro wins7 benchmarks
| Benchmark | DeepSeek V4 Pro | GPT-5.4 Pro | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 59.1% | — | Not comparable |
| MCP AtlasSource | 69.4% | — | Not comparable |
| ToolathlonSource | 46.3% | — | Not comparable |
| Claw-EvalSource | 59.8% | — | Not comparable |
| Gert LabsSource | 50.28% | — | Not comparable |
| ResearchClawBenchSource | 17.1% | — | Not comparable |
| BrowseCompSource | — | 89.3% | Not comparable |
Coding4 benchmarks
Reasoning4 benchmarks
KnowledgeGPT-5.4 Pro wins9 benchmarks
| Benchmark | DeepSeek V4 Pro | GPT-5.4 Pro | Result |
|---|---|---|---|
| MMLU-ProSource | 82.9% | — | Not comparable |
| SimpleQASource | 45% | — | Not comparable |
| Chinese-SimpleQASource | 75.8% | — | Not comparable |
| GPQASource | 72.9% | — | Not comparable |
| GPQA-DSource | 72.9% | — | Not comparable |
| HLESource | 7.7% | 58.7% | GPT-5.4 Pro leads |
| FrontierScienceSource | — | 36.7% | Not comparable |
| FrontierScience ResearchSource | — | 36.7% | Not comparable |
| HLE w/o toolsSource | — | 42.7% | Not comparable |
MathGPT-5.4 Pro wins8 benchmarks
| Benchmark | DeepSeek V4 Pro | GPT-5.4 Pro | Result |
|---|---|---|---|
| HMMT Feb 2026Source | 31.7% | — | Not comparable |
| IMOAnswerBenchSource | 35.3% | — | Not comparable |
| ApexSource | 0.4% | — | Not comparable |
| Apex ShortlistSource | 9.2% | — | Not comparable |
| IPhO 2025 (Theory)Source | — | 93.5% | Not comparable |
| FrontierMath (legacy)Source | — | 50% | Not comparable |
| FrontierMath v2 (Tiers 1-3)Source | — | 50.000% | Not comparable |
| FrontierMath v2 (Tier 4)Source | — | 37.500% | Not comparable |
Frequently Asked Questions (4)
Which is better, DeepSeek V4 Pro or GPT-5.4 Pro?
GPT-5.4 Pro is ahead on BenchLM's BenchAlign leaderboard, 60.89 to 60.66. The biggest single separator in this matchup is HLE, where the scores are 7.7% and 58.7%.
Which is better for knowledge tasks, DeepSeek V4 Pro or GPT-5.4 Pro?
GPT-5.4 Pro has the edge for knowledge tasks in this comparison, averaging 58.7 versus 41.3. Inside this category, HLE is the benchmark that creates the most daylight between them.
Which is better for math, DeepSeek V4 Pro or GPT-5.4 Pro?
GPT-5.4 Pro has the edge for math in this comparison, averaging 46.9 versus 31.7. DeepSeek V4 Pro stays close enough that the answer can still flip depending on your workload.
Which is better for agentic tasks, DeepSeek V4 Pro or GPT-5.4 Pro?
GPT-5.4 Pro has the edge for agentic tasks in this comparison, averaging 89.3 versus 59.1. DeepSeek V4 Pro stays close enough that the answer can still flip depending on your workload.
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