Model comparison
DeepSeek V4 Pro vs Qwen3.5-2B
DeepSeek V4 Pro has enough public results to be ranked (#31); Qwen3.5-2B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
DeepSeek
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. DeepSeek V4 Pro scores higher in 1 category and Qwen3.5-2B in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4 Pro leads 56.5 to 19.2.
- The biggest single-benchmark swing is Chess Puzzles: 47% for DeepSeek V4 Pro and 0% for Qwen3.5-2B.
Side by side
| DeepSeek V4 Pro | Qwen3.5-2B | |
|---|---|---|
| Provider | DeepSeek | Alibaba (Qwen) |
| Noometry Index | 54.3 | 29.3 |
| Released | 2026-04-24 | 2026-02-24 |
| Weights | Open | Open |
| Context window | 1M | — |
| Max output | 393K | — |
| Input $ / M tokens | $0.66 | — |
| Output $ / M tokens | $1.98 | — |
| Results tracked | 48 | 1 |
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Category by category
Coding Not comparable
DeepSeek V4 Pro: 52.4 (#34), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| SWE-bench Verified | 77.6% | — |
| FrontierCode | 28.6% | — |
| LMArena WebDev | 1582 | — |
| SciCode | 51% | — |
| WeirdML | 66.2% | — |
| LMArena Coding | 1470 | — |
| ALE-Bench | 1,403 | — |
Agentic & Tool Use Not comparable
DeepSeek V4 Pro: 32.8 (#58), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| APEX-Agents | 47.3% | — |
| Vending-Bench 2 | 3,285 | — |
Reasoning DeepSeek V4 Pro leads
DeepSeek V4 Pro: 56.5 (#24), Qwen3.5-2B: 19.2
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| Chess Puzzles | 47% | 0% |
| ARC-AGI-2 | 61.3% | — |
| Kagi LLM Benchmark | 53.5% | — |
| NYT Connections (extended) | 91.3% | — |
| ARC-AGI-1 | 90.5% | — |
| CritPt | 18% | — |
| LMArena Hard Prompts | 1461 | — |
| Mystery Game Puzzles | 43% | — |
| DTBench | 93.9% | — |
| LMCA | 45.5% | — |
| Surface Evolver Bench | 40% | — |
| Epoch Capabilities Index | 155.31 | — |
| ForecastBench | 56.1 | — |
Math Not comparable
DeepSeek V4 Pro: 64.8 (#30), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 64.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.6% | — |
| OTIS Mock AIME 2024-2025 | 98.6% | — |
| ProofBench | 50% | — |
| LMArena Math | 1455 | — |
Knowledge Not comparable
DeepSeek V4 Pro: 59.5 (#31), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| GPQA Diamond | 91.7% | — |
| SimpleQA Verified | 52.9% | — |
| Vectara Hallucination Rate | 8.6% | — |
| LMArena Expert | 1464 | — |
Multilingual Not comparable
DeepSeek V4 Pro: 54.4 (#45), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| LMArena Non-English | 1439 | — |
| LMArena Chinese | 1486 | — |
| LMArena French | 1472 | — |
| LMArena German | 1458 | — |
| LMArena Japanese | 1445 | — |
| LMArena Korean | 1447 | — |
| LMArena Russian | 1453 | — |
| LMArena Spanish | 1458 | — |
Instruction Following Not comparable
DeepSeek V4 Pro: 76.1 (#47), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| LMArena Instruction Following | 1448 | — |
Long Context Not comparable
DeepSeek V4 Pro: 45.0 (#51), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| CL-bench Life | 13.5% | — |
| LMArena Longer Query | 1458 | — |
Writing & Preference Not comparable
DeepSeek V4 Pro: 65.5 (#46), Qwen3.5-2B: —
| Benchmark | DeepSeek V4 Pro | Qwen3.5-2B |
|---|---|---|
| LMArena Text | 1451 | — |
| LMArena Creative Writing | 1446 | — |
| EQ-Bench Creative Writing | 1553 | — |
| EQ-Bench 4 | 1166 | — |
| LMArena Multi-Turn | 1467 | — |
Frequently asked questions
Is DeepSeek V4 Pro better than Qwen3.5-2B?
DeepSeek V4 Pro has enough public results to be ranked (#31); Qwen3.5-2B does not yet, so treat this comparison as directional.
How many benchmarks do DeepSeek V4 Pro and Qwen3.5-2B share?
1 benchmark has published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and Qwen3.5-2B has 1.