Model comparison
ERNIE 5.1 vs Qwen3.5-Flash
ERNIE 5.1 and Qwen3.5-Flash score almost the same on the Noometry Index (43.1 vs 42.3), so choose on price, context window or the category you care about most.
Last verified . 17 shared benchmarks.
Baidu
Alibaba (Qwen)Summary
- They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 6 categories and Qwen3.5-Flash in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5-Flash leads 32.9 to 20.9.
Side by side
| ERNIE 5.1 | Qwen3.5-Flash | |
|---|---|---|
| Provider | Baidu | Alibaba (Qwen) |
| Noometry Index | 43.1 | 42.3 |
| Released | — | 2026-02-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.40 |
| Results tracked | 19 | 32 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 43.4 (#78), Qwen3.5-Flash: 33.9 (#234)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Coding | 1488 | 1412 |
| LMArena WebDev | — | 1243 |
| ALE-Bench | — | 221.8 |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Qwen3.5-Flash: —
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Search | 1227 | — |
| Vending-Bench 2 | — | 462.69 |
Reasoning Qwen3.5-Flash leads
ERNIE 5.1: 20.9 (#209), Qwen3.5-Flash: 32.9 (#63)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1404 |
| NYT Connections (extended) | 23.4% | — |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 82.9% |
| LMCA | — | 29.1% |
| Epoch Capabilities Index | — | 143.98 |
Math ERNIE 5.1 leads
ERNIE 5.1: 37.5 (#96), Qwen3.5-Flash: 36.3 (#117)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Math | 1481 | 1407 |
| FrontierMath (Tiers 1-3) | — | 18.2% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 6.2% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Qwen3.5-Flash leads
ERNIE 5.1: 41.2 (#103), Qwen3.5-Flash: 43.2 (#84)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Expert | 1491 | 1408 |
| GPQA Diamond | — | 82.3% |
| SimpleQA Verified | — | 20.3% |
| Vectara Hallucination Rate | — | 10.5% |
Multilingual ERNIE 5.1 leads
ERNIE 5.1: 55.7 (#28), Qwen3.5-Flash: 50.7 (#116)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1455 | 1385 |
| LMArena Chinese | 1507 | 1446 |
| LMArena French | 1486 | 1412 |
| LMArena German | 1470 | 1389 |
| LMArena Japanese | 1422 | 1369 |
| LMArena Korean | 1428 | 1344 |
| LMArena Russian | 1459 | 1379 |
| LMArena Spanish | 1472 | 1399 |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.9 (#35), Qwen3.5-Flash: 72.8 (#133)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1460 | 1374 |
Long Context ERNIE 5.1 leads
ERNIE 5.1: 44.7 (#56), Qwen3.5-Flash: 42.4 (#119)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1462 | 1392 |
Writing & Preference ERNIE 5.1 leads
ERNIE 5.1: 65.3 (#50), Qwen3.5-Flash: 58.2 (#117)
| Benchmark | ERNIE 5.1 | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1468 | 1397 |
| LMArena Creative Writing | 1440 | 1343 |
| LMArena Multi-Turn | 1471 | 1393 |
Frequently asked questions
Is ERNIE 5.1 better than Qwen3.5-Flash?
ERNIE 5.1 and Qwen3.5-Flash score almost the same on the Noometry Index (43.1 vs 42.3), so choose on price, context window or the category you care about most.
Is ERNIE 5.1 or Qwen3.5-Flash better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 43.4 versus 33.9 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Qwen3.5-Flash share?
17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Qwen3.5-Flash has 32.