Model comparison
ERNIE 5.1 vs Nova 2 Lite
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 39.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
BaiduSummary
- They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 6 categories and Nova 2 Lite in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 53.9.
Side by side
| ERNIE 5.1 | Nova 2 Lite | |
|---|---|---|
| Provider | Baidu | Amazon |
| Noometry Index | 43.8 | 39.7 |
| Released | — | 2025-12-01 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 64K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 19 | 19 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 44.0 (#76), Nova 2 Lite: 40.7 (#134)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Coding | 1488 | 1385 |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Nova 2 Lite: 24.1 (#121)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 27.1% |
| LMArena Search | 1227 | — |
Reasoning Nova 2 Lite leads
ERNIE 5.1: 21.9 (#211), Nova 2 Lite: 27.5 (#118)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1364 |
| NYT Connections (extended) | 23.4% | — |
Math ERNIE 5.1 leads
ERNIE 5.1: 40.3 (#92), Nova 2 Lite: 37.5 (#156)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Math | 1481 | 1359 |
Knowledge Nova 2 Lite leads
ERNIE 5.1: 41.9 (#102), Nova 2 Lite: 43.0 (#94)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Expert | 1492 | 1358 |
| Vectara Hallucination Rate | — | 5.1% |
Multilingual ERNIE 5.1 leads
ERNIE 5.1: 55.5 (#29), Nova 2 Lite: 47.1 (#153)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Non-English | 1454 | 1337 |
| LMArena Chinese | 1508 | 1364 |
| LMArena French | 1488 | 1381 |
| LMArena German | 1470 | 1343 |
| LMArena Japanese | 1422 | 1271 |
| LMArena Korean | 1427 | 1284 |
| LMArena Russian | 1459 | 1343 |
| LMArena Spanish | 1473 | 1373 |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.7 (#37), Nova 2 Lite: 70.5 (#161)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Instruction Following | 1460 | 1335 |
Long Context ERNIE 5.1 leads
ERNIE 5.1: 44.7 (#59), Nova 2 Lite: 40.6 (#150)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Longer Query | 1462 | 1335 |
Writing & Preference ERNIE 5.1 leads
ERNIE 5.1: 65.1 (#52), Nova 2 Lite: 53.9 (#154)
| Benchmark | ERNIE 5.1 | Nova 2 Lite |
|---|---|---|
| LMArena Text | 1468 | 1362 |
| LMArena Creative Writing | 1441 | 1291 |
| LMArena Multi-Turn | 1471 | 1338 |
Frequently asked questions
Is ERNIE 5.1 better than Nova 2 Lite?
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 39.7 on the Noometry Index.
Is ERNIE 5.1 or Nova 2 Lite better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 40.7 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Nova 2 Lite share?
17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Nova 2 Lite has 19.