Model comparison
ERNIE 5.1 vs Kimi K2.5 Instant
ERNIE 5.1 and Kimi K2.5 Instant score almost the same on the Noometry Index (43.8 vs 43.6), so choose on price, context window or the category you care about most.
Last verified . 16 shared benchmarks.
BaiduSummary
- They share 16 benchmarks with published results for both. ERNIE 5.1 scores higher in 7 categories and Kimi K2.5 Instant in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 29.7 to 21.9.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| ERNIE 5.1 | Kimi K2.5 Instant | |
|---|---|---|
| Provider | Baidu | Moonshot AI |
| Noometry Index | 43.8 | 43.6 |
| Released | — | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 19 | 18 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 44.0 (#76), Kimi K2.5 Instant: 42.6 (#97)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Coding | 1488 | 1484 |
| LMArena WebDev | — | 1404 |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Kimi K2.5 Instant: —
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Search | 1227 | — |
Reasoning Kimi K2.5 Instant leads
ERNIE 5.1: 21.9 (#211), Kimi K2.5 Instant: 29.7 (#90)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1443 |
| NYT Connections (extended) | 23.4% | — |
Math Too close to call
ERNIE 5.1: 40.3 (#92), Kimi K2.5 Instant: 39.4 (#105)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1481 | 1442 |
Knowledge ERNIE 5.1 leads
ERNIE 5.1: 41.9 (#102), Kimi K2.5 Instant: 40.2 (#123)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1492 | 1440 |
Multimodal Not comparable
ERNIE 5.1: —, Kimi K2.5 Instant: 40.2 (#50)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
Multilingual ERNIE 5.1 leads
ERNIE 5.1: 55.5 (#29), Kimi K2.5 Instant: 52.0 (#94)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1454 | 1406 |
| LMArena Chinese | 1508 | 1449 |
| LMArena French | 1488 | 1403 |
| LMArena German | 1470 | 1413 |
| LMArena Korean | 1427 | 1378 |
| LMArena Russian | 1459 | 1404 |
| LMArena Spanish | 1473 | 1447 |
| LMArena Japanese | 1422 | — |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.7 (#37), Kimi K2.5 Instant: 75.3 (#65)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1460 | 1430 |
Long Context Too close to call
ERNIE 5.1: 44.7 (#59), Kimi K2.5 Instant: 43.9 (#83)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1462 | 1435 |
Writing & Preference ERNIE 5.1 leads
ERNIE 5.1: 65.1 (#52), Kimi K2.5 Instant: 60.6 (#95)
| Benchmark | ERNIE 5.1 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1468 | 1420 |
| LMArena Creative Writing | 1441 | 1381 |
| LMArena Multi-Turn | 1471 | 1427 |
Frequently asked questions
Is ERNIE 5.1 better than Kimi K2.5 Instant?
ERNIE 5.1 and Kimi K2.5 Instant score almost the same on the Noometry Index (43.8 vs 43.6), so choose on price, context window or the category you care about most.
Is ERNIE 5.1 or Kimi K2.5 Instant better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 42.6 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Kimi K2.5 Instant share?
16 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Kimi K2.5 Instant has 18.