Model comparison
ERNIE 5.1 vs Trinity Large Thinking
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 38.6 on the Noometry Index.
Last verified . 18 shared benchmarks.
Baidu
Arcee AISummary
- They share 18 benchmarks with published results for both. ERNIE 5.1 scores higher in 8 categories and Trinity Large Thinking in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 53.8.
- The biggest single-benchmark swing is NYT Connections (extended): 23.4% for ERNIE 5.1 and 16.5% for Trinity Large Thinking.
- Trinity Large Thinking has downloadable open weights; the other is API-only.
Side by side
| ERNIE 5.1 | Trinity Large Thinking | |
|---|---|---|
| Provider | Baidu | Arcee AI |
| Noometry Index | 43.8 | 38.6 |
| Released | — | 2026-04-01 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 80K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $0.80 |
| Results tracked | 19 | 24 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 44.0 (#76), Trinity Large Thinking: 34.1 (#244)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Coding | 1488 | 1381 |
| LMArena WebDev | — | 1238 |
| SciCode | — | 36.1% |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Trinity Large Thinking: —
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Search | 1227 | — |
Reasoning ERNIE 5.1 leads
ERNIE 5.1: 21.9 (#211), Trinity Large Thinking: 16.9 (#298)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| NYT Connections (extended) | 23.4% | 16.5% |
| LMArena Hard Prompts | 1481 | 1350 |
| CritPt | — | 0.9% |
| Thematic Generalization | — | 41.6% |
| Surface Evolver Bench | — | 15.6% |
Math ERNIE 5.1 leads
ERNIE 5.1: 40.3 (#92), Trinity Large Thinking: 37.6 (#149)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Math | 1481 | 1366 |
Knowledge Too close to call
ERNIE 5.1: 41.9 (#102), Trinity Large Thinking: 40.9 (#113)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Expert | 1492 | 1360 |
| Vectara Hallucination Rate | — | 6.9% |
Multilingual ERNIE 5.1 leads
ERNIE 5.1: 55.5 (#29), Trinity Large Thinking: 46.2 (#160)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | 1454 | 1325 |
| LMArena Chinese | 1508 | 1373 |
| LMArena French | 1488 | 1374 |
| LMArena German | 1470 | 1356 |
| LMArena Japanese | 1422 | 1311 |
| LMArena Korean | 1427 | 1306 |
| LMArena Russian | 1459 | 1337 |
| LMArena Spanish | 1473 | 1357 |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.7 (#37), Trinity Large Thinking: 70.5 (#162)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | 1460 | 1334 |
Long Context ERNIE 5.1 leads
ERNIE 5.1: 44.7 (#59), Trinity Large Thinking: 41.3 (#144)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Longer Query | 1462 | 1355 |
Writing & Preference ERNIE 5.1 leads
ERNIE 5.1: 65.1 (#52), Trinity Large Thinking: 53.8 (#158)
| Benchmark | ERNIE 5.1 | Trinity Large Thinking |
|---|---|---|
| LMArena Text | 1468 | 1340 |
| LMArena Creative Writing | 1441 | 1320 |
| LMArena Multi-Turn | 1471 | 1342 |
Frequently asked questions
Is ERNIE 5.1 better than Trinity Large Thinking?
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 38.6 on the Noometry Index.
Is ERNIE 5.1 or Trinity Large Thinking better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 34.1 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Trinity Large Thinking share?
18 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Trinity Large Thinking has 24.