Model comparison
Claude Haiku 5.5 vs ERNIE 5.1
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 43.8 on the Noometry Index.
Last verified . 1 shared benchmarks.
BaiduSummary
- They share 1 benchmark with published results for both. Claude Haiku 5.5 scores higher in 4 categories and ERNIE 5.1 in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 40.3.
- The biggest single-benchmark swing is NYT Connections (extended): 65.7% for Claude Haiku 5.5 and 23.4% for ERNIE 5.1.
Side by side
| Claude Haiku 5.5 | ERNIE 5.1 | |
|---|---|---|
| Provider | Anthropic | Baidu |
| Noometry Index | 49.5 | 43.8 |
| Released | 2026-10-07 | — |
| Weights | Proprietary | Proprietary |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 9 | 19 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), ERNIE 5.1: 44.0 (#76)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena WebDev | 1587 | — |
| LMArena Coding | — | 1488 |
Agentic & Tool Use Not comparable
Claude Haiku 5.5: —, ERNIE 5.1: —
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena Search | — | 1227 |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), ERNIE 5.1: 21.9 (#211)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| NYT Connections (extended) | 65.7% | 23.4% |
| LMArena Hard Prompts | — | 1481 |
| Mystery Game Puzzles | 30% | — |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), ERNIE 5.1: 40.3 (#92)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| LMArena Math | — | 1481 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), ERNIE 5.1: 41.9 (#102)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| LMArena Expert | — | 1492 |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), ERNIE 5.1: —
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, ERNIE 5.1: 55.5 (#29)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena Non-English | — | 1454 |
| LMArena Chinese | — | 1508 |
| LMArena French | — | 1488 |
| LMArena German | — | 1470 |
| LMArena Japanese | — | 1422 |
| LMArena Korean | — | 1427 |
| LMArena Russian | — | 1459 |
| LMArena Spanish | — | 1473 |
Instruction Following Not comparable
Claude Haiku 5.5: —, ERNIE 5.1: 76.7 (#37)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena Instruction Following | — | 1460 |
Long Context Not comparable
Claude Haiku 5.5: —, ERNIE 5.1: 44.7 (#59)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena Longer Query | — | 1462 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, ERNIE 5.1: 65.1 (#52)
| Benchmark | Claude Haiku 5.5 | ERNIE 5.1 |
|---|---|---|
| LMArena Text | — | 1468 |
| LMArena Creative Writing | — | 1441 |
| LMArena Multi-Turn | — | 1471 |
Frequently asked questions
Is Claude Haiku 5.5 better than ERNIE 5.1?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 43.8 on the Noometry Index.
Is Claude Haiku 5.5 or ERNIE 5.1 better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 44.0 in the Noometry coding category.
How many benchmarks do Claude Haiku 5.5 and ERNIE 5.1 share?
1 benchmark has published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and ERNIE 5.1 has 19.