BaiduERNIE 5.1
ERNIE 5.1 is a Baidu proprietary model. It is not yet ranked: 4 independent results so far, and the index needs at least five across two categories. Last measured 22 Oct 2026.
- Blended price
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- Output speed
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- First answer
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- Context
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- Full answer
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- Cost per run
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- Released
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- date not published by our sources
- Reasoning65
- Coding65
- Maths66
- Human preference66
Versions
Baidu has shipped 6 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| ERNIE 5.0thinking | 13 Nov 2025 | 47.4 | #456 |
| ERNIE 4.5 | 30 Jun 2025 | 44.1 | #549 |
| ERNIE 5.0 0110 | – | – | – |
| ERNIE 5.0 1022 | – | – | – |
| ERNIE 5.1this page | – | – | – |
| ERNIE 5.0 1220 | – | – | – |
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Reasoning
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Hard Prompts | 1487#54 | Arena (LMArena) |
Coding
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Coding | 1512#54 | Arena (LMArena) |
Agents & tools
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Searchnot in index | 1192#26 | Arena (LMArena) |
Maths
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Maths | 1478#41 | Arena (LMArena) |
Instruction following
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Instruction Followingnot in index | 1452#62 | Arena (LMArena) |
Human preference
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Text | 1467#50 | Arena (LMArena) | |
| Arena Creative Writingnot in index | 1428#75 | Arena (LMArena) | |
| Arena Multi-turnnot in index | 1471#59 | Arena (LMArena) | |
| Arena Longer Queriesnot in index | 1465#70 | Arena (LMArena) |
More from Baidu
See also
Questions people ask
- Why does ERNIE 5.1 have no BenchLeader Index score?
- The index needs at least five independent results across at least two categories; as of 24 Oct 2026 ERNIE 5.1 has 4 that count. Launch-post scores are never used, so it is ranked once independent publishers have measured it.
Data as of 24 Oct 2026. Compare with another model.
Cite as: BenchLeader, “ERNIE 5.1: benchmarks, pricing, speed and rank”, data as of 24 Oct 2026, https://www.benchleader.com/models/ernie-5-1.