Private AI
ERNIE 5.1 is Baidu's latest Wenxin model, with broad upgrades to agentic workflows, knowledge, reasoning, deep search, and multimodal understanding. ⚠️ Note: This model routes through Baidu - privacy and logging guarantees may be limited.
Added May 10, 2026
Context Window
119.0K
Max Output
64.0K
Avg output tokens (7d)
291 tokens
Input Price (Auto)
$0.75/1M
Output Price (Auto)
$3.00/1M
Capabilities
Performance metrics and benchmarks
Sourced from LMArena.
Arena Score
1470.5
Overall Rank
#21 / 360
Votes
14,675
Confidence Interval
1464.6 - 1476.3
Coding
#18 / 355
3,943 votes
1515.2
Math
#14 / 349
836 votes
1479.9
Longer Query
#32 / 338
5,528 votes
1468.3
Creative Writing
#30 / 358
2,181 votes
1441.5
Instruction Following
#23 / 360
4,430 votes
1458.0
Hard Prompts
#25 / 360
9,286 votes
1488.2
Auto routing is available for this model. Explicit provider selection is not available.
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French
#10 / 245
528 votes
1507.2
Industry Mathematical
#12 / 342
759 votes
1493.1
German
#14 / 270
282 votes
1472.5
Industry Software And It Services
#14 / 360
5,671 votes
1508.3
Industry Life And Physical And Social Science
#15 / 358
2,414 votes
1490.0
Industry Business And Management And Financial Operations
#17 / 353
2,849 votes
1471.4
Industry Medicine And Healthcare
#17 / 329
1,088 votes
1489.8
English
#18 / 360
6,874 votes
1478.2
Chinese
#22 / 330
692 votes
1510.5
Russian
#22 / 323
1,637 votes
1470.0
Exclude Ties
#23 / 360
10,968 votes
1477.8
Hard Prompts English
#27 / 359
4,639 votes
1489.0
Multi Turn
#28 / 358
2,490 votes
1474.9
Korean
#29 / 240
237 votes
1420.6
Spanish
#32 / 248
475 votes
1455.1
Industry Entertainment And Sports And Media
#33 / 358
2,753 votes
1433.5
Industry Legal And Government
#33 / 333
1,142 votes
1468.3
Industry Writing And Literature And Language
#34 / 359
3,317 votes
1445.0
Expert
#43 / 309
1,234 votes
1475.2
Published 2026-05-27 · Matched as ernie-5.1
LMArena Dataset