ERNIE 5.1 vs Hy3
Benchmark Performance
Available Benchmarks
| Benchmark | ERNIE 5.1 | Hy3 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,468.10100% of row best · rating · ernie-5.1; 95% CI [1463.48233336, 1472.72453179]; votes 37137; rank 25 | 1,439.9998% of row best · rating · hy3; 95% CI [1432.36272776, 1447.61573606]; votes 6911; rank 63 |
| Overall ResultCounted from the protocol-matched rows above | 1 benchmark winOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | ERNIE 5.1 | Hy3 |
|---|---|---|
| Developer | Baidu | Tencent |
| Family | Ernie 5 | Hy3 |
| Model | ERNIE 5.1 | Hy3 |
| Version | ERNIE 5.1 | Hy3 |
| Lifecycle | active | active |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 131,072 | 262,144 |
| Total parameters | Unknown | 298,786,155,776 |
| Active parameters | Unknown | 21,000,000,000 |
| License | Unknown | apache-2.0 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Baidu Qianfan (Standard) | Deepinfra (Standard), Openrouter (Standard) |
| Capabilities | agents, chat, reasoning, search, tools | chat, generation, tools |
13 comparable fields · 9 material differences · Pair passes the primary-source comparison gate
ERNIE 5.1 Capabilities
Hy3 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
 Hy3Tencent | vs | Hy4 previewTencent | family variantstext |
 ERNIE 5.1Baidu | vs | ERNIE X1.1Baidu | family variantstext |
ERNIE 5.1Baidu | vs |  Sonar Deep ResearchPerplexity | cross-developer peerstext |
ERNIE 5.1Baidu | vs | Sonar Reasoning ProPerplexity | cross-developer peerstext |
ERNIE 5.1Baidu | vs |  GLM-5.3Z.ai | cross-developer peerstext |
ERNIE-4.5-0.3B-PTBaidu | vs | ERNIE 5.1Baidu | family variantstext |
ERNIE 5.1Baidu | vs |  Command ACohere | cross-developer peerstext |
ERNIE 5.1Baidu | vs | SonarPerplexity | cross-developer peerstext |
ERNIE 5.1Baidu | vs | Sonar ProPerplexity | cross-developer peerstext |
ERNIE 5.1Baidu | vs | Hy4 previewTencent | cross-developer peerstext |
ERNIE 5.1Baidu | vs |  DeepSeek-V4-Flash-Vision-ExpDeepSeek | cross-developer peerstext |
ERNIE 5.1Baidu | vs |  Antigravity AgentGoogle DeepMind | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
ERNIE 5.1 vs Hy3 FAQs
Is ERNIE 5.1 or Hy3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both ERNIE 5.1 and Hy3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, ERNIE 5.1 or Hy3?+
ERNIE 5.1 is $4.00 and Hy3 is $0.132 per million tokens, so Hy3 is cheaper on this metric. ERNIE 5.1 is $18.00 and Hy3 is $0.528 per million tokens, so Hy3 is cheaper on this metric.
Which has a larger context window, ERNIE 5.1 or Hy3?+
Hy3 has the larger sourced context window. ERNIE 5.1 supports 131,072 and Hy3 supports 262,144.
Which performs better in benchmarks, ERNIE 5.1 or Hy3?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can ERNIE 5.1 or Hy3 be self-hosted?+
Hy3 is the only model in this pair currently marked as self-hostable. ERNIE 5.1 is not marked open weight; Hy3 is open weight.
Can ERNIE 5.1 and Hy3 understand images?+
ERNIE 5.1 is not documented with image input; Hy3 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, ERNIE 5.1 or Hy3?+
Neither has a larger sourced maximum output. ERNIE 5.1 is 65,536 and Hy3 is —.
Do ERNIE 5.1 and Hy3 support reasoning and tool use?+
ERNIE 5.1: reasoning and tool calling. Hy3: tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, ERNIE 5.1 or Hy3?+
ERNIE 5.1 has 1 sourced provider route; Hy3 has 2, so Hy3 has broader tracked availability.
Which offers better value, ERNIE 5.1 or Hy3?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.