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ERNIE 4.0 vs GLM 5.1

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for ERNIE 4.0 and GLM 5.1.

Baidu

ERNIE 4.0

ERNIE 4.0 (文心一言 4.0) is Baidu's most advanced large language model, representing the culmination of Baidu's decades of search and NLP expertise. Built on Baidu's proprietary knowledge-enhanced pre-training architecture, ERNIE 4.0 integrates deep understanding of Chinese language, culture, and domain-specific knowledge. It achieves GPT-4-class performance on comprehensive Chinese-language benchmarks spanning language understanding, reasoning, mathematics, and code generation. ERNIE 4.0 powers Baidu's Wenxin Yiyan consumer chatbot and is available via Baidu AI Cloud API for enterprise integrations.

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Zhipu AI

GLM 5.1

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

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Technical Specifications

SpecificationERNIE 4.0GLM 5.1
ProviderBaiduZhipu AI
Context Window128,000 tokens202,752 tokens
Agent Suitability87/100N/A
Time to First Token (TTFT)380 msN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-08-302026-04-07

API Pricing Comparison

Input Price per Million Tokens

ERNIE 4.0

$1.20

GLM 5.1

$0.97

Output Price per Million Tokens

ERNIE 4.0

$2.40

GLM 5.1

$3.04

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Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
N/Avs8800.0%
ERNIE 4.0
GLM 5.1
HumanEvalPython coding & logic synthesis
N/Avs8950.0%
ERNIE 4.0
GLM 5.1
MATHComplex mathematical problem solving
N/Avs7700.0%
ERNIE 4.0
GLM 5.1
GPQAGraduate-level expert reasoning
N/Avs5100.0%
ERNIE 4.0
GLM 5.1
HellaSwagCommonsense reasoning and inference
N/Avs8850.0%
ERNIE 4.0
GLM 5.1
MT-BenchMulti-turn conversation flow quality
N/Avs920.0%
ERNIE 4.0
GLM 5.1

ERNIE 4.0 Quirks & Gotchas

  • β–ΈSuperior Chinese-language understanding β€” best-in-class for China-market applications
  • β–ΈAPI requires Baidu Cloud account with Chinese phone verification

GLM 5.1 Quirks & Gotchas

No developer gotchas reported.