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GLM-5.1

Zhipu AI
Model overview

GLM-5.1

GLM-5.1 flagship model from Z.AI documentation.

general LLMreasoningcodinglong contextchatcode generationsoftware engineering agententerprise access
CompareCompanyRankingsPublic signals
Representative version

GLM-5.1

CompanyZhipu AI
ReleaseNot disclosed
Release typeModel release
Parameters753.9B
ArchitectureNot disclosed
Context200,000
Input modalitiestext / code
Output modalitiestext / code
Tool use / function callingNot disclosed
Structured output / reasoningConfirmed: Reasoning
Vision / audio / videoNot disclosed
Open weights / LicenseWeight status not disclosed / license not disclosed
zhipu-glm-5-1-phase-3-5 · License source pending verification
Vendor APIAvailable
zai-org/GLM-5.1 Hugging Face model cardzhipu-glm-5-1-phase-3-5 · 2026-05-25
OpenRouterOpenRouter listed
PricingOpenRouter · 2026-07-15: $0.966 / $3.036
input / output, per 1M tokens
BenchmarkLMArena 4 rows
Public signals1 model review / 1 activity snapshot
Use casesassistant chat / code generation / software engineering agent / enterprise API
Claim evidenceRelease eventzai-org/GLM-5.1 Hugging Face model cardGLM-5.1
Model specs / weightsZ.AI GLM-5.1 documentationGLM-5.1 · GLM-5.1
OpenRouter

Pricing / context / availability

OpenRouterOpenRouter listed
OpenRouter listingz-ai/glm-5.1
Mapped versionGLM-5.1
zhipu-glm-5-1-phase-3-5
PricingOpenRouter · 2026-07-15: $0.966 / $3.036
input / output, per 1M tokens
Context202752
Speed/LatencyNo reliable public source
Snapshot time2026-07-15T20:11:41.551Z
SourceView source
Benchmark

Ranking evidence

SourceTaskRankScoreSampleTimeLink
LMArenaWebDev51,530.983,6092026-05-07View source
LMArenaCoding91,524.662,7502026-05-07View source
LMArenaReasoning / hard prompts161,493.616,6252026-05-07View source
LMArenaText overall191,471.2711,3492026-05-07View source
Public activity counters

Cumulative Hugging Face model-card downloads / likes / spaces

PlatformEntryDownloadsLikesSpacesTimeSource
huggingfacezai-org/GLM-5.188,4801,835802026-07-15T20:11:41.551ZView source
Model reviews

User reviews and public snapshot summaries

Hugging Face

Bracket not closed when writing code

Trusted model reviewNegativeBug / reliability / Output quality
Verify source
Evidence gaps

Public display boundary

Release date not disclosedSpeed/latency not disclosed