GLM 5.1

Z.ai model details for pricing, context, and release tracking.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output
Model Specs
ProviderZ.ai
Model IDz-ai/glm-5.1
Prompt Price
per 1M tokens		$1.05
Completion Price
per 1M tokens		$3.5
Sample Workload Cost
1M input + 500K output		$2.8
Context Window202.75K
Release Date2026-04-07
Popularity RankUnranked
Daily DemandN/A

Estimate your workload cost

Estimate this model for your workload

Prices are normalized to USD per 1M tokens.
GLM 5.1 Calculating… Estimated monthly API cost
Unit prices $1.05 input / $3.5 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Model Introduction

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...

Best Fit

GLM 5.1 is best suited for general API evaluation.

Cost Example

A 1M input token plus 500K output token workload is estimated at $2.8.

Decision Shortcuts

Compare this model

Search head-to-head pages that include GLM 5.1 and review input price, output price, context, and sample workload cost.

Find comparisons

Cheaper alternatives

Start from models ranked by a standard cost estimate when budget is the first constraint.

Browse low-cost models

Popular Comparisons

Search all comparisons
ComparisonNewest Release
Anthropic Claude Haiku Latest vs GLM 5.12026-04-27
Anthropic Claude Sonnet Latest vs GLM 5.12026-04-27
🔥Claude 4.6 Opus vs GLM 5.12026-04-07
Claude Opus 4.6 (Fast) vs GLM 5.12026-04-07
NewClaude Opus 4.7 (Fast) vs GLM 5.12026-05-12
🔥Claude Opus 4.7 vs GLM 5.12026-04-16
Claude Opus Latest vs GLM 5.12026-04-21
🔥Claude Sonnet 4.6 vs GLM 5.12026-04-07
CoBuddy (free) vs GLM 5.12026-05-06
🔥DeepSeek V3.2 vs GLM 5.12026-04-07