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GLM 5.1

byZ.ai

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...

Input Price$1.40/1M tokens
Output Price$4.40/1M tokens
Intelligence51.4
Coding43.4

Specifications

Technical details and pricing.

ProviderZ.ai
Context Window202,752 tokens
Release DateApr 7, 2026
ModalitiesText

Benchmarks

7 benchmark scores from Artificial Analysis.

GPQA86.8%
HLE28.0%
SciCode43.8%
LCR62.3%
IFBench76.3%
Tau297.7%
TerminalBench Hard43.2%

Composite Indices

Intelligence, Coding, Math

Standard Benchmarks

Academic and industry benchmarks

Frequently Asked Questions

What is GLM 5.1 good for?

Use GLM 5.1 for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does GLM 5.1 cost?

Pricing is based on usage. Current rates are $1.40/1M tokens for input and $4.40/1M tokens for output.

Can I try GLM 5.1 for free?

Yes. You can start a chat instantly and test the model before deciding on a plan.

Does GLM 5.1 support images or audio?

GLM 5.1 focuses on text-based tasks.

Benchmarks and pricing are sourced from Artificial Analysis where available. OpenRouter specs are used as a fallback.

Customer Support