z-aiListed Apr 3, 2026

Z.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...

Context window204.8K
Max output128K
Provider endpoints17
Benchmark results0
Measured performance

Benchmark results

All leaderboards ↗
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No published results in this index yet

Scores appear here when an evaluation matches this exact model.

Access & cost

Prices across providers

17 quotes

Your token mix

USD · listed token rates

ExperientialStandard list rate
$1.725
Baidu · via OpenRouterbaidu/fp8 · quantization=fp8
$1.7225
StreamLake · via OpenRouterstreamlake/fp8 · quantization=fp8
$1.725
Chutes · via OpenRouterchutes/fp8 · quantization=fp8
$1.75
SiliconFlow · via OpenRoutersiliconflow/fp8 · quantization=fp8
$2.125
AtlasCloud · via OpenRouteratlas-cloud/fp8 · quantization=fp8
$2.25
Alibaba · via OpenRouteralibaba/fp8 · quantization=fp8
$2.375
Novita · via OpenRouternovita/fp8 · quantization=fp8
$2.48
Nebius · via OpenRouternebius/fp8 · quantization=fp8
$2.50
GMICloud · via OpenRoutergmicloud/fp8 · quantization=fp8
$2.50
Z.AI · via OpenRouterz-ai/fp8 · quantization=fp8
$2.50
Venice · via OpenRoutervenice/fp8 · quantization=fp8
$2.5025

OpenRouter

Catalog quote
Input
$0.966
Output
$3.036
Cached input
$0.1794
USD / 1M tokens
204.8K context128K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1

deepinfra

via Hugging Face
Input
$1.05
Output
$3.50
USD / 1M tokens
202.8K contextPrice source ↗Checked Oct 17, 2026
Endpoint IDzai-org/GLM-5.1

Experiential

Standard list rate

Input
$0.966
Output
$3.036
Cached input
$0.1794
USD / 1M tokens

Catalog list rate. Plan allowances and temporary discounts are separate.

204.8K context128K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDglm-5.1

Baidu

via OpenRouter

baidu/fp8 · quantization=fp8

Input
$0.9646
Output
$3.0316
Cached input
$0.1791
USD / 1M tokens

Source discount 31.1%; rates as published

202.8K context131.1K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::baidu/fp8

StreamLake

via OpenRouter

streamlake/fp8 · quantization=fp8

Input
$0.966
Output
$3.036
Cached input
$0.1794
USD / 1M tokens

Source discount 31%; rates as published

200K context128K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::streamlake/fp8

Chutes

via OpenRouter

chutes/fp8 · quantization=fp8

Input
$0.98
Output
$3.08
Cached input
$0.098
USD / 1M tokens
202.8K context65.5K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::chutes/fp8

SiliconFlow

via OpenRouter

siliconflow/fp8 · quantization=fp8

Input
$1.19
Output
$3.74
Cached input
$0.60
USD / 1M tokens
204.8K context131.1K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::siliconflow/fp8

Phala

via OpenRouter

phala

Input
$1.21
Output
$4.20
Cached input
$0.60
USD / 1M tokens
202.8K context128K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::phala

AtlasCloud

via OpenRouter

atlas-cloud/fp8 · quantization=fp8

Input
$1.26
Output
$3.96
Cached input
$0.234
USD / 1M tokens
202.8K context182.5K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::atlas-cloud/fp8

Alibaba

via OpenRouter

alibaba/fp8 · quantization=fp8

Input
$1.33
Output
$4.18
Cached input
$0.247
USD / 1M tokens

Max prompt 169984 tokens

202.7K context131.1K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::alibaba/fp8

Novita

via OpenRouter

novita/fp8 · quantization=fp8

Input
$1.38
Output
$4.40
Cached input
$0.26
USD / 1M tokens
204.8K context131.1K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::novita/fp8

Nebius

via OpenRouter

nebius/fp8 · quantization=fp8

Input
$1.40
Output
$4.40
USD / 1M tokens
202.8K context182.5K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::nebius/fp8

GMICloud

via OpenRouter

gmicloud/fp8 · quantization=fp8

Input
$1.40
Output
$4.40
Cached input
$0.26
USD / 1M tokens
202.8K context182.5K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::gmicloud/fp8

Friendli

via OpenRouter

friendli

Input
$1.40
Output
$4.40
Cached input
$0.26
USD / 1M tokens
202.8K context182.5K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::friendli

Z.AI

via OpenRouter

z-ai/fp8 · quantization=fp8

Input
$1.40
Output
$4.40
Cached input
$0.26
USD / 1M tokens
202.8K context131.1K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::z-ai/fp8

Venice

via OpenRouter

venice/fp8 · quantization=fp8

Input
$1.4014
Output
$4.4044
Cached input
$0.2603
USD / 1M tokens

Source discount 9%; rates as published

200K context80K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDz-ai/glm-5.1::venice/fp8

Model specifications

Developer
z-ai
Modality
Language
Context
204,800 tokens
Maximum output
128,000 tokens
Weights
Open weights
Provider listed
Apr 3, 2026
First discovered
Oct 16, 2026

Exact identities

  • openrouterz-ai/glm-5.1
  • huggingfacezai-org/GLM-5.1
  • experientialglm-5.1

Sources

Updated Oct 17, 2026

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