AI Index

GLM-5vsGLM-5.1

Both language models, compared at each maker’s own API list prices. Every figure links to its source.

Compare at your usage

Every model priced for the same request
Prompt per request
Cache hits

8,000 tokens in, 2,000 out

GLM-5 on Z.ai APIGLM-5.1 on Z.ai API
Rate appliedBase rateBase rate
Inputper 1M tokens$1.00 $1.40
Cache readper 1M tokens$0.20 $0.26
Outputper 1M tokens$3.20 $4.40
Cost per request$0.0144$0.020
Per 1,000 requests$14.40$20.00
  • GLM-5 Pricing · as of Nov 1, 2026
  • GLM-5.1 Pricing · as of Nov 1, 2026

Every model is priced for the same request at its maker’s own list prices (each with its source and date), so bold marks the cheapest. A model that can’t serve the request is named, not ranked; a condition its seller doesn’t price says which rate was used.

Cost per request as prompts grow

2K tokens out, list price on each maker’s API. A line ends at the model’s context window.

0$0.10$0.20$0.300250K500K750K1Mprompt tokens per request8KGLM-5.1$0.020 at 8KGLM-5$0.0144 at 8K
  • GLM-5 · Z.ai API
  • GLM-5.1 · Z.ai API

Where each stands among all scored models

Each line runs from the lowest to the highest score on the board; the tick is the median.

Epoch Capabilities Index#73 vs #58 of 118GLM-5.1: 150.7GLM-5: 146.4LMArena Text#44 vs #38 of 163GLM-5.1: 1,465GLM-5: 1,457LMArena Text · Coding#55 vs #39 of 163GLM-5.1: 1,513GLM-5: 1,498LMArena Text · Chinese#31 vs #35 of 161GLM-5.1: 1,513GLM-5: 1,516
  • GLM-5
  • GLM-5.1

Key differences

GLM-5GLM-5.1
InputMaker’s official API · global · USD
$1.00 / 1M tokens Pricing · as of Nov 1, 2026
$1.40 / 1M tokens Pricing · as of Nov 1, 2026
OutputMaker’s official API · global · USD
$3.20 / 1M tokens Pricing · as of Nov 1, 2026
$4.40 / 1M tokens Pricing · as of Nov 1, 2026
InputMaker’s official API · china · CNY
¥4.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥6.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
OutputMaker’s official API · china · CNY
¥18.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥24.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
Cache readMaker’s official API · global · USD
$0.20 / 1M tokens Pricing · as of Nov 1, 2026
$0.26 / 1M tokens Pricing · as of Nov 1, 2026
InputMaker’s official API · china · CNY · Prompts over 32K tokens
¥6.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥8.00 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026

These differences use verified vendor specifications or each maker’s official API on the same region, currency, meter and billing conditions. Different conditions remain side by side in the full table; they do not establish which model is cheaper. Declared features describe support, not measured quality or a recommendation. Missing evidence does not mean a feature is unsupported.

Full comparison

GLM-5 Zhipu AI GLM-5.1 Zhipu AI
Overview
ReleasedFeb 12, 2026 Apr 7, 2026
Open weightsYes —
Specs
Context200K 200K
Max output128K 128K
Input modalitiesText Text
Output modalitiesText Text
ReasoningYes Yes
Reasoning can be offYes Yes
Tool useYes Yes
Structured outputYes Yes
Pricing · per 1M tokens
Input price$1.00 $1.40
Output price$3.20 $4.40
Cache read price$0.20 $0.26
Blended price (3 input : 1 output)$1.55 $2.15
Cited scores
Epoch Capabilities Index146.4 150.7
LMArena Text1,457 1,465
LMArena Text · Coding1,498 1,513
LMArena Text · Chinese1,516 1,513
Epoch AI · GPQA Diamond87.8% 89.9%
Epoch AI · FrontierMath Tiers 1–3— 36.8%
Epoch AI · SWE-bench Verified72.1% 74.2%

Headline prices may come from different channels, regions or tiers. Check each source before choosing a model; missing facts stay blank.

Model details and sources

Cited scores