The Known Good Updated 25 Jul 2026
gemma-3-27b-it vs Z.ai: GLM 5 ·Google vs Z.ai

gemma-3-27b-it vs Z.ai: GLM 5 — head-to-head comparison

gemma-3-27b-it profile Z.ai: GLM 5 profile All comparisons
gemma-3-27b-it — Google
Quality
#48 of 61
37based on 3 of 6 evaluations
Known Good Index
Speed
unranked
Output tokens per second
Price
unranked
Blended per 1M tokens
Cache hit price
unranked
per 1M tokens
Context
unranked
tokens
Z.ai: GLM 5 — Z.ai
Quality
#19 of 61
77based on 4 of 6 evaluations
Known Good Index
Speed
#214 of 316
37.3
Output tokens per second
Price
#217 of 340
$1.35
Blended per 1M tokens
In $0.95 · Out $2.55
Cache hit price
#138 of 206
$0.20
per 1M tokens (−79%)
Context
#189 of 345
205k
tokens (~300 pages)
Summary

On the Known Good Index, gemma-3-27b-it scores 37 and Z.ai: GLM 5 scores 77 — a 40-point lead for Z.ai: GLM 5. They share 2 published evaluations, with gemma-3-27b-it ahead on 0 and Z.ai: GLM 5 ahead on 2.

Published pricing is tracked for Z.ai: GLM 5 only, at $1.35 per 1M tokens blended.

gemma-3-27b-it is open weights under Open weights (restricted use); Z.ai: GLM 5 is open weights under Open weights (unrestricted). 14 tracked hosts serve one or both.

Generated from tracked data on 25 Jul 2026 · how these comparisons are computed →

At a glance
Metricgemma-3-27b-itZ.ai: GLM 5
Known Good Index 37 based on 3 of 6 evaluations 77 based on 4 of 6 evaluations
Blended $/1M $1.35
Output tok/s 37
Context window 205k
Providers 0 14
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Quality

Known Good Index and the capability indices, side by side

IndicesComponents
Index scores

Each index is min-max normalised across tracked models and scaled 0–100 from published evaluations. We do not run these evaluations.

Metricgemma-3-27b-itZ.ai: GLM 5
Known Good Index 37 77
Coding Index 67
Mathematics Index 47 80
Science Index 44 92
Reasoning Index 40
Agentic Index 67
Openness Index 60 60
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = gemma-3-27b-it · marker = Z.ai: GLM 5 · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond49 / 88
MATH / AIME20 / 80

Right-hand figures read gemma-3-27b-it / Z.ai: GLM 5. gemma-3-27b-it leads on 0 of 2, Z.ai: GLM 5 on 2.

The Known Good

Arena Elo

Human preference rating from blind pairwise votes

Arena ratings

Elo from blind pairwise votes, ingested from Arena. Higher is better.

Metricgemma-3-27b-itZ.ai: GLM 5
Text Arena 1,358 1,445
Text Arena (style controlled) 1,366 1,457
The Known Good

Price & Cost

Published API pricing by token type

Per token typeCache discount
Published pricing

USD per 1M tokens. Blended is a 3:1 input:output mix. Live from OpenRouter, cross-checked against models.dev. Lower is better.

Metricgemma-3-27b-itZ.ai: GLM 5
Input $/1M $0.95
Output $/1M $2.55
Blended $/1M $1.35
Cache read $/1M $0.200
The Known Good
We publish blended price rather than cost-per-task. Cost-per-task requires token counts from an evaluation suite we do not run. Blended price is computed from published rates and is fully reproducible — see the pricing methodology.

Context Window

Maximum input accepted and maximum output emitted

Context and output limits

Provider-declared limits, from metadata via models.dev and OpenRouter. Higher is better.

Metricgemma-3-27b-itZ.ai: GLM 5
Context window 205k
Max output tokens 131k
The Known Good

Speed & Latency

Median throughput and time to first token across hosting providers

Output speedTime to first token
Throughput and latency

Medians across all tracked providers, derived from OpenRouter endpoint telemetry.

Metricgemma-3-27b-itZ.ai: GLM 5
Output tokens/s 37
Time to first token 2.5s
The Known Good

Providers

Which hosts serve each model, and at what price and speed

14 hosts
Full provider benchmarks →
Provider gemma-3-27b-it blendedgemma-3-27b-it tok/s Z.ai: GLM 5 blendedZ.ai: GLM 5 tok/s
Amazon Bedrock · first party $1.55 109
GMICloud $0.93 69
Chutes $1.35 48
Baidu · first party $1.08 43
Parasail $1.55 42
Phala $1.77 38
Novita $1.55 36
StreamLake $0.93 35
Z.AI · first party $1.55 33
Venice $1.55 32
DeepInfra $0.97 29
SiliconFlow $1.35 29
AtlasCloud $1.50 26
DigitalOcean $1.16 8

Per-host pricing and telemetry from OpenRouter. A dash means that host does not serve that model.

The Known Good
Sources for this page
Pricing & providers — OpenRouter Metadata — models.dev Benchmarks — Epoch AI (CC-BY 4.0)Elo — Arena Full attribution →