The Known Good Updated 25 Jul 2026
DeepSeek: DeepSeek V3 0324 vs Z.ai: GLM 5.1 ·DeepSeek vs Z.ai

DeepSeek: DeepSeek V3 0324 vs Z.ai: GLM 5.1 — head-to-head comparison

DeepSeek: DeepSeek V3 0324 profile Z.ai: GLM 5.1 profile All comparisons
DeepSeek: DeepSeek V3 0324 — DeepSeek
Quality
#35 of 61
60based on 3 of 6 evaluations
Known Good Index
Speed
#257 of 316
26.1
Output tokens per second
Price
#133 of 340
$0.48
Blended per 1M tokens
In $0.27 · Out $1.12
Cache hit price
#118 of 206
$0.14
per 1M tokens (−50%)
Context
#224 of 345
164k
tokens (~300 pages)
Z.ai: GLM 5.1 — Z.ai
Quality
#12 of 61
88based on 3 of 6 evaluations
Known Good Index
Speed
#153 of 316
53.6
Output tokens per second
Price
#221 of 340
$1.48
Blended per 1M tokens
In $0.97 · Out $3.04
Cache hit price
#136 of 206
$0.18
per 1M tokens (−81%)
Context
#195 of 345
205k
tokens (~300 pages)
Summary

On the Known Good Index, DeepSeek: DeepSeek V3 0324 scores 60 and Z.ai: GLM 5.1 scores 88 — a 28-point lead for Z.ai: GLM 5.1. They share 2 published evaluations, with DeepSeek: DeepSeek V3 0324 ahead on 0 and Z.ai: GLM 5.1 ahead on 2.

Blended pricing is $0.48 per 1M tokens for DeepSeek: DeepSeek V3 0324 and $1.48 for Z.ai: GLM 5.1 — DeepSeek: DeepSeek V3 0324 is about 3.1× cheaper.

Throughput is 26 tokens per second for DeepSeek: DeepSeek V3 0324 and 54 for Z.ai: GLM 5.1, with time to first token at 1.1s and 1.9s. DeepSeek: DeepSeek V3 0324 accepts 164k tokens of context against 205k.

DeepSeek: DeepSeek V3 0324 is open weights; Z.ai: GLM 5.1 is proprietary. 19 tracked hosts serve one or both, and 4 serve both.

Generated from tracked data on 26 Jul 2026 · how these comparisons are computed →

At a glance
MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Known Good Index 60 based on 3 of 6 evaluations 88 based on 3 of 6 evaluations
Blended $/1M $0.48 $1.48
Output tok/s 26 54
Context window 164k 205k
Providers 4 19
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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.

MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Known Good Index 60 88
Mathematics Index 57 92
Science Index 67 89
Reasoning Index 65
Agentic Index 82
Openness Index 100 5
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = DeepSeek: DeepSeek V3 0324 · marker = Z.ai: GLM 5.1 · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond68 / 85
MATH / AIME38 / 92

Right-hand figures read DeepSeek: DeepSeek V3 0324 / Z.ai: GLM 5.1. DeepSeek: DeepSeek V3 0324 leads on 0 of 2, Z.ai: GLM 5.1 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.

MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Text Arena 1,375 1,465
Text Arena (style controlled) 1,396 1,470
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.

MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Input $/1M $0.27 $0.97
Output $/1M $1.12 $3.04
Blended $/1M $0.48 $1.48
Cache read $/1M $0.135 $0.179
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.

MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Context window 164k 205k
Max output tokens 66k 128k
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.

MetricDeepSeek: DeepSeek V3 0324Z.ai: GLM 5.1
Output tokens/s 26 54
Time to first token 1.1s 1.9s
The Known Good

Providers

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

19 hosts · 4 serve both
Full provider benchmarks →
Provider DeepSeek: DeepSeek V3 0324 blendedDeepSeek: DeepSeek V3 0324 tok/s Z.ai: GLM 5.1 blendedZ.ai: GLM 5.1 tok/s
Crusoe $0.75 36 $2.00 91
Novita $0.48 29 $2.13 52
SiliconFlow $0.44 21 $1.83 63
DeepInfra $0.41 20 $1.66 61
CoreWeave $2.15 125
Friendli $2.15 107
Fireworks $2.15 73
Parasail $2.15 73
Venice $2.37 69
GMICloud $1.50 63
Wafer $1.55 54
Baidu · first party $1.50 54
AtlasCloud $1.94 44
Chutes $1.50 40
Phala $1.96 40
Z.AI · first party $2.15 38
Nebius $2.15 24
StreamLake $1.48 22
DigitalOcean $1.81 18

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 →