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z-ai

glm-5.1

Enhanced GLM-5 release with improved reasoning and tool-use performance.

z-ai 198K context ★ Featured
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Value rank

#21 of 23

intelligence per dollar in our catalogue

Context rank

#4 tied

198K token window

Agentic strength

98%

tau2-bench tool-use success

Benchmarks

Independent scores by Artificial Analysis, compared with the strongest models in our catalogue.

Intelligence index

glm-5.2
51.1
minimax-m3
44.4
deepseek-v4-pro
44.3
kimi-k2.6
42.8
glm-5.1
40.2

Coding index

glm-5.2
50.7
deepseek-v4-pro
47.5
kimi-k2.6
47.1
glm-5.1
43.4
minimax-m3
43.4

Agentic (tau2-bench)

glm-5.1
97.7%
deepseek-v4-pro
96.2%
kimi-k2.6
95.9%
minimax-m3
88.9%

Best for

Where this model earns its keep.

Agentic pipelines and tool use Coding and engineering Prompt-cached workloads

The numbers

Pricing is live from our platform. Prices per 1M tokens, zero data retention on every request.

Input price$1.40
Cache read price$0.35
Output price$4.40
Context window198K tokens
Intelligence / coding index40.2 / 43.4
Agentic: tau2 / terminal-bench98% / 43%
GPQA / MMLU-Pro87% / -

Or consider

Close alternatives in the catalogue.

deepseek-v4-flash

Intelligence 40.3 · agentic 95%

glm-5

Intelligence 39.5 · agentic 98%

kimi-k2.7-code

Intelligence 41.9 · agentic -

Quick start

OpenAI-compatible. Switch in one line.

# pip install openai
client = OpenAI(base_url="https://api.tensorx.ai/v1", api_key="tsx-...")
r = client.chat.completions.create(
    model="z-ai/glm-5.1",
    messages=[{"role": "user", "content": "Hello"}],
)

Benchmark data from the Artificial Analysis Intelligence Index v4.1, measured independently. Pricing live from the TensorX platform. All inference on EU-sovereign infrastructure with zero data retention.