GLM 5.1

by Zhipu

Z.ai GLM 5.1 on DeepInfra with extended agentic reasoning

ReasoningToolsStructured output
Context window
203K
Max output
Input price
$1.05 /1M
Output price
$3.50 /1M

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#17 of 505 LLMs
TierFrontier
Output speed52 tok/s
First token0.98s
Intelligence Index51.4
Coding Index43.4
GPQA Diamond
87%
Humanity's Last Exam
28%
SciCode
44%
IFBench
76%
Long-context reasoning
62%
Terminal-Bench Hard
43%
τ²-Bench Telecom
98%

Available routes

The same GLM 5.1 runs on 2 different routes through the Opper gateway. Each route has its own data-handling posture.

ProviderRegionZero data retentionTrainingLoggingContractInputOutput
DeepInfraUSNo
Pending verification
PAYG$1.05$3.50
FireworksUSDefaultNo
None for open models by default — does not log or store prompt or generation data without explicit opt-in.
PAYG$1.40$4.40

Human review: Abuse-flagged only

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GLM 5.1 by Zhipu — pricing, benchmarks, hosting routes | Opper AI