GLM-5.1

Z AIOpen weights203k context

GLM-5.1 is an open-weights model from Z AI with a 203k-token context window. 5 providers list it, from $1.38 per million input tokens and $4.40 per million output tokens (Novita).

Maker
Z AI
Licence
Open weights
Context window
203k
Providers listed
5
Lowest input, per 1M
$1.38
Lowest output, per 1M
$4.40

Providers serving GLM-5.1

Cheapest first, by the blended rate of three input tokens to one output token. Prices in US dollars per million tokens, as of 26 Oct 2026.

ProviderInputOutputContextToolsJSON modeOpenAI-compatibleModel ID
Novita
$1.38$4.40205kYesYesYeszai-org/glm-5.1
Alibaba Cloud
$1.40$4.40203kYesYes—glm-5.1
FriendliAI
$1.40$4.40203kYesYesYeszai-org/GLM-5.1
GMI (FP8)
$1.40$4.40203kYesYesYeszai-org/GLM-5.1-FP8
Nebius
$1.40$4.40203kYes——GLM-5.1

Benchmark scores

Published scores only, each linked to its source. Compare every model in Bench rankings

BenchmarkScore
GPQA Diamond
PhD-level scientific reasoning
89.9%
APEX-Agents
Agentic office work
40.9%

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