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Z AIReleased April 7, 2026

GLM-5.1

Z AI · Released April 7, 2026

Intelligence score

35

At a glance

Intelligence
35
Speed
54.3tokens/sec
Latency
1.80stime to first token
Input price
$1.39per 1M tokens
Output price
$4.40per 1M tokens
Context window
200Ktokens
Parameters
744billions

Summary

Comparison summary

GLM-5.1 (Non-reasoning) scores 35 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other open weight non-reasoning models of similar size (median: 17). GLM-5.1 (Non-reasoning) generates output at 54.3 tokens per second (based on the median across providers serving the model), which is below average compared to other open weight non-reasoning models of similar size (median: 58.3 t/s). GLM-5.1 (Non-reasoning) costs $1.39 per 1M input tokens (at the higher end, median: $0.60) and $4.40 per 1M output tokens (at the higher end, median: $2.40), based on the median across providers serving the model.

Specifications

Technical specifications

Model nameGLM-5.1
ProviderZ AI
Release dateApril 7, 2026
Intelligence score35
Speed54.3 tokens/sec
Latency (TTFT)1.80s
Input price$1.39 / 1M tokens
Output price$4.40 / 1M tokens
Context window200,000 tokens
Parameters744B
ReasoningNo
Input modalitiestext
Output modalities—
Open weightsYes
LicenseMit
API availability—
SourceModel Intelligence legacy profile: glm-5-1-non-reasoning

Pricing

Token prices

Price per 1M tokens

GLM-5.1, as listed in the catalog record

Input $1.39 and output $4.40 per 1M tokens. Missing prices are hatched and marked "Not published".
  1. Input$1.39
  2. Output$4.40

Model Intelligence legacy profile: glm-5-1-non-reasoning

FAQ · 20

Frequently asked questions

GLM-5.1 (Non-reasoning) was released on April 7, 2026.

GLM-5.1 (Non-reasoning) was created by Z AI.

GLM-5.1 (Non-reasoning) scores 35 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other open weight non-reasoning models of similar size (median: 17).

GLM-5.1 (Non-reasoning) generates output at 54.3 tokens per second (based on the median across providers serving the model), which is below average compared to other open weight non-reasoning models of similar size (median: 58.3 t/s).

GLM-5.1 (Non-reasoning) has a time to first token (TTFT) of 1.80s (based on the median across providers serving the model), which is better than average compared to other open weight non-reasoning models of similar size (median: 2.33s).

GLM-5.1 (Non-reasoning) costs $1.39 per 1M input tokens (at the higher end, median: $0.60) and $4.40 per 1M output tokens (at the higher end, median: $2.40), based on the median across providers serving the model.

GLM-5.1 (Non-reasoning) costs $1.39 per 1M input tokens and $4.40 per 1M output tokens (based on the median across providers serving the model). For a blended rate (7:2:1 cache hit/input/output ratio), this is $0.90 per 1M tokens. Pricing may vary by provider.

No, GLM-5.1 (Non-reasoning) is not a reasoning model. It provides direct responses without extended chain-of-thought reasoning.

GLM-5.1 (Non-reasoning) supports text input.

GLM-5.1 (Non-reasoning) supports text output.

No, GLM-5.1 (Non-reasoning) does not support image input. It can only process text.

No, GLM-5.1 (Non-reasoning) is not multimodal. It only supports text input.

GLM-5.1 (Non-reasoning) has a context window of 200k tokens. This determines how much text and conversation history the model can process in a single request.

Yes, GLM-5.1 (Non-reasoning) is open weights. The model weights are publicly available and can be downloaded for self-hosting.

GLM-5.1 (Non-reasoning) has 744 billion parameters (40 billion active).

GLM-5.1 (Non-reasoning) is a Mixture of Experts (MoE) model with 744 billion total parameters, but only 40 billion active parameters are used during inference.

GLM-5.1 (Non-reasoning) is released under the Mit license. This license allows commercial use.

GLM-5.1 (Non-reasoning) achieves a score of 35 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.

Yes, GLM-5.1 (Non-reasoning) is available via API through 8 providers.

GLM-5.1 (Non-reasoning) is available through 8 API providers.