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Z AIReleased July 28, 2025

GLM-4.5

Z AI · Released July 28, 2025

Intelligence score

19

At a glance

Intelligence
19
Speed
—
Latency
—
Input price
$0.60per 1M tokens
Output price
$2.20per 1M tokens
Context window
130Ktokens
Parameters
355billions

Summary

Comparison summary

GLM-4.5 (Reasoning) scores 19 (estimated) on the Artificial Analysis Intelligence Index, placing it below average among other open weight models of similar size (median: 25). GLM-4.5 (Reasoning) costs $0.60 per 1M input tokens (somewhat higher than average, median: $0.59) and $2.20 per 1M output tokens (better than average, median: $2.20), based on the median across providers serving the model.

Specifications

Technical specifications

Model nameGLM-4.5
ProviderZ AI
Release dateJuly 28, 2025
Intelligence score19
Speed—
Latency (TTFT)—
Input price$0.60 / 1M tokens
Output price$2.20 / 1M tokens
Context window130,000 tokens
Parameters355B
ReasoningYes
Input modalitiestext
Output modalities—
Open weightsYes
LicenseMIT
API availability—
SourceModel Intelligence legacy profile: glm-4-5

Pricing

Token prices

Price per 1M tokens

GLM-4.5, as listed in the catalog record

Input $0.60 and output $2.20 per 1M tokens. Missing prices are hatched and marked "Not published".
  1. Input$0.60
  2. Output$2.20

Model Intelligence legacy profile: glm-4-5

FAQ · 18

Frequently asked questions

GLM-4.5 (Reasoning) was released on July 28, 2025.

GLM-4.5 (Reasoning) was created by Z AI.

GLM-4.5 (Reasoning) scores 19 (estimated) on the Artificial Analysis Intelligence Index, placing it below average among other open weight models of similar size (median: 25).

GLM-4.5 (Reasoning) costs $0.60 per 1M input tokens (somewhat higher than average, median: $0.59) and $2.20 per 1M output tokens (better than average, median: $2.20), based on the median across providers serving the model.

GLM-4.5 (Reasoning) costs $0.60 per 1M input tokens and $2.20 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 $0.76 per 1M tokens. Pricing may vary by provider.

Yes, GLM-4.5 (Reasoning) is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.

GLM-4.5 (Reasoning) supports text input.

GLM-4.5 (Reasoning) supports text output.

No, GLM-4.5 (Reasoning) does not support image input. It can only process text.

No, GLM-4.5 (Reasoning) is not multimodal. It only supports text input.

GLM-4.5 (Reasoning) has a context window of 130k tokens. This determines how much text and conversation history the model can process in a single request.

Yes, GLM-4.5 (Reasoning) is open weights. The model weights are publicly available and can be downloaded for self-hosting.

GLM-4.5 (Reasoning) has 355 billion parameters (32 billion active).

GLM-4.5 (Reasoning) is a Mixture of Experts (MoE) model with 355 billion total parameters, but only 32 billion active parameters are used during inference.

GLM-4.5 (Reasoning) is released under the MIT license. This license allows commercial use.

GLM-4.5 (Reasoning) achieves a score of 19 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.

Yes, GLM-4.5 (Reasoning) is available via API through 1 provider.

GLM-4.5 (Reasoning) is available through 1 API provider.