Models

glm-5.2-free vs grok-4.5

Context lengths are 128,000 tokens on glm-5.2-free and 500,000 tokens on grok-4.5.

Z.AIglm-5.2-freeGrokgrok-4.5
Z.AI logo
glm-5.2-free
Z.AI · text → text

GLM 5.2 is a large-scale reasoning model developed by Z Ai that supports text input and output. Featuring a 128,000-token context window, this model is designed to handle complex, data-heavy tasks. It is exceptionally well-suited for long-horizon agent workflows and project-level software engineering.

Input$0.00 /M
Output$0.00 /M
Grok logo
grok-4.5
Grok · text, image → text

Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.

Input$2.00 /M
Output$6.00 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

glm-5.2-free
grok-4.5
Input /M
$0.00
$2.00
Output /M
$0.00
$6.00
Cache read /M
$0.00
$0.50
Context length
128,000
500,000
Max output
0
500,000
Time to First Token
-
2.2 s
Throughput
-
25.3 tok/s
Modalities
text
textimage
Supported Parameters
reasoninglong context
thinkingtoolsfunction callingstructured outputslong context
API Formats
chat_completions

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

glm-5.2-freegrok-4.5

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

glm-5.2-freegrok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

Estimate your monthly bill for the same workload on each model.

glm-5.2-free
$0.00 /mo
grok-4.5
$210 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

How large is each context window?

glm-5.2-free accepts 128,000 and grok-4.5 accepts 500,000 input tokens.

What inputs and capabilities does each model support?

glm-5.2-free accepts text input and supports reasoning and long context; grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call glm-5.2-free and grok-4.5 with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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