Models

GLM 4.7 Flash (free) vs Grok 4.5

Compare GLM 4.7 Flash (free) from Z.AI and Grok 4.5 from Grok on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

Z.AIGLM 4.7 Flash (free)GrokGrok 4.5
Z.AI logo
GLM 4.7 Flash (free)
Z.AI · text → text

The glm-4.7-flash free model has usage restrictions to ensure stable service operation: a maximum of 5 requests per minute, no more than 500 requests per day, and a daily usage quota of 1 million tokens.

Input$0 /M
Output$0 /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 /M
Output$6 /M
Cache read$0.5 /M

Pricing & Specifications

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

GLM 4.7 Flash (free)
Grok 4.5
Input /M
$0
$2
Output /M
$0
$6
Cache read /M
-
$0.5
Context length
200,000
500,000
Max output
131,072
500,000
Time to First Token
14.2 s
3.3 s
Throughput
29.4 tok/s
40.6 tok/s
Modalities
text
textimage
Supported Parameters
thinkingtoolsstructured outputsfunction calling
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
January 19, 2026
July 2026

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-4.7-flash-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-4.7-flash-freegrok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
glm-4.7-flash-freegrok-4.5
1280136014401520
Overall
13681471
Coding
14231523
Math
13661479
Hard prompts
13871495
Instruction following
13511466
Multi-turn
13631476
Creative writing
13121451
Longer query
13731487
Chinese
14341512
English
13951476

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

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

GLM 4.7 Flash (free)
$0.00 /mo
Grok 4.5
$210 /mo

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

FAQ

How do their coding arena scores compare?

Grok 4.5: 1523; GLM 4.7 Flash (free): 1423 (LMArena coding leaderboard).

Which responds faster?

Grok 4.5: 3.3s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

GLM 4.7 Flash (free) accepts 200,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 131,072 tokens on GLM 4.7 Flash (free) and 500,000 tokens on Grok 4.5.

Which one generates tokens faster?

Grok 4.5 at 40.6 tok/s and GLM 4.7 Flash (free) at 29.4 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

GLM 4.7 Flash (free) accepts text input and supports thinking, tool calling, structured outputs and function calling; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call GLM 4.7 Flash (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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