Models

Coding GLM 5.1 vs Grok 4.5

Output tokens cost $0.22 per million on Coding GLM 5.1 and $6.00 per million on Grok 4.5. Input tokens cost $0.06 per million on Coding GLM 5.1 and $2.00 per million on Grok 4.5. Cached input tokens are billed at $0.06 per million on Coding GLM 5.1 and $0.50 per million on Grok 4.5. On the LMArena coding leaderboard Coding GLM 5.1 scores 1524 and Grok 4.5 scores 1523.

Z.AICoding GLM 5.1GrokGrok 4.5
Z.AI logo
Coding GLM 5.1
Z.AI · text → text

Only supports OpenAI-compatible formats.

Input$0.06 /M
Output$0.22 /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.

Coding GLM 5.1
Grok 4.5
Input /M
$0.06
$2.00
Output /M
$0.22
$6.00
Cache read /M
$0.06
$0.50
Context length
0
500,000
Max output
0
500,000
Time to First Token
-
1.7 s
Throughput
-
25.4 tok/s
Modalities
text
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
-
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.

coding-glm-5.1grok-4.5

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

coding-glm-5.1grok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

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

Text
coding-glm-5.1grok-4.5
1420146015001540
Overall
14701472
Coding
15231524
Math
14761478
Hard prompts
14951496
Instruction following
14651466
Multi-turn
14771487
Creative writing
14491458
Longer query
14851487
Chinese
15111516
English
14751487
WebDev Arena
coding-glm-5.1grok-4.5
1500154015801620
Overall
15231556
React
15201559
HTML
15201577
Gaming
15861586
Simulations
15981598
Data analytics
15221522

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.

Coding GLM 5.1
$6.90 /mo
Grok 4.5
$210 /mo

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

FAQ

Which is cheaper: Coding GLM 5.1, Grok 4.5?

Coding GLM 5.1: $0.22/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Coding GLM 5.1: 1524; Grok 4.5: 1523 (LMArena coding leaderboard).

What inputs and capabilities does each model support?

Coding GLM 5.1 accepts text input and supports thinking, tool calling, function calling and structured outputs; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call Coding GLM 5.1 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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