Models

glm-5 vs grok-4.5

Output tokens cost $2.82 per million on glm-5 and $6.00 per million on grok-4.5. Input tokens cost $0.88 per million on glm-5 and $2.00 per million on grok-4.5. Cached input tokens are billed at $0.18 per million on glm-5 and $0.50 per million on grok-4.5. Context lengths are 202,752 tokens on glm-5 and 500,000 tokens on grok-4.5. Time to first token (TTFT) measured on AIHubMix is 1.3s on glm-5 and 2.3s on grok-4.5. Measured output throughput is 39.4 tok/s on glm-5 and 35.1 tok/s on grok-4.5. On the LMArena coding leaderboard glm-5 scores 1498 and grok-4.5 scores 1520.

Z.AIglm-5Grokgrok-4.5
Z.AI logo
glm-5
Z.AI · text → text

GLM-5 is an advanced, open-source large language model designed for developers tackling the toughest challenges. It excels at long-context reasoning, multi-step tool orchestration, and complex systems engineering, making it the ideal choice for powering sophisticated agents and applications that require high-level cognitive tasks.

Input$0.88 /M
Output$2.82 /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
grok-4.5
Input /M
$0.88
$2.00
Output /M
$2.82
$6.00
Cache read /M
$0.18
$0.50
Context length
202,752
500,000
Max output
0
500,000
Time to First Token
1.3 s
2.3 s
Throughput
39.4 tok/s
35.1 tok/s
Modalities
text
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputslong context
API Formats

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-5grok-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-5grok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

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

Text
glm-5grok-4.5
1420146015001540
Overall
14571469
Coding
14981520
Math
14431479
Hard prompts
14781493
Instruction following
14471465
Multi-turn
14731473
Creative writing
14451446
Longer query
14701485
Chinese
15181524
English
14711473
WebDev Arena
glm-5grok-4.5
1400146015201580
Overall
14301554
React
14211555
HTML
14431578
Gaming
15851585
Simulations
16031603
Data analytics
15201520

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-5
$95.04 /mo
grok-4.5
$210 /mo

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

FAQ

Which is cheaper: glm-5, grok-4.5?

glm-5: $2.82/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?

grok-4.5: 1520; glm-5: 1498 (LMArena coding leaderboard).

Which responds faster?

glm-5: 1.3s 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-5 accepts 202,752 and grok-4.5 accepts 500,000 input tokens.

Which one generates tokens faster?

glm-5 at 39.4 tok/s and grok-4.5 at 35.1 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-5 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 glm-5 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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