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Grok 4.5 vs Hy4

Compare Grok 4.5 from Grok and Hy4 from Hunyuan on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GrokGrok 4.5HunyuanHy4
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
Hunyuan logo
Hy4
Hunyuan · text, image → text

Tencent Hy4 preview is a Mixture-of-Experts language model designed for coding, office analysis, and scientific research. With a 1M-token context window, it supports complex software development, long-document analysis, and multi-step workflows. Compared with Hy3 preview, it expands model scale and context capacity while strengthening performance on practical productivity tasks.

Input$0.8823 /M
Output$2.647 /M
Cache read$0.4412 /M

Pricing & Specifications

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

Grok 4.5
Hy4
Input /M
$2
$0.8823
Output /M
$6
$2.647
Cache read /M
$0.5
$0.4412
Context length
500,000
0
Max output
500,000
0
Time to First Token
1.6 s
-
Throughput
21.4 tok/s
-
Modalities
textimage
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
July 2026
November 4, 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.

grok-4.5hy4

Tokens / day

-

Requests / day

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Performance Past 3 Days

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

grok-4.5hy4

Throughput (tok/s)

-

TTFT (s)

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Uptime (%)

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LMArena Benchmarks

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

WebDev Arena
grok-4.5hy4
1500156016201680
Overall
15531631
React
15561653
HTML
15681620
Gaming
15871698
Simulations
15751701
Data analytics
15221553

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.

Hy4
$92.64 /mo
Grok 4.5
$210 /mo

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

FAQ

Which is cheaper: Grok 4.5, Hy4?

Hy4: $2.647/M output tokens; Grok 4.5: $6/M. Use the cost calculator above to estimate your own workload.

What inputs and capabilities does each model support?

Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context; Hy4 accepts text and image input.

Can I call Grok 4.5 and Hy4 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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