Models

Grok 4.5 vs Qwen3.8 Flash

Compare Grok 4.5 from Grok and Qwen3.8 Flash from Qwen on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GrokGrok 4.5QwenQwen3.8 Flash
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
Qwen logo
Qwen3.8 Flash
Qwen · text → text

Qwen3.8 Flash is Alibaba Cloud Qwen’s flagship native vision-language model for coding, office tasks, long-context reasoning, and agent workflows. It supports a 1M-token context, 128K output, web access, and tool calling. Compared with Qwen3.7-Plus, Qwen3.8-Flash significantly reduces training and inference costs—the training overhead is only about one-ninth of the former—while offering stronger capabilities on coding and office tasks.

Input$0.14 /M
Output$0.43 /M

Pricing & Specifications

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

Grok 4.5
Qwen3.8 Flash
Input /M
$2.00
$0.14
Output /M
$6.00
$0.43
Cache read /M
$0.50
$0.01
Context length
500,000
1,000,000
Max output
500,000
128,000
Time to First Token
2.8 s
14.8 s
Throughput
32.6 tok/s
27.8 tok/s
Modalities
textimage
text
Supported Parameters
thinkingtoolsfunction callingstructured outputslong context
toolsfunction callingstructured outputsweblong contextthinking
API Formats
Released
July 2026
August 3, 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-4.5qwen3.8-flash

Tokens / day

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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-4.5qwen3.8-flash

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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Cost calculator

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

Qwen3.8 Flash
$14.91 /mo
Grok 4.5
$210 /mo

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

FAQ

Which is cheaper: Grok 4.5, Qwen3.8 Flash?

Qwen3.8 Flash: $0.43/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.

Which responds faster?

Grok 4.5: 2.8s 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?

Grok 4.5 accepts 500,000 and Qwen3.8 Flash accepts 1,000,000 input tokens. Maximum output per request is 500,000 tokens on Grok 4.5 and 128,000 tokens on Qwen3.8 Flash.

Which one generates tokens faster?

Grok 4.5 at 32.6 tok/s and Qwen3.8 Flash at 27.8 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

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; Qwen3.8 Flash accepts text input and supports tool calling, function calling, structured outputs, web search, long context and thinking.

Can I call Grok 4.5 and Qwen3.8 Flash 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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