A Mixture-of-Experts model that activates only 4B parameters per inference,delivering high-performance reasoning with a fraction of the memory cost - idealfor cost-efficient, high-throughput server deployments.
Gemma 4 26B A4B It vs Grok 4.5
Output tokens cost $0.40 per million on Gemma 4 26B A4B It and $6.00 per million on Grok 4.5. Input tokens cost $0.14 per million on Gemma 4 26B A4B It and $2.00 per million on Grok 4.5. Context lengths are 262,100 tokens on Gemma 4 26B A4B It and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 0.5s on Gemma 4 26B A4B It and 1.4s on Grok 4.5. Measured output throughput is 21.7 tok/s on Gemma 4 26B A4B It and 27.7 tok/s on Grok 4.5.
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.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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.
Tokens / day
Requests / day
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
Cost calculator
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Gemma 4 26B A4B It, Grok 4.5?
Gemma 4 26B A4B It: $0.40/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
Gemma 4 26B A4B It: 0.5s 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?
Gemma 4 26B A4B It accepts 262,100 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 131,100 tokens on Gemma 4 26B A4B It and 500,000 tokens on Grok 4.5.
Which one generates tokens faster?
Grok 4.5 at 27.7 tok/s and Gemma 4 26B A4B It at 21.7 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Can I call Gemma 4 26B A4B It 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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