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Gemini 3 Flash Preview Search vs Grok 4.5

Compare Gemini 3 Flash Preview Search from Google and Grok 4.5 from Grok on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GoogleGemini 3 Flash Preview SearchGrokGrok 4.5
+ Add model · 2/4
Google logo
Gemini 3 Flash Preview Search
Google · text, image, audio → text

Gemini-3-flash-preview-search integrates Google's official search functionality; the search feature incurs an additional separate fee log directly incorporated into the scoring, but the log details are not displayed; this will be fixed in the future to show the details; it only supports OpenAI-compatible format calls and does not support the Gemini SDK; for the Gemini native SDK, please directly set the official search parameters.

Input$0.50 /M
Output$3.00 /M
Details
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
Details

Pricing & Specifications

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

Gemini 3 Flash Preview Search
Grok 4.5
Input /M
$0.50
$2.00
Output /M
$3.00
$6.00
Cache read /M
$0.05
$0.50
Context length
1,048,576
500,000
Max output
1,048,576
500,000
Time to First Token
3.0 s
1.7 s
Throughput
186.6 tok/s
30.9 tok/s
Modalities
textimageaudio
textimage
Supported Parameters
thinkingwebtoolsfunction 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.

gemini-3-flash-preview-searchgrok-4.5

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

gemini-3-flash-preview-searchgrok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

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

Text
gemini-3-flash-preview-searchgrok-4.5
1420146015001540
Overall
14701473
Coding
15091523
Math
14761478
Hard prompts
14921495
Instruction following
14581466
Multi-turn
14771483
Creative writing
14491459
Longer query
14751485
Chinese
15111521
English
14751475
Vision
gemini-3-flash-preview-searchgrok-4.5
1240128013201360
Overall
12711282
OCR
12851295
Diagram
12961321
Homework
13141328
WebDev Arena
gemini-3-flash-preview-searchgrok-4.5
13801440150015601620
Overall
14371556
React
14301559
HTML
14401577
Gaming
14521586
Simulations
14171598
Data analytics
14131522

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.

Gemini 3 Flash Preview Search
$75.00 /mo
Grok 4.5
$210 /mo

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

FAQ

Which is cheaper: Gemini 3 Flash Preview Search, Grok 4.5?

Gemini 3 Flash Preview Search: $3.00/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: 1523; Gemini 3 Flash Preview Search: 1509 (LMArena coding leaderboard).

Which responds faster?

Grok 4.5: 1.7s 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?

Gemini 3 Flash Preview Search accepts 1,048,576 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 1,048,576 tokens on Gemini 3 Flash Preview Search and 500,000 tokens on Grok 4.5.

Which one generates tokens faster?

Gemini 3 Flash Preview Search at 186.6 tok/s and Grok 4.5 at 30.9 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Gemini 3 Flash Preview Search accepts text, image and audio input and supports thinking, web search, 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 Gemini 3 Flash Preview Search 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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