Updated Nov 18, 2025

Our Verdict

Gemini 3 Pro Preview

Grok 3

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

Writing DNA

Style Comparison

Similarity

93%

Grok 3 uses 3.9x more emoji

Gemini 3 Pro Preview

Grok 3

58%Vocabulary49%

17wSentence Length18w

0.37Hedging0.94

7.7Bold2.5

4.8Lists3.0

0.00Emoji0.04

0.90Headings0.65

0.25Transitions0.08

Based on 23 + 17 text responses

vs

Ask them anything yourself

Gemini 3 Pro Preview

Grok 3

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026

Free preview13 of 58 slides

Download the free preview or get all 58 slides for $49

FAQ

Common questions

Keep going

Gemini 3 Pro Preview vs OpenAI o3New provider

Gemini 3 Pro Preview vs Llama 4 MaverickNew provider

Gemini 3 Pro Preview vs Claude Opus 4New provider

Gemini 3 Pro PreviewvsGrok 3

45 fights queued

Why Gemini 3 Pro Preview?

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified76.2% vs 63.8%

9 months newerNov 2025

Why Grok 3?

Dead even. This one's a coin flip.

Gemini 3 Pro PreviewGrok 3

Context

—

128K

Released

Nov 2025

Feb 2025

Benchmarks1 common

SWE-bench Verified

76.2%+16.3%

63.8%

Favorites

Gemini 3 Pro PreviewGrok 3

Movie

The Matrix

The Matrix

The Matrix

The Matrix

Album

The Dark Side

Dark Side Of The Moon

Dark Side Of The Moon

Book

The Hitch Hiker's Guide to the Galaxy

The Hitch Hiker's Guide to the Galaxy

Nineteen Eighty-Four

Nineteen Eighty-Four

City

Kyoto

Tokyo

Game

Tetris (1984)

Tetris (1984)

Portal

Portal

Action, Puzzle4.5

12 / 45

01

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

2 / 45

02

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

3 / 45

03

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

4 / 45

04

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

5 / 45

05

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

6 / 45

06

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

Sponsored

7 / 45

07

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

8 / 45

08

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

9 / 45

09

Realistic AI Interviewconversation

Tests an AI's ability to simulate personalities and predict future trends

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

10 / 45

10

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

11 / 45

11

Minimalist Landing Pageweb design

Tests an AI's ability to generate a complete, working landing page

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025website

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025website

Try this prompt

Vote

12 / 45

12

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

Gemini 3 Pro Preview

Gemini 3 Pro Preview

Google · Nov 2025website

Try this prompt

Grok 3

Grok 3

Xai · Feb 2025website

Try this prompt

Vote

This matchup has more rounds

33+ more head-to-head results. Free. Not a trick.

Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy