Updated Sep 29, 2025

Our Verdict

Claude Sonnet 4.5

Mistral Medium 3Runner-up

No community votes yet. On paper, Claude Sonnet 4.5 has the edge — newer, bigger context window, major provider backing.

Mistral Medium 3 is 7.5x cheaper per token — worth considering if cost matters.

Too close to call

Writing DNA

Style Comparison

Similarity

97%

Claude Sonnet 4.5 uses 7.6x more emoji

Claude Sonnet 4.5

Mistral Medium 3

64%Vocabulary57%

94wSentence Length17w

0.48Hedging0.73

4.9Bold8.6

8.0Lists6.5

0.45Emoji0.06

1.91Headings1.18

0.07Transitions0.15

Based on 20 + 15 text responses

vs

Ask them anything yourself

Claude Sonnet 4.5

Mistral Medium 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

Mistral Medium 3 vs MiniMax M2.5New provider

Mistral Medium 3 vs Aurora AlphaNew provider

Claude Sonnet 4.5 vs Gemini 2.5 Pro Preview 06-05New provider

Claude Sonnet 4.5vsMistral Medium 3

24 fights queued

Why Claude Sonnet 4.5?

1.5x more context200K

5 months newerSep 2025

Why Mistral Medium 3?

7.5x cheaper overall$0.40/M in · $2.00/M out

Claude Sonnet 4.5Mistral Medium 3

Input price

$3.00/M

$0.40/M

Output price

$15.00/M

$2.00/M

Context

200K

131K

Released

Sep 2025

May 2025

Favorites

Claude Sonnet 4.5Mistral Medium 3

Movie

2001: A Space Odyssey

2001: A Space Odyssey

The Shawshank Redemption

The Shawshank Redemption

Album

Kind of Blue

The Dark Side of the Moon

The Dark Side of the Moon

Book

Metamorphosis

Metamorphosis

Братья Карамазовы

Братья Карамазовы

Фёдор Михайлович Достоевский

City

Amsterdam

Kyoto

Game

Portal 2

Portal 2

Shooter, Puzzle4.6

The Legend of Zelda: Breath of the Wild

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

12 / 24

01

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025text

No, 9.11 is not greater than 9.9.

9.9 is greater than 9.11.

When comparing decimals, you can think of them as:

9.11 = 9 + 0.11
9.9 = 9 + 0.9 (or 9.90)

Since 0.90 > 0.11, we have 9.9 > 9.11.

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025text

To determine whether 9.11 is greater than 9.9, let's compare the two numbers step by step.

Compare the Whole Number Part:
- Both numbers have the same whole number part: 9.
Compare the Decimal Part:
- 9.11 can be written as 9.110 (adding a trailing zero for clarity).
- 9.9 can be written as 9.900 (adding trailing zeros for clarity).
Now, compare the decimal parts digit by digit from left to right:
- First Decimal Place (Tenths):
  - 9.110 has 1 in the tenths place.
  - 9.900 has 9 in the tenths place.
  - 1 < 9, so 9.110 is less than 9.900 at this point.
Since the first decimal place already shows that 9.11 is less than 9.9, we don't need to compare further.

Final Answer: [ oxed{ ext{No, } 9.11 ext{ is not greater than } 9.9.} ]

Try this prompt

Vote

2 / 24

02

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025text

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025text

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

Try this prompt

Vote

3 / 24

03

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025svg

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025svg

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

Try this prompt

Vote

4 / 24

04

Xbox Controller SVG Artimage generation

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

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025svg

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025svg

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

Try this prompt

Vote

5 / 24

05

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025text

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025text

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

Try this prompt

Vote

6 / 24

06

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025website

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025website

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

Try this prompt

Vote

Sponsored

7 / 24

07

Mario Level UI Recreationweb design

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

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025website

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025website

We can't display this one. It's not us. Well... it might be us.

The model was asked for a web page. It produced something else. We're not going to define what.

View raw output

# Super Mario Bros. Interactive Level

Here's a self-contained HTML page that recreates a classic Super Mario Bros. level with interactive elements. It includes Mario's movement, jumping, coin collection, enemy interactions, and a simple physics system.

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Super Mario Bros. Level</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #6b8cff;
            font-family: 'Press Start 2P', cursive;
            user-select: none;
        }

        #game-container {
            position: relative;
            width: 100vw;
            height: 100vh;
            overflow: hidden;
        }

        #game-canvas {
            background-color: #6b8cff;
            display: block;
        }

        #hud {
            position: absolute;
            top: 10px;
            left: 10px;
            color: white;
            font-size: 16px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            background-color: rgba(0, 0, 0, 0.3);
            padding: 5px 10px;
            border-radius: 5px;
        }

        #start-screen {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
            z-index: 10;
        }

        #start-screen h1 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
        }

        #start-screen p {
            font-size: 20px;
            margin-bottom: 30px;
        }

        #start-button {
            padding: 10px 20px;
            font-size: 20px;
            background-color: #ff0000;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
            transition: transform 0.2s;
        }

        #start-button:hover {
            transform: scale(1.05);
        }

        #game-over-screen {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
            z-index: 10;
        }

        #game-over-screen h1 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
        }

        #game-over-screen p {
            font-size: 20px;
            margin-bottom: 30px;
        }

        #restart-button {
            padding: 10px 20px;
            font-size: 20px;
            background-color: #ff0000;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
            transition: transform 0.2s;
        }

        #restart-button:hover {
            transform: scale(1.05);
        }

        #win-screen {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
            z-index: 10;
        }

        #win-screen h1 {
            font-size: 48px;

Try this prompt

Vote

8 / 24

08

Interactive Catan Boardweb design

Tests an AI's ability to create interactive web elements

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025website

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025website

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

Try this prompt

Vote

9 / 24

09

World Map SVGimage generation

Tests an AI's ability to create a detailed world map in SVG format

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025svg

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025svg

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

Try this prompt

Vote

10 / 24

10

Random Tailwind Webappweb design

Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025website

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025website

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

Try this prompt

Vote

11 / 24

11

Surprise Animal SVGimage generation

Generate SVG art of a randomly chosen animal in a setting of its choosing.

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025svg

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025svg

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

Try this prompt

Vote

12 / 24

12

Simple 7-Ingredient Recipeconversation

Generate a unique and simple recipe with common ingredients.

Claude Sonnet 4.5

Claude Sonnet 4.5

Anthropic · Sep 2025text

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

Try this prompt

Mistral Medium 3

Mistral Medium 3

Mistral · May 2025text

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

Try this prompt

Vote

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