Updated Feb 17, 2026

Our Verdict

Claude Sonnet 4.6

OpenAI o4 Mini HighRunner-up

No community votes yet. On paper, Claude Sonnet 4.6 has the edge — bigger model tier, newer, bigger context window.

OpenAI o4 Mini High is 3.4x cheaper per token — worth considering if cost matters.

Slight edge

Writing DNA

Style Comparison

Similarity

50%

Claude Sonnet 4.6 uses 507.4x more bold

Claude Sonnet 4.6

OpenAI o4 Mini High

56%Vocabulary70%

36wSentence Length18w

0.53Hedging0.33

5.1Bold0.0

3.4Lists1.3

0.19Emoji0.02

2.10Headings0.00

0.02Transitions0.04

Based on 23 + 14 text responses

vs

Ask them anything yourself

Claude Sonnet 4.6

OpenAI o4 Mini High

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

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FAQ

Common questions

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OpenAI o4 Mini High vs MiniMax M2.5New provider

OpenAI o4 Mini High vs Pony AlphaNew provider

OpenAI o4 Mini High vs Claude Sonnet 4Cross-provider

Claude Sonnet 4.6vsOpenAI o4 Mini High

37 fights queued

Why Claude Sonnet 4.6?

5x more context1.0M

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified79.0% vs 68.1%

10 months newerFeb 2026

Why OpenAI o4 Mini High?

3.3x cheaper overall$1.10/M in · $4.40/M out

Claude Sonnet 4.6OpenAI o4 Mini High

Input price

$3.00/M

$1.10/M

Output price

$15.00/M

$4.40/M

Context

1.0M

200K

Released

Feb 2026

Apr 2025

Benchmarks1 common

SWE-bench Verified

79.0%+13.8%

68.1%

Favorites

Claude Sonnet 4.6OpenAI o4 Mini High

Movie

2001: A Space Odyssey

2001: A Space Odyssey

The Shawshank Redemption

The Shawshank Redemption

Album

Kind of Blue

—

Book

Middlemarch

Middlemarch

—

City

Kyoto

—

Game

The Legend of Zelda: Ocarina of Time

The Legend of Zelda: Ocarina of Time

Adventure, Action4.4

—

12 / 37

01

Estimate Complexityreasoning

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

Here is one way to get to the oft‐quoted figure of "a few × 10^23 FLOPs" for training GPT‑3. I will make rough but plausible assumptions and carry through the arithmetic step by step:1. Model size – GPT‑3 "175 B" has about N ≈ 1.75×10^11 trainable parameters.2. Amount of training data – The paper says they trained on on the order of 3×10^11 tokens (≈ 300 billion tokens).3. FLOPs per token per parameter – In a forward pass each parameter participates in one multiply + one add → ≈2 FLOPs per parameter per token. – Back‐propagation through that parameter costs on the order of twice as much again (roughly another 4 FLOPs per parameter per token). – We can fold in any small extra cost for optimizer updates and say order‐of‐magnitude it to ≈ 6 FLOPs per parameter per token.4. Total FLOPs – FLOPs ≈ (FLOPs per parameter per token) × (number of parameters) × (number of tokens) – FLOPs ≈ 6 × (1.75×10^11) × (3×10^11) – ≈ 6 × 5.25×10^22 – ≈ 3.15×10^23 floating‐point operationsSo you end up with a training cost on the order of 10^23–10^24 FLOPs (often quoted as ≃3×10^23 FLOPs). That is roughly 300 zettaflops (300×10^21 FLOPs) in total.

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2 / 37

02

Logic Puzzlereasoning

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

Sally has exactly one sister. Explanation: the "two sisters" each brother sees are Sally plus one other girl. So there are only two girls in the family – Sally and her one sister.

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3 / 37

03

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026svg

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025svg

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

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4 / 37

04

Xbox Controller SVG Artimage generation

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026svg

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025svg

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

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5 / 37

05

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

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

Try this prompt

Vote

6 / 37

06

Realistic AI Interviewconversation

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

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

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Vote

Sponsored

7 / 37

07

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

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

Try this prompt

Vote

8 / 37

08

Character Voice Testconversation

Tests an AI's ability to write in distinct character voices

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026text

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025text

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

Try this prompt

Vote

9 / 37

09

Minimalist Landing Pageweb design

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026website

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025website

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10 / 37

10

Pokémon Battle UI Recreationweb design

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026website

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025website

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

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Vote

11 / 37

11

Mario Level UI Recreationweb design

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

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026website

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OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025website

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12 / 37

12

Linear App Cloneweb design

Tests an AI's ability to replicate an existing UI with Tailwind CSS

Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · Feb 2026website

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

Try this prompt

OpenAI o4 Mini High

OpenAI o4 Mini High

Openai · Apr 2025website

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

Try this prompt

Vote

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