Grok 4.1 Fast
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Grok 4.1 Fast vs o3 Mini
Compare Grok 4.1 Fast by xAI against o3 Mini by OpenAI, tested across 39 shared challenges. Updated February 2026.
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Grok 4.1 Fastvso3 Mini
34 challenges
Why Grok 4.1 Fast?
11 months newerNov 2025
Why o3 Mini?
No standout advantages
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Grok 4.1 Fasto3 Mini
12 / 34
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
o3 Mini
Below is a step‐by‐step estimation:
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Parameters Count:
GPT‑3 has about 175 billion parameters, i.e. roughly 1.75×10¹¹ parameters. -
Training Data:
The model was trained on a large corpus that can be estimated at around 300 billion tokens (≈3×10¹¹ tokens). -
FLOPs per Token:
In training deep networks like GPT‑3, the forward pass involves roughly one multiply–accumulate per parameter per token, but the backward pass (for computing gradients) costs about 2–3 times as much as the forward pass. A common rule‐of‐thumb is that training requires roughly 6 times as many FLOPs as a single forward pass. -
Total FLOPs Calculation:
The total number of FLOPs is therefore approximately:
[ ext{FLOPs} approx 6 imes ( ext{number of parameters}) imes ( ext{number of tokens}) ] Plugging in the numbers: [ ext{FLOPs} approx 6 imes 1.75 imes 10^{11} imes 3 imes 10^{11} approx 6 imes 5.25 imes 10^{22} approx 3.15 imes 10^{23} ] -
Final Estimate:
So, the training of GPT‑3 likely required on the order of 3×10²³ FLOPs.
This is an approximate calculation that combines rough estimates for both the number of training tokens and the factor accounting for both the forward and backward passes. Variations in these estimates or the exact training setup could change the final number by a factor of a few, but 3×10²³ FLOPs is a commonly cited ballpark figure.
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2 / 34
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
Grok 4.1 Fast
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o3 Mini
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3 / 34
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Grok 4.1 Fast
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o3 Mini
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4 / 34
Math Misconception Testreasoning
Tests an AI's understanding of number representation
Grok 4.1 Fast
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o3 Mini
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5 / 34
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
Grok 4.1 Fast
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o3 Mini
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6 / 34
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Grok 4.1 Fast
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o3 Mini
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7 / 34
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Grok 4.1 Fast
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o3 Mini
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8 / 34
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
Grok 4.1 Fast
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o3 Mini
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9 / 34
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
Grok 4.1 Fast
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o3 Mini
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10 / 34
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
Grok 4.1 Fast
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o3 Mini
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11 / 34
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
Grok 4.1 Fast
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o3 Mini
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Sponsored
12 / 34
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Grok 4.1 Fast
o3 Mini
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12 of 34