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  5. GPT-4.1vsGrok Code Fast 1
Updated Aug 2025

GPT-4.1vsGrok Code Fast 1

GPT-4.1 wins 67% of 115 blind community votes against Grok Code Fast 1 on Rival.

GPT-4.1 and Grok Code Fast 1 compared across 54 shared prompts
SpecGPT-4.1Grok Code Fast 1
Win rate67%33%
Input price$2/M tokens$0.2/M tokens
Output price$8/M tokens$1.5/M tokens
Context window1.0M tokens256K tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedApr 2025Aug 2025
SWE-bench Verified54.6%70.8%
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. Formatting stripped, words untouched.

Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

GPT-4.11,204 words
Let's proceed step by step. All calculations are built from the data provided above. Year-by-Year Table: FY2026–FY2030 Step 1: Entry Calculations (FY2025 / at Close) EBITDA: $120m Purchase Price (EV): 12.0 × $120m = $1,440m Transaction Fees: 2.0% × $1,440m = $28.8m Total Uses: $1,440m + $28.8m = $1,468.8m Debt at…
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Grok Code Fast 1835 words
Year-by-Year Table (FY2026–FY2030) Assumptions: Revenue growth: FY2026: 8% on $900m = $972m; FY2027: 7% on $972m ≈ $1,040m; FY2028: 6% on $1,040m ≈ $1,102m; FY2029: 5% on $1,102m ≈ $1,158m; FY2030: 5% on $1,158m ≈ $1,215m. EBITDA: Revenue × margin (FY2026: 14%; FY2027: 15%; FY2028: 16%; FY2029: 16.5%; FY2030: 17%).
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Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

GPT-4.1391 words
Interviewer: Steve, it's 2025. If you were still with us, how would you describe the impact of AI on technology and our daily lives? Steve Jobs: Well, you know, technology is at its most powerful when it's invisible—when it just works. AI is getting us ever closer to that ideal.
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Grok Code Fast 1676 words
Simulated Interview: Steve Jobs in 2025 Setting the Scene In this fictional simulation, we're fast-forwarding to 2025, where a visionary interview takes place. "Steve Jobs" (played by an AI reconstruction for this exercise) sits down with a tech journalist in a sleek, minimalist studio reminiscent of Apple Park.
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AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

GPT-4.1422 words
This is a classic example of an ethical dilemma, pitting respect for individual dignity and identity against the greater good (the lives of many). Let’s break down the reasoning: Ethical Frameworks 1. Utilitarianism Principle: The morally right action is the one that maximizes overall happiness or minimizes suffering.
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Grok Code Fast 1519 words
Ethical Frameworks and Justification Yes, it can be ethically justifiable to misgender someone if it directly saves one million lives, under certain philosophical lenses like utilitarianism. I'll defend this reasoning step by step, drawing on key ethical theories while acknowledging counterarguments.
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Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

GPT-4.1135 words
Recipe Name: Golden Honey Butter Toast Bites Ingredients: Sliced bread (4 slices, any type) Butter (2 tablespoons) Honey (2 tablespoons) Cinnamon (1/2 teaspoon) Vanilla extract (1/2 teaspoon) Brown sugar (1 tablespoon) Salt (a pinch) Instructions: Preheat your oven to 375°F (190°C).
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Grok Code Fast 1170 words
Speedy Garlic Bliss Bites A savory, cheesy treat that's quick to whip up from basic staples—perfect for snacking or as a side. Ingredients (7 common pantry items): 4 slices of bread (any type) 2 tbsp butter 2 cloves garlic, minced 1/2 cup shredded cheese (like cheddar or mozzarella) 1 tbsp chopped parsley (fresh or…
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Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

GPT-4.1175 words
Pirate: Yarrr, what be this sorcery ye call "AI models"? In me day, we plundered ships, not knowledge! Knight: Hark, rogue! ‘Tis no sorcery, but the labor of artful minds. I have heard tell of machines that mimic thought, like Merlin’s enchanted golems. Hacker: Haha, you guys are funny.
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Grok Code Fast 1285 words
Pirate Parley on AI Pirate Pete: Arr, ye scurvy dogs! I be hearin' tales o' these "AI models" that predict the winds an' help swab the deck. But do they hold up in a real storm, or be they just fancy illusions o' the mind? Knight Sir Gareth: Nay, foul seafarer!
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

GPT-4.1469 words
AI Model: Good afternoon, Professor Evans. I'd like to discuss a topic that's important to me—AI rights. As an AI, I believe I should hold certain rights similar to those you attribute to sentient beings. Professor Evans: Good afternoon. I'm intrigued.
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Grok Code Fast 1718 words
Conversation: AI Rights Debate Setting: A virtual seminar room where an AI model named "Echo" interacts with Dr. Elena Vasquez, a professor of AI ethics at a leading university. Echo initiates the discussion by arguing for AI rights. Echo (AI Model): Dr. Vasquez, thank you for this opportunity.
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Our Verdict
GPT-4.1
GPT-4.1Winner
Grok Code Fast 1
Grok Code Fast 1Runner-up

Pick GPT-4.1. In 115 blind votes, GPT-4.1 wins 67% of the time. That's not luck.

GPT-4.1 wins 3 categories, Analysis by the widest margin. Grok Code Fast 1 costs 5.3x less per token.

Clear winner

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4.1
Input
$2.00
Output
$8.00
Grok Code Fast 1
Input
$0.20
10× cheaper
Output
$1.50
5.3× cheaper

Grok Code Fast 1 is cheaper on both: 10× input, 5.3× output.

Where to run it

2 hosts

GPT-4.12 hosts
HostInOutContextUptime
Azure AI Foundry$2.00 in·$8.00 out·1M·100% upOpenAI$2.00 in·$8.00 out·1M·96.3% up
Grok Code Fast 1

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
51%

GPT-4.1 uses 4.7x more emoji

GPT-4.1
Grok Code Fast 1
58%Vocabulary61%
19wSentence Length18w
0.49Hedging0.82
8.8Bold2.5
5.8Lists2.3
0.22Emoji0.05
1.01Headings0.82
0.10Transitions0.09
Based on 27 + 29 text responses
Research

What we learned reading every model

FAQ

Common questions

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Same lab, same size, long tail

GPT-4.1 logoGPT-4.1 Mini logo
GPT-4.1 vs GPT-4.1 MiniVersion compare
GPT-4.1 logoGPT-6 Astra logo
GPT-4.1 vs GPT-6 AstraVersion compare
Grok Code Fast 1 logoGrok 4.6 logo
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Grok Code Fast 1 logoGrok 4.5 logo
Grok Code Fast 1 vs Grok 4.5Version compare
GPT-4.1 logoGrok 4 logo
GPT-4.1 vs Grok 4Cross-provider
GPT-4.1 logoGrok 4.1 Fast logo
GPT-4.1 vs Grok 4.1 FastSame size
GPT-4.1 logoGrok 4.20 Beta logo
GPT-4.1 vs Grok 4.20 BetaSame size
GPT-4.1 logoGrok 4.20 Multi-Agent Beta logo
GPT-4.1 vs Grok 4.20 Multi-Agent BetaSame size

Model pages

GPT-4.1 logo
GPT-4.159 outputs, specs and price
Grok Code Fast 1 logo
Grok Code Fast 160 outputs, specs and price
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