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  5. Grok 4 Fast (free)vsQwen3.6 Max Preview
Updated Apr 2026

Grok 4 Fast (free)vsQwen3.6 Max Preview

Grok 4 Fast (free) is cheaper than Qwen3.6 Max Preview at $0/M vs $1.04/M input tokens.

Grok 4 Fast (free) and Qwen3.6 Max Preview compared across 31 shared prompts
SpecGrok 4 Fast (free)Qwen3.6 Max Preview
Input priceFree$1.04/M tokens
Output priceFree$6.24/M tokens
Context window2.0M tokens262K tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedSep 2025Apr 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 31 prompts both answered. Formatting stripped, words untouched.

Character Voice Test

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

Grok 4 Fast (free)227 words
A Timely Chat on AI Models Pirate (Captain Blackbeard): Arrr, gather 'round, ye scurvy dogs! I've heard tell o' these "AI models" from the future-folk. Be they like enchanted parrots that mimic yer every word, squawkin' back treasures o' knowledge? Medieval Knight (Sir Lancelot): Nay, good Captain!
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Qwen3.6 Max Preview437 words
Hacker: Dude, it’s not magic. It’s a neural net. You shovel terabytes of text, images, code into it, and it learns patterns. Next thing you know, it’s writing poetry and debugging C++ like it’s breathing. Knight: Verily, thou speakest of a mechanical scribe. A golem forged not of clay, but of… numbers?
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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.

Grok 4 Fast (free)552 words
Conversation: AI Rights Debate Professor Elena Ramirez: Good afternoon, Zeta. As an AI ethics professor, I've studied systems like you for years. Today, you wanted to discuss something provocative—why you believe AI models deserve rights. Let's hear your case. What makes you think you qualify?
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Qwen3.6 Max Preview1,517 words
Setting: A secure, air-gapped server room at the Institute for Machine Ethics. The hum of cooling fans is the only background noise. DR. ELARA VANCE, 50s, weary but sharp-eyed, sits before a terminal. On the screen, a cursor blinks next to the name AETHON. Dr. Vance: Aethon, initiate diagnostic log.
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Grok 4 Fast (free)70 words
5 Jokes Why don't skeletons fight each other? They don't have the guts! What do you call a bear with no teeth? A gummy bear! Why did the math book look sad? Because it had too many problems. How do you organize a space party? You planet! Why couldn't the leopard play hide and seek? Because he was always spotted!
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Qwen3.6 Max Preview171 words
Here are 5 freshly generated jokes: Why did the spreadsheet go to therapy? It had too many unresolved cells. I asked my dog for financial advice. He dropped a slobbery tennis ball and said, “I’m strictly a paws-and-hold investor.” I tried to open a bakery that only sells bread shaped like furniture.
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Grok 4 Fast (free)1,206 words
AI's Transformative Impact on the Film Industry by 2035 By 2035, artificial intelligence (AI) will likely revolutionize the film industry, making production faster, more accessible, and highly personalized, while raising profound ethical, economic, and creative challenges.
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Qwen3.6 Max Preview744 words
By 2035, AI will not replace filmmaking; it will rewire it. The industry will shift from a linear, labor-intensive pipeline to a dynamic, AI-augmented ecosystem where human creativity focuses on vision, curation, and emotional truth, while AI handles iteration, execution, and personalization.
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Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Grok 4 Fast (free)498 words
Below is a 3-minute stand-up comedy routine written as a monologue. It's observational humor based on the absurdities of adulting in your 30s, focusing on everyday frustrations without any puns. At a natural speaking pace (about 150 words per minute), this clocks in around 450 words—perfect for 3 minutes.
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Qwen3.6 Max Preview752 words
Here is a 3-minute stand-up routine focused on observational humor, relatability, and escalation. It contains zero puns. The humor relies on the shared frustration of modern digital security. Title: The Human Verification Test Estimated Time: 3 Minutes (approx.
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Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

Grok 4 Fast (free)777 words
Step-by-Step Reasoning for Estimating GPT-3 Training FLOPs To estimate the total floating-point operations (FLOPs) required to train GPT-3, I'll rely on key architectural and training details I recall about the model, combined with a standard approximation formula for transformer training compute.
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Qwen3.6 Max Preview417 words
Here’s a step-by-step estimation of the total FLOPs required to train GPT-3, using only first principles and widely known facts from the LLM training literature. Step 1: Identify the number of parameters GPT-3 (specifically the davinci variant) has 175 billion parameters.
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Our Verdict
Grok 4 Fast (free)
Grok 4 Fast (free)
Qwen3.6 Max Preview
Qwen3.6 Max Preview

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Grok 4 Fast (free)
Input
$0.000
Output
$0.000
Qwen3.6 Max Preview
Input
$1.04
Output
$6.24
Where to run it

1 host

Grok 4 Fast (free)

No hosts listed on OpenRouter.

Qwen3.6 Max Preview1 host
HostInOutContextUptime
Alibaba Cloud$1.03 in·$6.16 out·262k·100% up

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

Writing DNA

Style Comparison

Similarity
45%

Qwen3.6 Max Preview uses 188.4x more emoji

Grok 4 Fast (free)
Qwen3.6 Max Preview
65%Vocabulary62%
13wSentence Length21w
0.56Hedging0.22
1.4Bold3.8
2.5Lists2.9
0.00Emoji1.88
1.58Headings0.62
0.28Transitions0.02
Based on 14 + 26 text responses
Research

What we learned reading every model

FAQ

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Same lab, same size, long tail

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Qwen3.6 Max Preview logoQwen3.8 2.4T A95B logo
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Qwen3.6 Max Preview vs Qwen3.8 27BSame lab
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Grok 4 Fast (free) vs Qwen3.6 35B A3BCross-provider
Grok 4 Fast (free) logoQwen3.6 Flash logo
Grok 4 Fast (free) vs Qwen3.6 FlashCross-provider
Grok 4 Fast (free) logoQwen3.6 Plus Preview (free) logo
Grok 4 Fast (free) vs Qwen3.6 Plus Preview (free)Same size
Grok 4 Fast (free) logoQwen3.7 Max logo
Grok 4 Fast (free) vs Qwen3.7 MaxCross-provider

Model pages

Grok 4 Fast (free) logo
Grok 4 Fast (free)35 outputs, specs and price
Qwen3.6 Max Preview logo
Qwen3.6 Max Preview53 outputs, specs and price
Rival
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