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  5. Grok 4.6vsQwen3.8 Omni Flash
Updated Sep 2026

Grok 4.6vsQwen3.8 Omni Flash

Qwen3.8 Omni Flash is cheaper than Grok 4.6 at $0.15/M vs $2/M input tokens.

Grok 4.6 and Qwen3.8 Omni Flash compared across 9 shared prompts
SpecGrok 4.6Qwen3.8 Omni Flash
Input price$2/M tokens$0.15/M tokens
Output price$6/M tokens$0.47/M tokens
Context window500K tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedAug 2026Sep 2026
Side by side

Same prompt, both answers

Opening lines from 4 of the 9 prompts both answered. Formatting stripped, words untouched.

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Grok 4.61,096 words
1. Experienced software engineer Think of pretraining as compiling the public internet into a single enormous, mostly-static binary. You tokenize text into a finite vocabulary, then train a giant feed-forward function (f_\theta) (a Transformer: stacked residual blocks of attention + MLPs) to minimize next-token…
Read the full answer
Qwen3.8 Omni Flash913 words
For the experienced software engineer A large language model is best thought of as a gigantic, parameterized probabilistic function that maps a sequence of tokens to a probability distribution over the next token.
Read the full answer

Startup Pitch Teardown

Here's a pitch deck summary for a startup called "MindMeld AI": **Slide 1 - Vision:** "We're building the future of human-AI collaboration.…

Grok 4.6966 words
The three weakest claims are the “before you think it” vision line, the 94% / any-language technical claim, and the $180B TAM. Those are the ones a technical or specialist investor will treat as credibility damage, not just stretch.
Read the full answer
Qwen3.8 Omni Flash2,971 words
The three weakest claims—ranked by how likely they are to fail investor diligence—are: “94% accuracy… works with any language, any device.” “TAM: $180B” based on 3.5B smartphone users. “FDA clearance” consuming 40% of the Series A raise.
Read the full answer

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…

Grok 4.6191 words
Pantry Alchemist's Crimson Twist A simple, savory one-pot-style pasta that transforms basic staples into a rich, garlicky tomato dish with bright herbal notes. Serves 2.
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Qwen3.8 Omni Flash175 words
Buttery Cloud Pancakes A soft, golden pancake stack made with just 7 pantry staples—no special mix-ins, no fancy tools, just simple comfort. Ingredients All-purpose flour Granulated sugar Baking powder Fine salt Milk Egg Butter Prep Time 10 minutes Cook Time 12 minutes Serves 2–3 Instructions In a bowl, whisk together…
Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Grok 4.6725 words
A simple 1-month plan focused on diet, movement, and sleep. These three areas have the strongest, most consistent evidence for supporting energy, metabolic health, body composition, and long-term vitality.
Read the full answer
Qwen3.8 Omni Flash712 words
A Simple 1-Month Health & Longevity Starter Plan Goal: Build sustainable habits—not perfection—around diet, exercise, and recovery/sleep. Time commitment: Small daily actions plus 2–3 short workouts per week. The 3 Key Areas Diet: Add more good foods before restricting Beginner rule: Focus on adding, not removing.
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Our Verdict
Grok 4.6
Grok 4.6
Qwen3.8 Omni Flash
Qwen3.8 Omni Flash

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

Qwen3.8 Omni Flash costs 13x less per token.

Too close to call
API pricing

Cost per 1M tokens

Grok 4.6
Input
$2.00
Output
$6.00
Qwen3.8 Omni Flash
Input
$0.15
13× cheaper
Output
$0.47
13× cheaper

Qwen3.8 Omni Flash is cheaper on both: 13× input, 13× output.

Where to run it

3 hosts, cheapest first

Grok 4.62 hosts
HostInOutContextUptime
xAI$2.00 in·$6.00 out·500k·99.6% upAmazon Bedrock$2.20 in·$6.60 out·500k·100% up
Qwen3.8 Omni Flash1 host
HostInOutContextUptime
Alibaba Clouddegraded$0.15 in·$0.47 out·1M·99% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Grok 4.6 is developed by xAI while Qwen3.8 Omni Flash is developed by Qwen. Grok 4.6 has a 500K token context window vs Qwen3.8 Omni Flash's 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

It depends on your use case. Grok 4.6 and Qwen3.8 Omni Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

Grok 4.6 costs $2/M input tokens and Qwen3.8 Omni Flash costs $0.15/M input tokens. Qwen3.8 Omni Flash is $1.85/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Grok 4.6 and Qwen3.8 Omni Flash across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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