Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy policy
  • Terms
  • RSS feed
  1. Home/
  2. Compare/
  3. Grok 3 vs Llama 3.1 70B (Instruct)
Updated Feb 2025

Grok 3 vs Llama 3.1 70B (Instruct)

Grok 3 is the newer model, released after Llama 3.1 70B (Instruct).

Grok 3 and Llama 3.1 70B (Instruct) compared across 50 shared prompts
SpecGrok 3Llama 3.1 70B (Instruct)
Input price—$0.59/M tokens
Output price—$0.79/M tokens
Context window128K tokens128K tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedFeb 2025Jul 2024
MMLU83.1%86.0%

Same prompt, both answers

Opening lines from 6 of the 50 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) –…

Grok 3769 words
Let’s underwrite this 5-year LBO for HarborTech Services (HTS). I'll break this down step-by-step, keeping calculations clear and concise. Step 1: Sources & Uses at Entry (End of FY2025) EBITDA (FY2025): $120m Purchase Price: 12.0x EBITDA = 12.0 * $120m = $1,440m (Enterprise Value) Transaction Fees: 2.0% of EV = 0.02 *…
Read the full answer
Llama 3.1 70B (Instruct)336 words
Year-by-Year Table (FY2026–FY2030) Year Revenue EBITDA Cash Interest Cash Taxes Capex ΔNWC FCF Ending Debt 2026 $972m $136m $36m ($32m TL, $4m Mezz) $2.8m $29m $4.9m $63m $1,050m ($720m TL, $330m Mezz) 2027 $1,038m $155m $37m ($33m TL, $4m Mezz) $6.3m $31m $5.2m $76m $974m ($654m TL, $320m Mezz) 2028 $1,103m $176m $38m…
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 3245 words
Recipe: Cocoa Comet Mug Cake This simple, decadent chocolate mug cake is a quick treat that transforms basic pantry staples into a warm, fudgy delight. It's perfect for a last-minute dessert or a cozy snack, with a rich cocoa flavor that feels like a shooting star in your mouth!
Read the full answer
Llama 3.1 70B (Instruct)311 words
Here is a simple recipe for a delicious dish using only 7 common pantry ingredients: Dish Name: "Sunset Crunch Bites" Ingredients: 1 cup rolled oats 1/2 cup peanut butter 1/4 cup honey 1/4 cup chopped peanuts 1/2 teaspoon salt 1/4 teaspoon cinnamon 1/4 cup chocolate chips (semi-sweet) Instructions: Preheat your oven to…
Read the full answer

Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

Grok 31,419 words
Below is a detailed design for an innovative multi-component dish inspired by the intersection of terrestrial luxury and oceanic mystery. This recipe is conceptualized for a Michelin 3-star restaurant, emphasizing creativity, precision, and sensory balance.
Read the full answer
Llama 3.1 70B (Instruct)653 words
Dish Name: "Aurora Australis" - A Harmonious Union of Smoked Eel, Saffron-Infused Sunchokes, and Frozen Finger Lime Pearls Conceptual Narrative: Inspired by the breathtaking display of the Southern Lights, "Aurora Australis" is a dish that embodies the ethereal beauty of the Antarctic night sky.
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Grok 3151 words
Here are five jokes for you: Why don’t skeletons fight each other? Because they don’t have the guts! What has 4 legs and 1 arm? A pitbull coming back from the park! Why don’t skeletons fight each other? They’re too busy rattling around! What do you call a bear with no teeth? A gummy bear! Why did the tomato turn red?
Read the full answer
Llama 3.1 70B (Instruct)126 words
A bold request! Here are 5 jokes I just generated: Why don't scientists trust atoms? Because they make up everything. Why don't eggs tell jokes? They'd crack each other up. Why did the scarecrow win an award? Because he was outstanding in his field. Why did the bicycle fall over? Because it was two-tired.
Read the full answer

Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

Grok 3883 words
Internal Investment Committee Memo Date: [Insert Date] Subject: LedgerLift (LLLT) – Recommendation and Analysis Prepared by: [Your Name] 1. Recommendation: Long; 12-Month Price Target Range: $58-$72 We recommend a long position in LedgerLift (LLLT) with a 12-month price target range of $58-$72, reflecting our…
Read the full answer
Llama 3.1 70B (Instruct)574 words
Investment Committee Memo Recommendation: Long 12-month PT range: $60-$75 Thesis: LedgerLift's strong B2B spend management and AP automation SaaS platform, with a loyal customer base and efficient growth model, positions the company for sustained success, driven by increasing adoption of digital payment solutions and…
Read the full answer

Character Voice Test

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

Grok 3454 words
Setting: A mystical tavern where time travelers and characters from different eras collide. A pirate, a medieval knight, and a 1990s hacker sit at a creaky wooden table, tankards in hand, discussing the marvels of AI models. Pirate (Captain Blackbeard): Arr, mateys!
Read the full answer
Llama 3.1 70B (Instruct)344 words
What a delightfully absurd prompt! Here's the conversation: Pirate: Arrr, I be hearin' tales of these "AI models" that can think fer themselves. What's the scoop, mateys? Medieval Knight: Verily, good pirate, I know not of what thou speakest. Art thou referring to some manner of magical automaton? 1990s Hacker: Ha!
Read the full answer
Our verdictToo close to call
Grok 3Our pick
vs
Llama 3.1 70B (Instruct)Runner-up

Not enough votes to call it. On the specs, Grok 3 has the edge: bigger model tier, newer.

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens
Price per 1M tokensGrok 3Llama 3.1 70B (Instruct)
Input–not listed$0.59
Output–not listed$0.79
At 10M a month–not listed$5.90$5.90
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it

2 hosts, cheapest first
Grok 3

No hosts listed on OpenRouter.

Llama 3.1 70B (Instruct)2 hosts
HostInOutContextUptime
  • DDeepInfrafp8$0.40 in·$0.40 out·131k·99.2% up
  • Amazon Bedrock$0.72 in·$0.72 out·131k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.

Style comparison

Writing DNA from 27 + 27 text responses. Grok 3 uses 2.5x more emoji.

Similarity
79%
Grok 3Llama 3.1 70B (Instruct)
  • Vocabulary: Grok 3 54%, Llama 3.1 70B (Instruct) 51%54%Vocabulary51%
  • Sentence length: Grok 3 17w, Llama 3.1 70B (Instruct) 21w17wSentence length21w
  • Hedging: Grok 3 0.65, Llama 3.1 70B (Instruct) 0.550.65Hedging0.55
  • Bold: Grok 3 2.6, Llama 3.1 70B (Instruct) 3.02.6Bold3.0
  • Lists: Grok 3 2.3, Llama 3.1 70B (Instruct) 4.02.3Lists4.0
  • Emoji: Grok 3 0.02, Llama 3.1 70B (Instruct) 0.000.02Emoji0.00
  • Headings: Grok 3 0.48, Llama 3.1 70B (Instruct) 0.000.48Headings0.00
  • Transitions: Grok 3 0.20, Llama 3.1 70B (Instruct) 0.060.20Transitions0.06

What we learned reading every model

Common questions

What is the difference between Grok 3 and Llama 3.1 70B (Instruct)?

Grok 3 is developed by xAI while Llama 3.1 70B (Instruct) is developed by Meta AI. Grok 3 has a 128K token context window vs Llama 3.1 70B (Instruct)'s 128K. You can compare their actual outputs across 50 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 or Llama 3.1 70B (Instruct)?

It depends on your use case. Grok 3 and Llama 3.1 70B (Instruct) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 50 challenges so you can judge which fits your needs best.

How can I compare Grok 3 and Llama 3.1 70B (Instruct) on Rival?

This page shows a side-by-side comparison of Grok 3 and Llama 3.1 70B (Instruct) 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.

More comparisons

Against the newest arrivals

  • Grok 3 vs Solar Mini 4Landed Sep 2026
  • Llama 3.1 70B (Instruct) vs Qwen3.8 Max PrimeLanded Sep 2026
  • Grok 3 vs GLM 5.3 PrimeLanded Sep 2026
  • Llama 3.1 70B (Instruct) vs Qwen3.8 Omni FlashLanded Sep 2026
  • Grok 3 vs Command A+Landed Sep 2026
  • Llama 3.1 70B (Instruct) vs Claude Opus 5.5Landed Sep 2026
  • Grok 3 vs GPT-6 Luna ProLanded Sep 2026
  • Llama 3.1 70B (Instruct) vs GPT-6 Sol ProLanded Sep 2026

Same lab, same size, long tail

  • Grok 3 vs Grok 4.7Same lab
  • Grok 3 vs Grok 4.6Version compare
  • Llama 3.1 70B (Instruct) vs Muse Glimmer 30BSame lab
  • Llama 3.1 70B (Instruct) vs Muse Spark 1.3Same lab
  • Llama 3.1 70B (Instruct) vs Ring 2.6 1TNew provider
  • Llama 3.1 70B (Instruct) vs Seed 2.0 CodeSame size
  • Llama 3.1 70B (Instruct) vs Seed 2.0 LiteNew provider
  • Llama 3.1 70B (Instruct) vs Seed 2.1 TurboSame size

Model pages

  • Grok 357 outputs, specs and price
  • Llama 3.1 70B (Instruct)56 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy policy
  • Terms
  • RSS feed