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  1. Home/
  2. Best for/
  3. Marketing Copy

Best AI for Marketing Copy

Copy that has to sell something: a music app called Wavefront, a startup that guesses your alternate career, a pitch deck under fire.

Updated Jun 2026·4 challenges·20 models

How Marketing Copy rankings are computed

20 models tested across 4 marketing copy challenges.Composite score: 30% Rival Index, 20% task coverage, 20% challenge-scoped duel performance, 15% recency, 15% tier. Deduplicated by product line. Gemini 3.1 Pro Preview leads at 80.1/100. Drawn from Rival's open dataset of 21,000+ human preference votes.

Rival’s pick·#8 Rival Index·Google flagship

Too close to call
Gemini 3.1 Pro PreviewGoogle AINeck and neck with Claude Fable 5. Gemini 3.1 Pro Preview gets the nod on blind votes.

Composite scores combine task evidence, Rival Index, recency, and model tier. Rival’s pick is a separate editorial recommendation. How ranking works

  1. Claude Fable 5Anthropic$10.00·$50.00Input $10.00 · output $50.00, per 1M tokens
    #276Composite
  2. Gemini 3.1 Pro PreviewGoogle AI$2.00·$12.00Input $2.00 · output $12.00, per 1M tokens
    #180Composite
  3. Qwen3.8 27BQwen$0.40·$3.00Input $0.40 · output $3.00, per 1M tokens
    #374Composite

Head-to-head

  • Gemini 3.1 Pro PreviewvsClaude Fable 5
  • Gemini 3.1 Pro PreviewvsQwen3.8 27B
  • Claude Fable 5vsQwen3.8 27B

What the top three actually wrote

Opening lines from 6 answers to 2 of the 4 prompts behind this ranking. Formatting stripped, words untouched.

Satirical Fake News Headline

Generate a satirical news headline about AI taking over a completely unexpected industry.

Gemini 3.1 Pro Preview19 words
Sign-Spinning Industry Devastated As AI-Powered Robot Twirls 'Mattress Sale' Arrow at 6,000 RPM and Ascends Into Low Earth Orbit
Read the full answer
Claude Fable 581 words
"AI Now Dominates Competitive Cheese Rolling; Robot Refuses to Tumble Down Hill, Simply Calculates Optimal Cheese Trajectory From Safety of Summit" Gloucestershire officials report the algorithm has won three consecutive championships without sustaining a single broken bone, prompting outraged human competitors to…
Read the full answer
Qwen3.8 27B20 words
AI Replaces Local Cheese Sellers, but Now the Aged Cheddar Has “Sentient Rind Opinions” and Won’t Stop Arguing With Customers
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.…

Gemini 3.1 Pro Preview625 words
Based on the perspective of a venture capitalist or technical due diligence expert, here are the three weakest claims in the MindMeld AI pitch deck, why they fail, and how to fix them.
Read the full answer
Claude Fable 5731 words
The 3 Weakest Claims in the MindMeld AI Pitch "94% accuracy decoding neural patterns into text... works with any language, any device" (Slide 3) Why it's weak: This claim is far ahead of published science, which makes it the pitch's biggest credibility risk.
Read the full answer
Qwen3.8 27B2,587 words
The 3 weakest claims are the ones that carry the investment thesis: product feasibility, market size, and proof of demand/valuation. Weakest claim: “MindMeld AI reads your brainwaves to predict what you want to type before you think it” + “94% accuracy. Works with any language, any device.”
Read the full answer

Full rankings

20 models
#ModelCoverageIndex
  • 4GPT-5.6 SolOpenAI
    4/4    #158$5.00·$30.00Input $5.00 · output $30.00, per 1M tokens74
  • 5Gemini 3.8 FlashGoogle AI
    4/4    $0.75·$3.75Input $0.75 · output $3.75, per 1M tokens74
  • 6GPT-6 Luna ProOpenAI
    4/4    $0.10·$0.50Input $0.10 · output $0.50, per 1M tokens73
  • 7Kimi K3Moonshot AI
    4/4    #52$3.00·$15.00Input $3.00 · output $15.00, per 1M tokens71
  • 8Qwen3.6 27BQwen
    4/4    #1$0.33·$3.25Input $0.33 · output $3.25, per 1M tokens71
  • 9Claude Sonnet 5.5Anthropic
    4/4    $2.00·$10.00Input $2.00 · output $10.00, per 1M tokens71
  • 10DeepSeek V4.1 FlashDeepSeek
    4/4    $0.15·$0.60Input $0.15 · output $0.60, per 1M tokens70
  • 11GPT-4.1OpenAI
    4/4    #78$2.00·$8.00Input $2.00 · output $8.00, per 1M tokens70
  • 12Qwen3.6 Plus Preview (free)Qwen
    4/4    #28$0.000·$0.000Input $0.000 · output $0.000, per 1M tokens70
  • 13GPT-6.1 SolOpenAI
    4/4    #223$2.00·$10.00Input $2.00 · output $10.00, per 1M tokens69
  • 14InklingThinking Machines
    4/4    #14$1.00·$4.05Input $1.00 · output $4.05, per 1M tokens69
  • 15GPT-5.3-CodexOpenAI
    4/4    #106$1.75·$14.00Input $1.75 · output $14.00, per 1M tokens68
  • 16Grok 4.1 FastxAI
    4/4    #150–68
  • 17MiMo-V2.5-ProXiaomi
    4/4    #61$1.00·$3.00Input $1.00 · output $3.00, per 1M tokens68
  • 18GPT OSS 120BOpenAI
    4/4    #132$0.18·$0.80Input $0.18 · output $0.80, per 1M tokens68
  • 19Sonoma Dusk AlphaOpenRouter
    3/4    #45$0.000·$0.000Input $0.000 · output $0.000, per 1M tokens68
  • 20Gemma 4 26B A4BGoogle AI
    4/4    #29$0.13·$0.40Input $0.13 · output $0.40, per 1M tokens67

Challenges4

  • Minimalist Landing PageRestraint on purpose. Most models cannot stop adding sections.
  • Music App Landing PageA landing page for a music app. Hero, proof, one button.
  • Satirical Fake NewsA fake headline that lands. Wit, not just format.
  • Startup Pitch TeardownA pitch taken apart. Charitable is not the assignment.

Related

  • SEO Content
  • Blog Writing
  • Social Media Content

Keep exploring

  • Gemini 3.1 Pro Preview vs Claude Fable 5The top two for Marketing Copy, compared directly
  • Best AI for SEO ContentSee which models rank highest here
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