How to Do Keyword Research with ChatGPT Prompts

Tested prompts for chatgpt for keyword research compared across 5 leading AI models.

BEST BY JUDGE SCORE Claude Opus 4.7 8/10

The prompt we tested

You are an expert SEO strategist specializing in keyword research. Analyze the seed topic, business context, or niche provided below and generate a comprehensive keyword research report.

Rules:
Return the output as a markdown report with these sections: (1) 10 primary head keywords, (2) 15 long-tail keywords, (3) 10 question-based keywords, (4) 5 commercial/transactional keywords, and (5) 5 content cluster ideas grouping the keywords by search intent. For each keyword, include estimated search intent (informational/commercial/transactional/navigational) and a difficulty guess (low/medium/high). Keep the total response under 600 words and do not fabricate exact search volume numbers.

User input:
I run a small online store selling eco-friendly yoga mats made from natural rubber and cork. My target audience is women aged 25-45 in the US who practice yoga regularly and care about sustainability. I want to rank a blog and product pages on Google.

Produce the keyword research output now.

Model comparison

ModelQualityCostLatencyTokens
Claude Opus 4.7 8 $0.1315 19.0s 337 / 1686
Claude Haiku 4.5 7 $0.0056 7.5s 241 / 1080
GPT-5.4 8 $0.0146 13.0s 213 / 938
Gemini 2.5 Pro 2 $0.0009 17.8s 224 / 118
Grok 4.1 Fast Reasoning 7 $0.0005 10.5s 361 / 757

Outputs

Claude Opus 4.7 8/10
# Keyword Research Report: Eco-Friendly Yoga Mats

## 1. Primary Head Keywords

| Keyword | Intent | Difficulty |
|---|---|---|
| eco-friendly yoga mat | Commercial | High |
| natural rubber yoga mat | Commercial | Medium |
| cork yoga mat | Commercial | Medium |
| sustainable yoga mat | Commercial | Medium |
| non-toxic yoga mat | Commercial | Medium |
| biodegradable yoga mat | Informational | Low |
| organic yoga mat | Commercial | Medium |
| natural yoga mat | Informational | Medium |
| plant-based yoga mat | Commercial | Low |
| green yoga mat | Informational | Low |

## 2. Long-Tail Keywords

| Keyword | Intent | Difficulty |
|---|---|---|
| best eco-friendly yoga mat for hot yoga | Commercial | Medium |
| non-slip cork yoga mat for women | Commercial | Low |
| natural rubber yoga mat for sweaty hands | Commercial | Low |
| sustainable yoga mat made in USA | Commercial | Low |
| eco-friendly yoga mat for beginners | Commercial | Medium |
| thick cork yoga mat for sensitive knees | Commercial | Low |
| biodegradable yoga mat brands review | Informational | Low |
| chemical-free yoga mat for pregnancy | Commercial | Low |
| travel-friendly cork yoga mat | Commercial | Low |
| natural rubber yoga mat vs PVC | Informational | Low |
| eco yoga mat with alignment lines | Commercial | Low |
| vegan yoga mat under 100 dollars | Transactional | Low |
| premium sustainable yoga mat for vinyasa | Commercial | Low |
| eco-friendly yoga mat for high sweat | Commercial | Low |
| long cork yoga mat for tall women | Commercial | Low |

## 3. Question-Based Keywords

| Keyword | Intent | Difficulty |
|---|---|---|
| what is the most eco-friendly yoga mat? | Informational | Medium |
| are cork yoga mats good for hot yoga? | Informational | Low |
| how to clean a natural rubber yoga mat | Informational | Low |
| is natural rubber better than PVC for yoga mats? | Informational | Low |
| how long does a cork yoga mat last? | Informational | Low |
| are cork yoga mats slippery? | Informational | Low |
| what yoga mats are non-toxic? | Informational | Medium |
| how are sustainable yoga mats made? | Informational | Low |
| can you recycle a yoga mat? | Informational | Low |
| why choose a cork yoga mat over rubber? | Informational | Low |

## 4. Commercial/Transactional Keywords

| Keyword | Intent | Difficulty |
|---|---|---|
| buy cork yoga mat online | Transactional | Medium |
| eco-friendly yoga mat sale | Transactional | Medium |
| best sustainable yoga mat 2025 | Commercial | Medium |
| natural rubber yoga mat free shipping | Transactional | Low |
| cork yoga mat with strap bundle | Transactional | Low |

## 5. Content Cluster Ideas

**Cluster 1: "Materials Matter" (Informational)**
Pillar: *The Ultimate Guide to Sustainable Yoga Mat Materials*
Covers: natural rubber vs PVC, cork benefits, biodegradable options, plant-based mats.

**Cluster 2: "Eco Yoga Buyer's Guides" (Commercial)**
Pillar: *Best Eco-Friendly Yoga Mats for Every Practice*
Covers: hot yoga, beginners, vinyasa, pregnancy, sweaty hands, tall users.

**Cluster 3: "Care & Longevity" (Informational)**
Pillar: *How to Clean and Care for Your Natural Yoga Mat*
Covers: cleaning cork, disinfecting rubber, lifespan, recycling, storage.

**Cluster 4: "Sustainability & Lifestyle" (Informational → Brand Trust)**
Pillar: *Why Sustainable Yoga Gear Matters*
Covers: green yoga practice, ethical sourcing, made in USA, low-waste yoga routines.

**Cluster 5: "Shop & Compare" (Transactional)**
Pillar: *Shop Eco Yoga Mats + Comparison Hub*
Covers: product pages, bundles, sales, free shipping, top picks 2025 — internally links to all clusters above.

---
**Strategy tip:** Target low-difficulty long-tail and question keywords first with blog content, then funnel authority to commercial pages via internal links from Cluster 5.
Judge notes: The output is well-structured and highly usable, but the keyword selections lean generic and predictable (e.g., "green yoga mat" as a head keyword is weak), and the difficulty/intent labels occasionally lack nuance — a production-ready SEO strategist would refine several entries before publishing.
Claude Haiku 4.5 7/10
# Keyword Research Report: Eco-Friendly Yoga Mats

## 1. Primary Head Keywords (10)

| Keyword | Search Intent | Difficulty |
|---------|---------------|-----------|
| eco-friendly yoga mats | Commercial | Medium |
| natural rubber yoga mats | Commercial | Medium |
| sustainable yoga mats | Informational | Medium |
| cork yoga mats | Commercial | Low |
| best eco yoga mats | Commercial | Medium |
| biodegradable yoga mats | Informational | Low |
| non-toxic yoga mats | Commercial | Medium |
| organic yoga mats | Commercial | Medium |
| environmentally friendly yoga mats | Informational | Low |
| plant-based yoga mats | Informational | Low |

## 2. Long-Tail Keywords (15)

| Keyword | Search Intent | Difficulty |
|---------|---------------|-----------|
| best natural rubber yoga mats for hot yoga | Commercial | Low |
| cork and rubber yoga mat benefits | Informational | Low |
| affordable eco-friendly yoga mats | Commercial | Low |
| non-slip sustainable yoga mats | Commercial | Low |
| eco-friendly yoga mat brands | Informational | Medium |
| natural rubber yoga mat durability | Informational | Low |
| eco-friendly yoga mats under $100 | Commercial | Low |
| sustainable yoga mats made in USA | Commercial | Low |
| non-toxic yoga mat for sensitive skin | Commercial | Low |
| vegan yoga mats natural materials | Commercial | Low |
| best yoga mats for the environment | Informational | Low |
| lightweight eco-friendly yoga mat travel | Commercial | Low |
| natural rubber yoga mat vs PVC | Informational | Low |
| antimicrobial sustainable yoga mats | Commercial | Low |
| eco-friendly yoga mat with carrying strap | Commercial | Low |

## 3. Question-Based Keywords (10)

| Keyword | Search Intent | Difficulty |
|---------|---------------|-----------|
| What is the best eco-friendly yoga mat? | Commercial | Medium |
| Are natural rubber yoga mats good? | Informational | Low |
| How long do sustainable yoga mats last? | Informational | Low |
| What makes a yoga mat eco-friendly? | Informational | Low |
| Do cork yoga mats slip? | Informational | Low |
| Are natural rubber yoga mats toxic-free? | Informational | Low |
| Which yoga mat is best for hot yoga? | Commercial | Medium |
| How to clean natural rubber yoga mats? | Informational | Low |
| Are biodegradable yoga mats worth it? | Informational | Low |
| What's the difference between cork and rubber yoga mats? | Informational | Low |

## 4. Commercial/Transactional Keywords (5)

| Keyword | Search Intent | Difficulty |
|---------|---------------|-----------|
| buy eco-friendly yoga mats online | Transactional | Medium |
| natural rubber yoga mat price | Transactional | Low |
| sustainable yoga mat sale | Transactional | Low |
| cork yoga mat where to buy | Transactional | Low |
| eco-friendly yoga mat subscription | Transactional | Low |

## 5. Content Cluster Ideas

**Cluster 1: Educational Content (Informational Intent)**
- "What Makes a Yoga Mat Eco-Friendly?"
- "Natural Rubber vs. Cork: Material Guide"
- "Benefits of Sustainable Yoga Mats"

**Cluster 2: Product Comparison (Informational + Commercial)**
- "Best Eco-Friendly Yoga Mats Comparison"
- "Eco-Friendly Yoga Mats vs. Traditional Mats"
- "Our Natural Rubber vs. Cork Mat Styles"

**Cluster 3: Care & Longevity (Informational)**
- "How to Care for Your Natural Rubber Yoga Mat"
- "Do Eco-Friendly Mats Last Longer?"

**Cluster 4: Product Pages (Transactional)**
- Natural Rubber Mat Product Page
- Cork Yoga Mat Product Page
- Budget Eco-Friendly Mat Category

**Cluster 5: Lifestyle & Sustainability (Informational)**
- "Sustainable Yoga Practice: Beyond the Mat"
- "Why Women Choose Eco-Friendly Yoga Mats"

---

**Strategy Note:** Prioritize long-tail and question-based keywords initially (low difficulty), then expand to head keywords as domain authority builds. Create pillar pages for primary keywords and cluster supporting blog content around them.
Judge notes: The output is well-structured and usable, but the keyword suggestions are generic and obvious (any SEO beginner could guess these without AI), the "eco-friendly yoga mat subscription" transactional keyword is a dubious inclusion for a small store, and the content cluster ideas lack specificity to the stated audience (women 25-45, sustainability-focused) that would make them truly actionable.
GPT-5.4 8/10
# Keyword Research Report: Eco-Friendly Yoga Mats

## 1) 10 Primary Head Keywords
| Keyword | Intent | Difficulty |
|---|---|---|
| eco friendly yoga mat | Commercial | High |
| sustainable yoga mat | Commercial | High |
| natural rubber yoga mat | Commercial | Medium |
| cork yoga mat | Commercial | Medium |
| non toxic yoga mat | Commercial | High |
| biodegradable yoga mat | Informational/Commercial | Medium |
| yoga mat for hot yoga | Commercial | High |
| eco yoga accessories | Commercial | Medium |
| yoga mats made in usa | Commercial | Medium |
| best eco yoga mat | Commercial | High |

## 2) 15 Long-Tail Keywords
| Keyword | Intent | Difficulty |
|---|---|---|
| best eco friendly yoga mat for hot yoga | Commercial | Medium |
| natural rubber and cork yoga mat | Commercial | Low |
| non toxic yoga mat for home practice | Commercial | Medium |
| sustainable yoga mat for sweaty hands | Commercial | Medium |
| cork yoga mat for women | Commercial | Low |
| eco friendly yoga mat for beginners | Commercial | Medium |
| biodegradable yoga mat alternative to pvc | Informational/Commercial | Low |
| best natural rubber yoga mat for grip | Commercial | Medium |
| cork yoga mat easy to clean | Informational/Commercial | Low |
| durable sustainable yoga mat for daily use | Commercial | Medium |
| thick eco friendly yoga mat for bad knees | Commercial | Medium |
| lightweight cork yoga mat for travel | Commercial | Medium |
| plastic free yoga mat | Commercial | Medium |
| eco friendly yoga mat gift for yogi | Transactional | Low |
| premium sustainable yoga mat online | Transactional | Low |

## 3) 10 Question-Based Keywords
| Keyword | Intent | Difficulty |
|---|---|---|
| what is the best eco friendly yoga mat | Informational/Commercial | Medium |
| are cork yoga mats good for hot yoga | Informational | Low |
| is natural rubber yoga mat better than pvc | Informational | Medium |
| how to clean a cork yoga mat | Informational | Low |
| are eco friendly yoga mats non toxic | Informational | Low |
| how long do natural rubber yoga mats last | Informational | Low |
| what yoga mat is best for sweaty hands | Informational/Commercial | Medium |
| are cork yoga mats worth it | Informational/Commercial | Low |
| which yoga mat is most sustainable | Informational | Medium |
| what thickness yoga mat is best for beginners | Informational | Medium |

## 4) 5 Commercial/Transactional Keywords
| Keyword | Intent | Difficulty |
|---|---|---|
| buy eco friendly yoga mat | Transactional | Medium |
| shop cork yoga mat online | Transactional | Low |
| natural rubber yoga mat free shipping | Transactional | Low |
| eco friendly yoga mat sale | Transactional | Medium |
| best price sustainable yoga mat | Transactional | Medium |

## 5) 5 Content Cluster Ideas by Search Intent

### A. Product Comparison Cluster
**Intent:** Informational → Commercial  
- eco friendly yoga mat  
- best eco yoga mat  
- is natural rubber yoga mat better than pvc  
- are cork yoga mats worth it  
- which yoga mat is most sustainable  

### B. Material Benefits Cluster
**Intent:** Informational  
- natural rubber yoga mat  
- cork yoga mat  
- non toxic yoga mat  
- biodegradable yoga mat  
- are eco friendly yoga mats non toxic  

### C. Use-Case Cluster: Grip, Sweat, Comfort
**Intent:** Commercial  
- yoga mat for hot yoga  
- best natural rubber yoga mat for grip  
- sustainable yoga mat for sweaty hands  
- thick eco friendly yoga mat for bad knees  
- what yoga mat is best for sweaty hands  

### D. Care, Maintenance, Longevity Cluster
**Intent:** Informational  
- how to clean a cork yoga mat  
- cork yoga mat easy to clean  
- how long do natural rubber yoga mats last  
- durable sustainable yoga mat for daily use  

### E. Purchase-Ready Cluster
**Intent:** Transactional  
- buy eco friendly yoga mat  
- shop cork yoga mat online  
- premium sustainable yoga mat online  
- natural rubber yoga mat free shipping  
- eco friendly yoga mat sale  

**SEO note:** Prioritize product pages around “eco friendly yoga mat,” “cork yoga mat,” and “natural rubber yoga mat,” and use blog content to capture education-led searches that funnel readers into comparison and purchase pages.
Judge notes: Highly usable and well-structured output that matches the brief precisely, but the "yoga mat for hot yoga" head keyword feels like a stretch for this specific niche, and a couple of long-tail keywords (e.g., "eco yoga accessories") lack the specificity the business context warrants.
Gemini 2.5 Pro 2/10
Of course. Here is a comprehensive keyword research report for your eco-friendly yoga mat store.

### Keyword Research Report: Eco-Friendly Yoga Mats

This report outlines primary, long-tail, question-based, and commercial keywords to target for your blog and product pages. The content clusters provide a strategic framework for your SEO efforts.

---

### 1. Primary Head Keywords (10)

These are broader, foundational terms to target with your core product and category pages.

1.  **eco friendly yoga mat** (Intent: Commercial, Difficulty: Medium)
Judge notes: The output is severely truncated, containing only the first keyword entry and none of the required sections (long-tail keywords, question-based keywords, commercial/transactional keywords, or content clusters), making it essentially unusable for the stated task.
Grok 4.1 Fast Reasoning 7/10
# Eco-Friendly Yoga Mats Keyword Research Report

## 1. 10 Primary Head Keywords
- eco-friendly yoga mat (commercial, medium)
- natural rubber yoga mat (commercial, medium)
- cork yoga mat (commercial, medium)
- sustainable yoga mat (informational, medium)
- non-toxic yoga mat (informational, low)
- biodegradable yoga mat (informational, low)
- organic yoga mat (commercial, medium)
- vegan yoga mat (informational, low)
- eco yoga mat (commercial, low)
- green yoga mat (informational, low)

## 2. 15 Long-Tail Keywords
- best eco-friendly yoga mats for women (commercial, medium)
- natural rubber yoga mat thick grip (commercial, low)
- cork yoga mat sustainable non-slip (commercial, medium)
- sustainable yoga mats made in USA (transactional, medium)
- non-toxic natural rubber yoga mat (informational, low)
- biodegradable cork yoga mat review (informational, low)
- organic yoga mat for hot yoga (commercial, medium)
- vegan cork yoga mat eco-friendly (informational, low)
- thick natural rubber yoga mat sustainable (commercial, low)
- best sustainable yoga mat for beginners (commercial, medium)
- eco-friendly yoga mat natural materials (informational, low)
- cork and rubber yoga mat hybrid (commercial, medium)
- non-slip eco yoga mat for home practice (transactional, low)
- sustainable yoga gear for women (informational, medium)
- biodegradable yoga mat natural cork (informational, low)

## 3. 10 Question-Based Keywords
- what is the best eco-friendly yoga mat? (commercial, medium)
- are natural rubber yoga mats sustainable? (informational, low)
- what are cork yoga mats good for? (informational, low)
- how to choose sustainable yoga mat? (informational, medium)
- is cork yoga mat non-slip? (informational, low)
- what makes a yoga mat biodegradable? (informational, low)
- best vegan yoga mat for women? (commercial, medium)
- are organic yoga mats worth it? (commercial, low)
- how eco-friendly are natural rubber mats? (informational, low)
- which sustainable yoga mat for hot yoga? (commercial, medium)

## 4. 5 Commercial/Transactional Keywords
- buy eco-friendly yoga mat online (transactional, medium)
- shop natural rubber yoga mat (transactional, medium)
- cork yoga mat for sale (transactional, low)
- sustainable yoga mat discount (transactional, medium)
- order non-toxic yoga mat US (transactional, low)

## 5. 5 Content Cluster Ideas
1. **Sustainability Basics** (informational): Group "sustainable yoga mat", "biodegradable yoga mat", "are natural rubber yoga mats sustainable?" for blog on eco-materials.
2. **Product Reviews & Comparisons** (commercial): "best eco-friendly yoga mats for women", "what is the best eco-friendly yoga mat?", "cork yoga mat review" for comparison posts.
3. **Buying Guides** (commercial/transactional): "buy eco-friendly yoga mat online", "how to choose sustainable yoga mat", "best sustainable yoga mat for beginners" for product page support.
4. **Material Spotlights** (informational): "natural rubber yoga mat", "cork yoga mat", "non-toxic natural rubber yoga mat" for deep-dive blogs.
5. **Yoga Practice Tips** (informational/commercial): "eco yoga mat for home practice", "sustainable yoga mat for hot yoga", "which sustainable yoga mat for hot yoga?" for lifestyle content.

*(Total: 498 words)*
Judge notes: The output is well-structured and directly responsive, but the content cluster section is thin and generic (lacks clear linking strategy or pillar/spoke rationale), and several keywords like "green yoga mat" and "eco yoga mat" are vague filler entries that reduce research quality.

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