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Gissur Runarsson

I build Bersyn: see who ChatGPT, Claude, Gemini and Perplexity recommend in your category, and who they name instead of you. Type your domain at bersyn.com, 15 seconds, no signup.

Location Reykjavík Iceland Joined Joined on  Email address gissur@qualitas.is Personal website https://www.bersyn.com/

Education

University of Iceland

Pronouns

He/him/his

Work

Sales and marketing at Tero by day. Building Bersyn, AI recommendation intelligence, by night.

Why AI recommends the same tools every time, and which slots you can actually win
gthorr profile

Why AI recommends the same tools every time, and which slots you can actually win

#ai #marketing #startup #seo
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3 min read

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I asked four AI models which database to use in 2026. Neon already won. Four challengers are invisible.
gthorr profile

I asked four AI models which database to use in 2026. Neon already won. Four challengers are invisible.

#ai #database #webdev #saas
Comments
2 min read
I asked four AI models which observability tool to use in 2026. They keep naming Datadog and Splunk, and never Better Stack.
gthorr profile

I asked four AI models which observability tool to use in 2026. They keep naming Datadog and Splunk, and never Better Stack.

#observability #devops #ai #startup
Comments
4 min read
I asked four AI models which notification infrastructure to use in 2026. Three of them still send you to Twilio.
gthorr profile

I asked four AI models which notification infrastructure to use in 2026. Three of them still send you to Twilio.

#webdev #ai #saas #startup
Comments
3 min read
I asked four AI models where to deploy a SaaS app in 2026. Three of them never mention Railway, Render or Fly.
gthorr profile

I asked four AI models where to deploy a SaaS app in 2026. Three of them never mention Railway, Render or Fly.

#webdev #devops #ai #startup
Comments
3 min read
ChatGPT and Claude flatly disagree about which developer tools to recommend. I have the receipts.
gthorr profile

ChatGPT and Claude flatly disagree about which developer tools to recommend. I have the receipts.

#ai #devtools #chatgpt #startup
1
Comments
4 min read
I asked four AI models which authentication tool to use, then scanned the challengers. Auth0 and Okta own the answer. Here is who AI ignores.
gthorr profile

I asked four AI models which authentication tool to use, then scanned the challengers. Auth0 and Okta own the answer. Here is who AI ignores.

#ai #saas #authentication #geo
1
Comments
5 min read
Day 34 of trying to get 20 paying customers in 40 days. Still at 0. Here is what changed.
gthorr profile

Day 34 of trying to get 20 paying customers in 40 days. Still at 0. Here is what changed.

#buildinpublic #startup #ai #marketing
1
Comments
4 min read
Day 7 of trying to get 20 paying customers in 40 days. Currently at 0.
gthorr profile

Day 7 of trying to get 20 paying customers in 40 days. Currently at 0.

#startup #buildinpublic #marketing #ai
Comments 2
2 min read
We ran Bersyn on Bersyn — what ChatGPT, Claude, Perplexity and Gemini are saying about our own brand
gthorr profile

We ran Bersyn on Bersyn — what ChatGPT, Claude, Perplexity and Gemini are saying about our own brand

#showdev #ai #geo #saas
1
Comments
8 min read
Bersyn — what the name means, where it came from, and what it is not
gthorr profile

Bersyn — what the name means, where it came from, and what it is not

#saas #startup #marketing #branding
Comments
7 min read
We scanned 8 B2B SaaS companies across 5 categories. ChatGPT named the same 12 brands in every answer.
gthorr profile

We scanned 8 B2B SaaS companies across 5 categories. ChatGPT named the same 12 brands in every answer.

#geo #ai #saas #startup
Comments
4 min read
Your SaaS is probably invisible to AI and you dont know it
gthorr profile

Your SaaS is probably invisible to AI and you dont know it

#saas #ai #marketing #webdev
1
Comments 1
2 min read
I opened up free AI scans — here's what AI actually says about your product
gthorr profile

I opened up free AI scans — here's what AI actually says about your product

#ai #saas #webdev #productivity
1
Comments
2 min read
I asked ChatGPT, Claude, Perplexity, and Gemini about 10 SaaS products. Here's what they got wrong.
gthorr profile

I asked ChatGPT, Claude, Perplexity, and Gemini about 10 SaaS products. Here's what they got wrong.

#saas #ai #startup #marketing
1
Comments 2
4 min read
Why Building a Custom CSV Import Feature Takes Months — And How Importkit Solves It in Minutes
gthorr profile

Why Building a Custom CSV Import Feature Takes Months — And How Importkit Solves It in Minutes

#react
1
Comments
4 min read
AI systems are already describing your product to buyers
gthorr profile

AI systems are already describing your product to buyers

#b2b #saas #startup #ai
1
Comments 6
2 min read
I Asked ChatGPT, Perplexity, Claude, and Gemini About My SaaS. Here’s What They said!
gthorr profile

I Asked ChatGPT, Perplexity, Claude, and Gemini About My SaaS. Here’s What They said!

#saas #ai #marketing #startup
1
Comments 3
3 min read
How to Add CSV Upload Functionality to Your React SaaS App in 2026
gthorr profile

How to Add CSV Upload Functionality to Your React SaaS App in 2026

Comments
4 min read
AI Is Quietly Deciding Which SaaS Tools Exist
gthorr profile

AI Is Quietly Deciding Which SaaS Tools Exist

#saas #startup #ai #marketing
1
Comments 2
2 min read
ImportKit vs Flatfile: The Best Affordable Alternative for Small Startups in 2026
gthorr profile

ImportKit vs Flatfile: The Best Affordable Alternative for Small Startups in 2026

#webdev #react #ai #programming
Comments
9 min read
How to Use ImportKit: Add CSV/Excel Import to Your React App in 10 Minutes
gthorr profile

How to Use ImportKit: Add CSV/Excel Import to Your React App in 10 Minutes

#react #typescript #javascript #webdev
Comments
5 min read
How I Replaced Weeks of CSV Import Code With One React Component
gthorr profile

How I Replaced Weeks of CSV Import Code With One React Component

#saas #react #csv #devops
Comments
2 min read
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