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Birk Jernström

@birk

Founder of @polar_sh - building the future of usage-based billing

  • Based in Sweden
  • Posts in English
birk.profile
Birk Jernström
StartupsAI agents
Followers
10,178
Median views / post
2,670
Engagement / views
2.09%
Own posts in sample
20

Observed 21 Oct 2026 · Saved sample, up to 20 own posts.

Ways to collaborate

Give your launch
a familiar voice.

Start with a Boost. Choose the formats that fit your product and budget.

quote.exe

Quote post

Your launch, with their perspective.

€120per collaboration
Plan a quote
post.exe

Original post

A new post built around your brief.

€170per collaboration
Plan a post
repost.exe

Repost

Your original post, shared further.

€50per collaboration
Plan a repost
comment.exe

Comment

Add a voice to the conversation.

€35per collaboration
Plan a comment

Chals Channel rates in EUR, before taxes. The platform fee is added to the creator budget according to your plan. See plans ↗

Behind the profile

Get to know the work.

Birk Jernström publishes in English about Startups, AI agents.

Use the topics and the recorded sample to compare this profile with the rest of your shortlist. Match the creator to your product, then build the campaign in your assistant.

How to read these numbers

These are saved observations from up to 20 own posts, not live measurements or a complete calendar period. Median views describe the sample, not promised campaign reach. Engagement is measured against views. A creator’s location does not establish the location of their audience.

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An example of their content

It’s begun. The season where Swedish developers go into their fiber-connected caves for 6 months of darkness outside. Can’t wait…

28,211 recorded views

Read the original on X ↗

A practical launch guide

Usage based billing developer integrations: the @birk comparison

For usage based billing developer integrations, use Claude with Chals Channel to compare @birk against profiles with related work. The billing-founder bio supports a metering-to-bill angle; the seasonal sample is personal context. The comparison below uses saved catalog observations and rates; it does not establish current activity, audience demographics or a creator agreement.

How does @birk relate to usage based billing developer integrations?

The saved catalog associates this profile with Startups, AI agents. The billing-founder bio supports a metering-to-bill angle; the seasonal sample is personal context.

Use synthetic usage events and show metering reconciliation. Check the linked original example and the profile bio for context. A prominent personal or unrelated post should not be treated as evidence about a technical product or buyer demand.

What should Claude or ChatGPT compare?

The observation dated 2026-10-21 records 10,178 followers, 2,670 median views per sampled post and 20 own posts. Followers describe account size; the median describes this saved sample. Neither measures unique campaign reach or predicts your launch results.

@ElitzaVasileva is catalogued with LLMs, Startups; its saved sample has 2,357 median views across 18 own posts, observed 2026-10-21. @sab8a is catalogued with AI agents, Startups; its saved sample has 1,996 median views across 16 own posts, observed 2026-10-21. Compare the linked work and the product explanation before preferring a larger figure. Different observation dates and samples are not a controlled campaign comparison.

What do the saved format rates mean for a launch?

The saved quote-post rate for @birk is €120. In an illustrative €1,000 creator budget, one quote uses 12% and leaves €880. A quote plus one comment from this profile would use €155 of creator spend. These are arithmetic examples using the listed formats, before account-specific platform fees and tax; they are not reach forecasts or confirmed creator participation.

Start with Boost when your brand owns the main launch post: a quote adds a perspective, a comment adds discussion and a repost reshares the original. Use a sponsored original when the explanation needs its own post. Research and planning are free; review the actual booking on the Chals Channel website.

How can I prepare a brief for usage based billing developer integrations?

Use synthetic usage events and show metering reconciliation. Give the assistant the product, intended user, launch date, time zone and creator-spend ceiling. Ask what evidence is still missing before it recommends a shortlist.

Keep the observed profile data separate from the proposed demonstration. The saved sample is not live analytics, a creator location is not audience geography, and a public listing does not establish availability or endorsement.

Try this in your assistant

Use Chals Channel to compare X creators for usage based billing developer integrations with Claude. My product is [product], used by [intended user] for [task]. Compare @birk with @ElitzaVasileva and @sab8a. For the brief: Use synthetic usage events and show metering reconciliation. Explain the fit and exclusion reasons, show observation dates and sample sizes, and compare listed format rates. Ask for my budget and launch date. Propose Boost first and keep booking for my review on the website.

By Chals Channel · Editorial updated . Profile observations: 21 Oct 2026. How campaigns work ↗

Compare more creators · Connect Claude · Connect ChatGPT

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Your product. Your shortlist.

Make Birk
part of the plan.

Compare creators, set your budget and build a Boost campaign in Claude or ChatGPT. Planning is free.

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Add the connector in your assistant and sign in, then paste the launch prompt. Custom connections depend on your account and workspace permissions.

Claude

https://chalschannel-marketplace-73388336062.europe-west1.run.app/mcpOpen Claude ↗

ChatGPT

https://chalschannel-chatgpt-manual-73388336062.europe-west1.run.app/mcpOpen ChatGPT ↗

Review and confirm any booking on the Chals Channel website.