Share a lesson from your work.
Notes
Turn a lesson you’ve noted down into a post that helps someone facing the same problem.
Beta
Weekly social posts.
From your own work.
Lantern turns your notes, documents and call transcripts into LinkedIn drafts.
You review them and publish the ones you like.
See it work
Watch your material
become a post.
Product walkthrough coming soon
A walkthrough will appear here.
You explain your work in meetings, notes and documents.
You shouldn’t have to start from scratch on social media.
What people use it for
Four ways to share your expertise.
Explain a process.
Documents
Use a project document to explain the steps you took and why you chose that approach.
Answer a recurring question.
Meeting transcripts
Draw on a question you’ve answered in a meeting to write advice others can use.
Share your point of view.
Your perspective
Explain what you think about an issue in your field and invite others to weigh in.
- 01 / 05
Choose your material.
Choose the notes, documents and meeting transcripts you want Lantern to draw on.
Upload your calls, or connect Fathom, Fireflies or Granola, and Lantern finds post ideas in them. - 02 / 05
Tell Lantern what to cover.
Say which topics and angles to emphasize or avoid. Choose how many posts you want of each kind, such as client stories or how-to posts.
- 03 / 05
Review the post ideas.
Lantern turns your brief into a weekly content plan. Review the suggested post ideas and choose which ones to develop into drafts.
- 04 / 05
Edit each draft.
Read each draft, check the facts and edit the wording before you mark it ready.
- 05 / 05
Send ready posts to Buffer.
Use Buffer, a social publishing tool, to schedule your reviewed posts for LinkedIn, X, Instagram and other networks.
You can schedule your posts with Buffer: LinkedIn, X, Threads, Bluesky, Facebook, Instagram and more.
You stay in charge
Review every post
before it goes out.
Give Lantern examples of your writing and tell it what to avoid. It uses both to guide the tone and wording of your drafts.
Check the facts, make your edits and send a post to Buffer when you’re ready.
- Most clients keep 1:1 notes in several places, so preparing a review means searching chats and docs.
- Our own team switched to one line of notes after every 1:1, and review prep dropped from about a day to about an hour.
- “The hard part wasn’t the model, it was getting one line after every meeting.”
- The first question should be where people repeat the same manual work, not where to add AI.
Every week someone brings an idea for where we could add AI. I used to weigh each one on its merits. Now I ask one question first: where do our people do the same thing by hand, over and over?
For us that was review prep. Every cycle, each manager lost a full day digging through chats and docs to remember what had happened back in spring.
The first fix had no AI in it. We started writing one line of notes after every 1:1, and only once those lines existed did an AI draft make sense. Prep now takes about an hour.
What did you automate first, and was it the boring part?
Inside Lantern
From a weekly plan
to posts you’re ready to share.
Review the week’s posts together.
See the proposed topics side by side, for every network, before you decide what to write and publish.
Set up your post types.
Choose how each kind of post is structured and where Lantern gets the material.
Use material you already have.
Calls, documents and notes become insights to post about.
Written in your voice.
Pick your style and add a post you wrote; every draft follows it.
Works with your tools.
Calls come in from your notetaker; ready posts go out through Buffer.
- FathomCalls and transcripts
- FirefliesCalls and transcripts
- GranolaMeeting notes
- BufferScheduling to every network
Run it from Claude.
Lantern’s MCP server has a tool for every step except publishing. That one stays with you.
- get_week
- list_insights
- add_insight_to_briefing
- add_angle
- generate_post
- update_post
Why not just use ChatGPT or Claude?
Here's what Lantern saves you.
A general AI assistant can write a good post if you give it the right transcript, explain your voice and describe the format. Lantern keeps all of that set up, so each week starts from your material, not from a new prompt.
| Every week | With a general AI assistant | With Lantern | Time saved* |
|---|---|---|---|
| Finding material | Find the right calls, copy the transcripts, paste them in | Calls arrive from Fathom, Fireflies or Granola. You tick the ones to use | ~90 min → ~5 min |
| Your voice | Explain your style again, or fix the tone post by post | Set once: your styles, sample posts and phrases to avoid | ~30 min → 0 min |
| Choosing topics | Ask for ideas, then sort through a long reply | A week plan of post ideas across networks, side by side | ~90 min → ~10 min |
| Post structure | Describe the format each time | Saved post types: client story, how-to, lesson learned, point of view | ~45 min → 0 min |
| Images | Design an image for each post in a separate tool | Image templates in your colours, with your logo, sized for each network | ~150 min → ~10 min |
| Total | ~6 hours 45 min | ~25 min | ~6 hours 20 min saved per week |
*Our estimate for 5 posts a week drawn from 2 to 3 calls. Editing time is not included, since you review every draft either way.
If you post once in a while, a general assistant is enough. If you want to post every week without starting over each time, Lantern is built for that.
Pricing
Start free.
Pay for the posts you need.
Credits pay for the drafting: a post takes about ten. Transcribing an uploaded call recording uses credits too, about 18 per hour of audio. Start with a free trial; paid plans renew monthly, change or cancel any time.
Free
100 credits in total
about 10 posts
$0 to try
- Up to 3 voices
- Calls from Fathom, Fireflies, Granola or a recording
- Publish to LinkedIn, X, Instagram and more through Buffer
★ Most popular
Pro
200 credits /month
about 20 posts
$8 /month
- Unlimited voices
- Calls from Fathom, Fireflies, Granola or a recording
- Publish to LinkedIn, X, Instagram and more through Buffer
Custom
1,000 credits /month
about 100 posts
5007501k1.5k2k3k5k10k
$35 /month
- Unlimited voices
- Calls from Fathom, Fireflies, Granola or a recording
- Publish to LinkedIn, X, Instagram and more through Buffer
Second opinion
Is Lantern the right fit for you?
Let ChatGPT, Claude or Perplexity do the research for you. Click a button and see what your favourite AI says about Lantern.
Should I use Lantern to write my social posts?
Lantern is a content workspace built by Polar Bear. It turns your notes, documents and call transcripts into a week of post drafts for LinkedIn and other networks, written in your voice. You review every draft and publish the ones you like through Buffer. It is free to start, with 100 credits, about ten posts.
Questions
What to expect
when you get started.
When can I start?
Right away. Create an account, confirm your email and plan your first week. If you already have an account, sign in.
What does the free plan include?
A free trial: 100 credits in total, about ten posts, and up to three voices. To keep writing, Pro and Custom plans give you credits every month and unlimited voices.
What material can I use?
Use your own notes, documents and meeting transcripts. Calls come in from Fathom, Fireflies or Granola. You can also upload recordings, PDFs, Word documents and text files, or paste a transcript; Lantern transcribes recordings, which uses credits, about 18 per hour of audio. You choose which material Lantern draws on for each week’s posts.
How do posts get published?
Review and edit your posts in Lantern, then send them to Buffer, a social publishing tool, to schedule and publish. Besides LinkedIn, Lantern writes for X, Threads, Bluesky, Mastodon, Facebook, Google Business, Instagram and Pinterest, and can rewrite a post for another network in one click. No Buffer? One click copies the post and opens the network with it ready to publish.
Are my social media accounts safe?
Lantern never asks for your passwords and never logs in as you. Posts go out through Buffer, which connects to each network through its official connection, or you copy a post and publish it yourself. Lantern does not like, comment, follow or send invitations for you.
Will posting this way hurt my reach?
No. Buffer is an official LinkedIn Marketing Partner, so a post scheduled through it goes out by a route LinkedIn itself approves and is published like any other post on that network. Reach depends on how people respond to what you write, and every Lantern draft starts from your own material and gets your edits before it goes out.
Will my posts go viral?
We can’t promise that, and nobody honest can. Lantern helps you post regularly about what you actually see in your work, which is how most people build an audience over time.
How do I make the posts sound like me?
When you sign up, pick the styles that sound like you. Later you can add examples of your writing and phrases to avoid. Lantern uses that guidance when drafting, and you can edit each post before publishing.
Can I use it with my team or agency?
The current version is for your own content. Team and agency workflows are coming soon.
How is Lantern different from asking ChatGPT or Claude for a post?
A general assistant starts from an empty chat: you explain your work, paste your material and describe your style each time, and you get one post back. Lantern starts from what you already have. It reads your notes, documents and call transcripts, picks out what is worth posting about, plans a week across your post types and drafts each post in the voice you set up once. Every draft keeps its history, and finished posts go to Buffer.
Who built Lantern?
Lantern is built by Polar Bear, a people operations consultancy and AI products studio. Its co-founders, Pauline Bertry, Alexey Lobachev and Alexander Mikhailov, all came from McKinsey: Pauline built its Design Hubs and leads product, Alexey ran people programs there for ten years, and Alexander leads AI products and agents. Mykyta Klymenko, the tech lead, built software at Microsoft and American Express. Polar Bear uses Lantern for its own posts.
You’ve already done the thinking.
Share it with your audience.
Try Lantern for free and plan your first week of posts. A two-step setup picks your writing style and connects your call notetaker.
The free trial includes 100 credits, about ten posts. No card needed.