How to use Claude Haiku 5.5 on your LinkedIn inbox

What is Claude Haiku 5.5?

Anthropic's release notes for 7 October 2026 say this Anthropic: Release notes, Claude Help Center:

"We just launched Claude Haiku 5.5, the cheapest, fastest, and most capable small model we’ve released, designed for high-volume, cost-sensitive tasks."

Anthropic: Release notes, Claude Help Center

That is all the notes say about it. The rest of this page is about what that means for work on your LinkedIn, not about the model itself.

Which LinkedIn work is high-volume?

Most LinkedIn work is reading before it is writing. Some asks read a few things. Others read dozens of them before you get one useful answer:

• Every conversation where the other person wrote last and you never answered.
• Every conversation that went quiet, to decide which ones are worth a follow-up.
• Everyone who reacted to or commented on one of your posts.
• Every invitation waiting for your answer, with a short look at each person.

These long reads are the kind of high-volume task Anthropic's notes say Haiku 5.5 is designed for Anthropic: Release notes, Claude Help Center. A short list where each word matters is a different job.

What to ask Claude with Haiku 5.5

Start with asks that only read. Nothing on LinkedIn changes while they run:

• "Go through my LinkedIn inbox and list everyone whose last message I have not answered, with one line on what each one wants."
• "Look at the conversations that went quiet and sort them into two groups: worth a follow-up, and leave it."
• "List the invitations I received, read each person's profile in short, and tell me which ones work in my field. Do not accept any yet."

• who_is_waiting_on_meList the people whose last message you have not answered.
• who_went_coldList the conversations that went quiet.
• list_chat_messagesList the messages of one conversation, newest first.
• list_received_invitationsList the invitations you received and have not answered.
• get_profileRead one person's profile in short, with their recent posts and their company.

Then act on the short list it gives you, one person at a time:

• "Draft a two-line reply to the first three people on that list, and show me each one before you send it."
• "Accept the invitations from the people you marked as in my field."

• send_chat_messageSend a message into one conversation, with files, a voice note or a video note, or as an answer to one message.
• respond_to_invitationAccept or decline one invitation you received.

Does Haiku 5.5 change the daily limits?

No. The daily limit on each kind of LinkedIn action belongs to your account here, not to the model that asks for it. A long read still counts against the limit for the kind of action it uses, and a reply still counts as a message sent.

• "How much of my LinkedIn limits did I use today?"

get_usage answers with each count and each limit. What every action does, and its limit, is on the actions page.

Where to set it up

The steps to add the LinkedIn connector to Claude are on the Claude page. If you would rather have someone keep your inbox for you, the LinkedIn AI agent finds who is waiting on you and asks you before it sends.