Four tools.One thread.

Chat, code, search, and a slower kind of thinking.All of it stays in one conversation.

Open a chatSee the models

The lineup

Four models. One conversation. 
astro-5Flagship

Astro 5.3

The deepest reasoning and the widest range, including full code pipelines through Astro 5.3 Code.

taipei4-1Reasoning

Taipei 4.5

Structured thinking for research, architecture, and multi-step problems that deserve more than a first guess.

majuli4-1Everyday

Majuli 4.5

The balanced daily driver — fast enough to keep up, thoughtful enough to be worth asking.

suzhou4-1Instant

Suzhou 4.5

Light and immediate. Free for guests, no account required — start a conversation in one click.

What you can do with them.

Same thread. Different kinds of work.

Conversations. 01

  • Context that stays when you switch models
  • Think, Deep Research, and Study, stacked as you need them
  • Markdown, code, and LaTeX rendered as they stream
Open a chat

Code workspace. 02

  • Describe the thing. Tripplet writes the files.
  • A live preview that updates with the conversation
  • One-click deploy to a public URL
Open Code

Extended thinking. 03

  • Taipei 4.5 reasons before the answer you see
  • Simple questions stay fast. Hard ones get a budget.
  • Off until you ask for the extra depth
Try it in chat

Live web search. 04

  • Fresh results pulled into the reply as you ask
  • Citations you can open and check
  • Pairs with reasoning when the question needs both
See how search works
Open the thread.

Free to start. Guests get Suzhou 4.5 immediately. An account unlocks the rest of the lineup.

Start chatting
Tripplet — AI that works the way you think