A better way to use LLMs
A better way to use LLMs
A better way to use LLMs
Backed by Y Combinator



More than a chat
One workspace. More than 100 models.
Branch your chat, reuse your process and guide the process with clarity.



A workspace for LLMs
Explore, iterate, investigate, and go deeper where it matters.
Explore, iterate, investigate, and go deeper where it matters.
Explore, iterate, investigate, and go deeper where it matters.
Visual context management to structure and control your workflows.
Visual context management to structure and control your workflows.
Visual context management to structure and control your workflows.
Access 100+ models within one workspace.
Access 100+ models within one workspace.
Access 100+ models within one workspace.
Works with PDFs, docs, presentations, and notes.
Works with PDFs, docs, presentations, and notes.
Works with PDFs, docs, presentations, and notes.
Do more than just chat
Do more than just chat
Do more than just chat
We’re building Spine because thinking deeply still matters. Building understanding is an ongoing process of noticing, questioning, connecting dots, and sharpening judgment.
Most AI tools and LLMs try to to do it for you, with results that are transactional, shallow, disposable. But serious work needs something different. Something structured enough to scale, flexible enough to evolve, and smart enough to stay out of the way.
Spine uses AI to support the way people already think, not to replace it. We automate the grunt work, help you map ideas as they grow, and make it easier to get from messy input to clear insight.
This is how better decisions get made. Not by shortcutting the process, but by giving people better tools to do it well.
We’re building Spine because thinking deeply still matters. Building understanding is an ongoing process of noticing, questioning, connecting dots, and sharpening judgment.
Most AI tools and LLMs try to to do it for you, with results that are transactional, shallow, disposable. But serious work needs something different. Something structured enough to scale, flexible enough to evolve, and smart enough to stay out of the way.
Spine uses AI to support the way people already think, not to replace it. We automate the grunt work, help you map ideas as they grow, and make it easier to get from messy input to clear insight.
This is how better decisions get made. Not by shortcutting the process, but by giving people better tools to do it well.
We’re building Spine because thinking deeply still matters. Building understanding is an ongoing process of noticing, questioning, connecting dots, and sharpening judgment.
Most AI tools and LLMs try to to do it for you, with results that are transactional, shallow, disposable. But serious work needs something different. Something structured enough to scale, flexible enough to evolve, and smart enough to stay out of the way.
Spine uses AI to support the way people already think, not to replace it. We automate the grunt work, help you map ideas as they grow, and make it easier to get from messy input to clear insight.
This is how better decisions get made. Not by shortcutting the process, but by giving people better tools to do it well.
Frequently asked questions
Why not just ChatGPT?
Answer 1
Why not just ChatGPT?
Answer 1
Why not just ChatGPT?
Answer 1
Is this an automation tool, like Zapier?
Answer 1
Is this an automation tool, like Zapier?
Answer 1
Is this an automation tool, like Zapier?
Answer 1
What kind of sources does Spine use?
Answer 1
What kind of sources does Spine use?
Answer 1
What kind of sources does Spine use?
Answer 1
Is my data secure?
Answer 1
Is my data secure?
Answer 1
Is my data secure?
Answer 1
