Download for Mac
Show, don't hide
You should see what the agent is doing, not wait for the result.
We got annoyed so we
built something better
built something better
Meet Cosine, the coding agent built for maintainability, visibility, and
control across every developer surface
control across every developer surface
Cosine in your Terminal
A CLI agent that lives in your terminal, understands your repo, and executes with precision.
brew install CosineAI/tap/cos
Cosine in your Cloud
Cloud agents that run tasks in isolated environments with full visibility into every step.
Try nowCosine on your Desktop
A native macOS app with full codebase awareness, inline review, and autonomous task execution.
Built for engineers with taste
From model behavior to product design, Cosine reflects how we believe
developers want to work
Move faster in parallel
Real engineering work happens in parallel.
Less slop, fewer frustrations
Most tools generate noise. We train against it.
One system, not stitched tools
CLI, desktop, or cloud. Cosine works where you do.
Show, don't hide
You should see what the agent is doing, not wait for the result.
Move faster in parallel
Real engineering work happens in parallel.
Less slop, fewer frustrations
Most tools generate noise. We train against it.
One system, not stitched tools
CLI, desktop, or cloud. Cosine works where you do.
Show, don't hide
You should see what the agent is doing, not wait for the result.
Move faster in parallel
Real engineering work happens in parallel.
Less slop, fewer frustrations
Most tools generate noise. We train against it.
One system, not stitched tools
CLI, desktop, or cloud. Cosine works where you do.
Show, don't hide
You should see what the agent is doing, not wait for the result.
Move faster in parallel
Real engineering work happens in parallel.
Less slop, fewer frustrations
Most tools generate noise. We train against it.
One system, not stitched tools
CLI, desktop, or cloud. Cosine works where you do.
Inside Cosine
How we're building AI for real software engineering.
Built to run securely wherever your code lives
Start locally. Scale into secure environments when you need to. Cosine
works across personal, team, and regulated setups without changing how
you work.
Run locally, in the cloud, or inside your own infrastructure
Deploy in VPC, on prem, or air gapped environments
Keep code and data under your control
Works across individual workflows and complex team environments
How teams use Cosine
Real workflows from the team building and using Cosine everyday
From non-technical to shipping software
Building internal tools and personal apps without leaning on engineers.
Plan it first. Build it second.
Use context-first prompts to ship faster with agents.
Run big tasks and keep shipping.
Run swarms in parallel without slowing down or losing control.
From Figma handoff to shipped UI
Turn designs into production code with plain-English prompts.
