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Cosine CLI

Cosine CLI

AI pair programming directly in your terminal

Overview

What it is

Cosine is an AI software engineer that operates across the CLI, cloud, and desktop, designed to complete tasks end-to-end without human supervision. It understands your codebase, plans, writes changes, and opens PRs. Working asynchronously, devs can assign multiple tickets all at once to Cosine, then come back to review and merge PRs. Tackle messy backlogs, fix bugs, and prototype faster without changing workflow.

Intent

I need it when

Integrate AI coding assistance into existing terminal-native development workflow without switching tools

CLI provides terminal-native interface (TUI) for interactive sessions and one-shot tasks. Supports local-to-remote execution, MCP tool access, project context, and multi-agent orchestration from command line. Developers stay in terminal workflow while accessing Cosine's autonomous capabilities.

Deploy AI coding agent in regulated or security-sensitive environment with data isolation guarantees

Cosine offers three deployment options: public cloud (fastest), dedicated single-tenant VPC (enterprise isolation), or fully air-gapped (zero data egress). Enterprise plan includes custom model weights on own GPUs or trusted vendors. Supports post-training on internal codebases and legacy languages.

Scale AI coding assistance across team with controlled credit allocation and audit trails

Seat-based model with monthly Cosine Credit pool per user enables team scaling. Each seat contributes credits to shared pool; additional seats increase both user count and total capacity. Credit consumption tracked per task, providing visibility into agent usage and cost allocation across team.

Automate complex coding tasks and refactoring across large codebases while maintaining code quality and visibility

Cosine CLI enables autonomous agent execution of multi-step engineering tasks directly from terminal. Agent retrieves code context, plans solutions, writes and tests code with minimal diffs matching codebase style. Behavioral RL training reduces unnecessary complexity and duplication, helping teams ship maintainable code faster without sacrificing visibility into agent decisions.

Analyze and understand complex repository structure and generate context for AI-assisted development

CLI automatically analyzes repo structure and generates AI-context files. Supports Git-based change review with Agent Commits for per-turn visibility and reversibility. Helps teams maintain code review standards while leveraging AI automation.

Drop

Not a fit when

  • User requires fully offline/air-gapped deployment without enterprise contract; CLI requires cloud authentication and API connectivity for standard usage
  • Organization has strict data residency requirements and cannot use public cloud; only available via dedicated tenant or air-gapped enterprise deployment
  • Team needs real-time code completion in IDE without agent-based task execution; CLI is task-oriented, not a traditional autocomplete tool
  • Budget is under $20/month per user; Hobby plan is minimum paid tier at $20/seat/month
  • User works exclusively in non-supported languages without enterprise custom training; Lumen model optimized for C, R, Matlab, Fortran, Verilog, Rust but mainstream language support primary
Commercials

Pricing

USD20 - USD200 / monthly View pricing