Cosine
by Cosine
AI software engineering agent with Swarm mode for parallel multi-agent execution across CLI, desktop, and cloud.
Cosine is a YC-backed AI software engineering agent that operates across CLI, desktop, and cloud as one unified runtime. Its Swarm mode spawns parallel agents with an Orchestrator, Task Owner, and Worker hierarchy for complex refactors and system-wide migrations. Model-agnostic with support for Claude, GPT, Gemini, and Kimi. Features include persistent project memory, MCP tool connections, git-native version control, and VPC or on-prem deployment for enterprise.
Pricing
subscription · $20
Segment
b2b
Setup
easy
Verified
Apr 23, 2026
Capabilities
Pros & Limitations
Editorial assessmentPros
- ✓Swarm mode spawns parallel specialized agents for complex refactors that would take a single agent hours
- ✓One unified runtime across CLI, desktop, and cloud with persistent project memory across sessions
- ✓Model-agnostic with support for Claude, GPT, Gemini, and Kimi including existing subscription passthrough
Limitations
- ⚠Token-based pricing can be unpredictable for heavy usage on large codebases
- ⚠Newer entrant competing against well-established tools like Cursor and Devin
- ⚠Swarm mode coordination overhead may not justify cost for smaller single-file tasks
Technical Details
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