Startup
Cosine
Sovereign AI lab building post-trained coding models and autonomous coding agents.
Cosine builds autonomous software-engineering agents for large existing codebases, built on its own post-trained models, including Genie and the Lumen family (Lumen Scout, Lumen Outpost). Work is assigned through Jira, GitHub or Slack; the agent plans, writes and runs code in a sandbox, tests and validates, then submits PRs for review. It offers CLI, desktop and cloud surfaces with parallel sub-agents and MCP, and deploys to public cloud, single-tenant cloud or air-gapped on-premise environments, with post-training for niche languages such as COBOL and Verilog.
Neighbours in the directory
San Francisco, CA · Est. 2023
Devin, the AI software engineer, and the Windsurf IDE.
Cognition builds Devin, an autonomous AI software engineer that plans and executes engineering tasks end-to-end, and acquired the Windsurf agentic IDE in 2025. One of the defining startups of the coding-agent wave.
~$10.2B valuation (Sep 2025)
San Francisco, CA · Est. 2022
The AI-native code editor where agent mode lives.
Cursor rebuilt the IDE around models: tab completion, in-editor chat and agent mode that plans multi-file edits and runs commands. Its rise set the pace for the entire coding-agent market.
~$29B valuation (late 2025)
San Francisco, CA · Est. 2023
Droids: AI workers for software teams.
Factory's 'droids' take engineering tickets from issue to pull request, with sandboxed environments and enterprise controls — agents as members of the dev workflow.
Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Built on · 1
- Model Context ProtocolProject
Sources
Verified Oct 29, 2026