StartupColumbus, OH · Seed (YC S23)
Morph
Fast specialized models for coding agents: apply, search, compaction and routing.
Morph (YC S23) provides a model API for coding agents. Fast Apply models merge LLM-generated edits into files (the site cites 10,500 tok/s), WarpGrep is a code-search subagent, and Compact compresses context while keeping original bytes; it also serves open-weight agent-loop models and a router. Access is via an OpenAI-compatible API, TypeScript and Python SDKs, OpenRouter, an MCP server, and CLI/skills for Claude Code, Cursor, Codex and OpenCode, with self-hosting for enterprise. YC lists founder Tejas Bhakta and Columbus, OH.
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)
New York, NY · Est. 2021
Serverless cloud built for AI and agentic compute.
Modal lets teams run inference, fine-tuning and arbitrary agent workloads as serverless Python without managing infrastructure — a common substrate for harness backends at scale.
Seattle, WA · Est. 2019
Durable execution for long-running agent workflows.
Temporal's durable execution engine is widely adopted to make agent pipelines reliable: state survives crashes, retries are automatic, and workflows run for minutes or months. A key piece of serious harness infrastructure.
$430M total · $300M Series D (Feb 2026) at $5B valuation
Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Built on · 3
- Claude CodeProject
- CodexProject
- Model Context ProtocolProject
Sources
Verified Oct 29, 2026