What Magnitude does

Magnitude is a coding agent built specifically for open-weight language models. It offers a terminal-based coding agent comparable in workflow to proprietary tools, with the goal of delivering strong performance on open models at lower token cost.

Key capabilities

To make open models reliable for agentic coding, Magnitude uses constrained decoding with a custom grammar to prevent common failures such as overthinking and malformed tool calls. It includes a streaming parser with speculative execution and rollback, mid-stream schema validation, structured error feedback and built-in web search. Installation is a single npm command, and the company describes transparent, no-markup API pricing with free starter credits.

Who it's for

Magnitude is built for developers and teams who want to build with open models rather than proprietary alternatives. It is backed by Y Combinator and maintains a community presence on Discord and GitHub.