The best coding agent for open models

Magnitude matches the performance of Claude Code at 5x lower token prices.

## Lives in the terminal

Magnitude terminal interface
  1. 1 Run to download
  2. 2 Run which will ask for an API key
  3. 3 Sign up to get your free API key

## Why Magnitude?

Easy setup

One API key and you're up and running.

Reliable

We fix common open model failure modes.

Best models

We constantly test new model setups.

Web search

Built-in web search that is fast and reliable.

Private

Zero data retention on your prompts and code.

Transparent

API prices with no markup, $5 free credits.

## What's under the hood?

  • Constrained decoding. Custom GBNF grammar that prevents common open model failure modes like overthinking and malformed tool calls.

  • Robust streaming parser. Speculative execution with rollback resolves ambiguous decision points that break naive parsers on open model output.

  • Harness reliability. Mid-stream schema validation and structured error feedback ensure the model always gets a corrective signal to work off.

Want to chat about your use case for open models?

Book a call with our founder →
$ npm i -g @magnitudedev/cli
Get started free
Backed by Y Combinator