Magnitude builds a coding agent designed from the ground up around open-source models. The company claims it matches the performance of Claude Code at roughly 5x lower token prices. It targets developers who want capable autonomous coding without the cost of proprietary frontier models. Magnitude was part of Y Combinator's Summer 2025 batch and is based in San Francisco.
Magnitude
ActiveThe best coding agent for open models
Total raised
$500K
1 round
Stage
Seed
Jan 2025
Team
1-10
since 2025
Pricing
—
Founded
2025
San Francisco, United States
Agent-ready
—
Coding agent built from the ground up around open-source models
Autonomous code generation, editing, and task execution
Designed to lower token costs versus proprietary frontier-model agents
Positioned as an alternative to closed coding agents like Claude Code
Focus on capable autonomous coding for developers
Open-model-first architecture
Developer-oriented workflow integration
Y Combinator (Summer 2025) backing
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2025 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What is Magnitude?
- Magnitude is a coding agent built from the ground up around open-source models, designed for capable autonomous coding at lower token cost.
- How does it compare to Claude Code?
- The company positions Magnitude as matching Claude Code's performance while running on open models at roughly 5x lower token prices, per its own claims.
- Who is Magnitude for?
- It targets developers who want autonomous coding capability without the token costs of proprietary frontier models.
- Is Magnitude an established product?
- It was part of Y Combinator's Summer 2025 batch and is based in San Francisco.
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