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Not Diamond Code

Developer tool

by Not Diamond

Model router for coding agents: a local proxy that picks the model and reasoning effort for each step of a Claude Code session, in the terminal or in IDE extensions, to cut inference cost at frontier quality, with a dashboard of usage and savings.

Find alternatives to Not Diamond Code

What it does

• Model inference

Sources

Pricing

Pricing page · 18 Oct 2026

Pay-as-you-go for developers and small teams and an Enterprise plan on request; no free plan is shown.; "$0.05 per million tokens routed"; "Apply for access"

Description

Official documentation · 18 Oct 2026

"It automatically selects the model and reasoning effort for each step of a session, helping teams maintain frontier-level quality at 20%+ lower inference cost."

What it does

Official documentation · 18 Oct 2026

"Not Diamond Code selects the model and reasoning effort before each user and subagent turn, while engineers continue using the standard Claude Code interface."

Sold within

Pricing page · 18 Oct 2026

Published per-token rate on its own plan page; nothing stands above it.; "$0.05 per million tokens routed"

Name

Official documentation · 18 Oct 2026

"Not Diamond Code is our model router purpose-built for long-horizon coding-agent workloads."

URL

Official documentation · 18 Oct 2026

The product's own documentation home, linked from the company home page ("Not Diamond - Model Routing for Coding Agents").; "Not Diamond Code is our model router purpose-built for long-horizon coding-agent workloads."

Deployment

Official documentation · 18 Oct 2026

A local proxy on each developer machine plus a hosted routing service.; "A lightweight local proxy runs alongside the coding-agent harness and computes the derived metadata needed for routing."; "Only that metadata is sent to the Not Diamond optimization service"

Interfaces

Official documentation · 18 Oct 2026

Command-line proxy (notdiamond claude) and IDE extensions.; "The official Claude Code IDE extensions can route through the proxy too"

Intended for

Pricing page · 18 Oct 2026

"For developers and small teams"; "For enterprise teams ready to scale"

Also from Not Diamond

• Not Diamond API service

  Not Diamond selects language models for incoming queries and lets developers train custom routers on their own data.

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