← Cases
JapanTechnology and telecom2025 – ongoing

Classmethod

Software development with Claude Code

Classmethod reported that Claude Code generated 99% of a recent project's codebase

WorkingVendor case studyVendor ↗

Problem

Classmethod sought to deliver software projects more quickly.

Approach

The Japanese cloud integrator used Claude Code in software development. Anthropic reported that the tool generated almost all the code in a recent project.

Results

99%share of a recent project's codebase generated by Claude Code, as reported by AnthropicVendor case study[1]

Takeaway

The code-generation figure covered a particular project and did not establish an equivalent reduction in engineering hours.

Categories

Business function
IT and R&D
Innovation type
Process innovation
AI technology
Generative AI
Evidence
Vendor case study

Sources

Source summaries

[1]Anthropic29 Oct 2025

Anthropic named Classmethod among its Japanese customers using Claude in production work. It reported productivity gains and said Claude Code generated 99% of a recent project's codebase, without giving a measurement method.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
Open case page ↗