Replacing Claude with DeepSeek V4 in Claude Code: 30-Day, 100M-Token Cost & Quality Test

Replacing Claude with DeepSeek V4 in Claude Code: 30-Day, 100M-Token Cost & Quality Test TL;DR — Running Claude Code on DeepSeek V4 instead of Claude Opus 4.6 cuts your API bill by 98.7% at equivalent token volumes. We ran the numbers on 100 million ...