DeepSeek V4 in Claude Code: Anthropic-Compatible API with Native Web Search
TL;DR — DeepSeek ships an Anthropic-compatible API endpoint that lets Claude Code treat DeepSeek V4 Pro like a drop-in replacement for Claude Opus. The setup is eight environment variables, and it works — including tool calling, sub-agent spawning, and native web search. At $0.435/M input tokens (permanent price after the initial launch promo), it’s roughly 4–17× cheaper than Claude Opus 4.7. This is a practical guide based on a real setup we run daily. ...