DeepClaude is sitting at 467 points and 179 comments on Hacker News today, and the GitHub repo has crossed 540 stars in a few days. The pitch is one line: keep Claude Code’s agent loop, swap Anthropic’s models for DeepSeek V4 Pro. The bill drops about 17x.
What it actually is
A self-hosted proxy. You point Claude Code at DeepClaude instead of api.anthropic.com, and your file edits, bash calls, multi-step planning, and subagent spawning all keep working — same CLI, same UX. The proxy translates the requests onto a different backend: DeepSeek V4 Pro at $0.87 per million output tokens, OpenRouter, or any Anthropic-compatible endpoint. You can switch backends mid-session if a long task starts costing real money.
Why developers care
Anthropic charges $15 per million output tokens for Sonnet-class output. A heavy Claude Code session can burn through $20 in an afternoon. DeepClaude turns that into roughly $1.20 of DeepSeek tokens with no change to the workflow. That arbitrage — same agent harness, 1/17 the cost — is exactly the trade the HN crowd is showing up for.
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