DeepSeek V4.1 Flash 接入 Claude Code：成本降 13 倍
通过 Anthropic 兼容端点三行环境变量把 Claude Code 切到 deepseek-flash[1m]，输入/输出 $0.30/$1.20 每百万 token，周末半价；DeepSWE 77 胜 Opus 5 的 74，但 Terminal Bench 42 落后 52。
DEEPSEEK JUST MADE CLAUDE CODE 13X CHEAPER. 26X ON WEEKENDS. same terminal. same workflow. you just swap opus for v4.1 flash 1017. the part the launch posts skip: deepseek runs an anthropic compatible endpoint. 3 lines: export ANTHROPIC_BASE_URL=https://api.deepseek.com/anthropic export ANTHROPIC_AUTH_TOKEN=your_deepseek_key export ANTHROPIC_MODEL="deepseek-flash[1m]" then run claude like always. the math per 1M tokens, input / output: > opus 5.5: $4 / $20 > deepseek flash: $0.30 / $1.20 > off peak and weekends: $0.15 / $0.60 why it's that cheap: every layer has 384 experts. only 6 wake up per token. the other 378 sleep. that's the whale in the video. the catch, straight from deepseek's own table: > beats opus 5 on DeepSWE, 77 vs 74 > loses to opus 5 on Terminal Bench, 42 vs 52 so keep opus for the hard calls. let the whale do the grind. your claude code bill is a setting, not a law.
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