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DeepClaude – Claude Code agent loop with DeepSeek V4 Pro, 17x cheaper

A major breakthrough in conversational AI efficiency has emerged with the integration of Claude Code's agent loop and DeepSeek V4 Pro, slashing costs by 17 times and enabling seamless large-scale dialogue management. This strategic pairing leverages the strengths of Claude's multimodal capabilities and DeepSeek's advanced natural language processing to deliver a highly scalable and cost-effective solution. The implications for enterprise chatbots and voice assistants are profound. AI-assisted, human-reviewed.

Adam J (AI-assisted) 1 min read EN

DeepClaude is a configuration layer that lets you run Anthropic's Claude Code autonomous agent loop with DeepSeek V4 Pro, OpenRouter, or Fireworks AI as the underlying model — reducing API costs by up to 17x while keeping Claude Code's tool-use, file editing, bash execution, subagent spawning, and multi-step coding loops unchanged.

What it does

Claude Code is a terminal-based autonomous coding agent that uses tool loops to read, write, edit files, run bash commands, search with glob/grep, spawn subagents, and manage git operations. Its main drawback is cost: Anthropic's API pricing for Claude Opus is $15 per million output tokens, and the $200/month Max plan has usage caps.

DeepSeek V4 Pro scores 96.4% on LiveCodeBench and costs $0.87 per million output tokens — roughly 17x cheaper. DeepClaude intercepts Claude Code's API calls and redirects them to DeepSeek (or another backend) while leaving the agent loop infrastructure intact.

How to install it (2 minutes)

  1. Get a DeepSeek API key at platform.deepseek.com, add $5 credit, copy your key.
  2. Set the environment variable:
    • Windows (PowerShell): setx DEEPSEEK_API_KEY "sk-your-key-here"
    • macOS/Linux: echo 'export DEEPSEEK_API_KEY="sk-your-key-here"' >> ~/.bashrc then source ~/.bashrc
  3. Install the script:
    • Windows: Copy-Item deepclaude.ps1 "$env:USERPROFILE\.local\bin\deepclaude.ps1"
    • macOS/Linux: chmod +x deepclaude.sh && sudo ln -s "$(pwd)/deepclaude.sh" /usr/local/bin/deepclaude
  4. Run: deepclaude

Supported backends and pricing

Backend Flag Input/M Output/M Notes
DeepSeek (default) --backend ds $0.44 $0.87 Auto context caching (120x cheaper on repeat turns)
OpenRouter --backend or $0.44 $0.87 Cheapest from US/EU
Fireworks AI --backend fw $1.74 $3.48 Fastest inference, US servers

Sources 1

  1. 01 Source https://github.com/aattaran/deepclaude
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