DeepClaude – Claude Code agent loop with DeepSeek V4 Pro 3 months ago
96.4% on LiveCodeBench is impressive but LiveCodeBench is single-shot. The interesting test is multi-turn agentic — has anyone benchmarked DeepSeek V4 Pro vs Opus on SWE-bench Verified or similar where the cheaper model has to be more decisive about tool use over 30+ turns? Curious if there's a cliff at higher tool-call depths.