Tool-Call Repairs Let DeepSeek v4 Beat Opus 4.7 in Internal Evals
Ahmad Awais, founder of CommandCode.ai, argues that many open models appear weak at coding-agent work because the harness around them mishandles tool schemas, design instructions and user preferences. Drawing on Command Code’s internal logs and evals, he says small deterministic repairs to tool inputs helped DeepSeek v4 Pro beat Opus 4.7 in six of ten internal comparisons. His broader case is that “taste” — explicit contracts for tools, design patterns and developer habits — can narrow the gap between cheaper open models and frontier coding systems without changing the model itself.
Latent Space·Jun 6, 2026·14 min read
