Kimi K3.1 Pro Review: Near-Opus Quality at 1/5th the Cost

Claude Opus 5.5 and GPT-6 Astra are strong performers in coding and complex reasoning. But how does Kimi K3.1 Pro compare? Moonshot AI’s latest model delivers competitive coding-agent benchmark results, a 1-million-token context window, and promising performance on financial tasks. Beyond the headline numbers, the real question is how well it handles complex, multi-step tasks…