Claude Sonnet 5 vs GPT-4o 2026: Best for Devs?
d9ff;”>AI Tools category or the full Dev Productivity guide. $2 Sonnet 5 Input/M tokens (intro) Anthropic $2.50 GPT-5.4 Input/M tokens OpenAI 1M Sonnet 5 Context Window Anthropic 1.1s Sonnet 5 Avg Response (TTFT) our benchmark ↓ Feature Claude Sonnet 5 GPT-5.4 Winner API Input (per M tokens) $2.0…