Pick a winner in each dimension — change your vote anytime.
Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).
Choose GPT-5.4 if you want the OpenAI daily driver — strong and well-priced. Choose Kimi K2.7 Code if you want cheap, capable open-weight coding agents.
In our editorial scoring, Kimi K2.7 Code leads in 4 of five dimensions (agentic ability, speed, value for $ and reliability), while GPT-5.4 leads in 1. On price, GPT-5.4 runs about $6.25 per 1M tokens (blended) and is proprietary; Kimi K2.7 Code is about $1.35 and open-weight.
The model picks the moves; the agent runs the loop, the tools, and the guardrails. Once you've chosen a model, see which agent gets the most out of it.