Cost per task varies widely, with top performing models from Anthropic ranging from $0.3 to $1 per task - this is up to ~6x higher than the cost of Kimi K3, which sits behind the recent Claude models on the MLCR-AA Score vs. Cost per Task Pareto frontier. While OpenAI’s GPT-5.6 family does not top scores due to low completeness, their strong accuracy comes with relatively lower cost and both GPT-5.6 Terra and Luna sit on the Pareto frontier.