GPT-5.6 SolはFable 5にほぼ匹敵——しかし価格はその何分の一か
GPT-5.6 Solはインテリジェンス指数で59を記録し、Fable 5に1ポイント差と迫りながら、タスクあたりのコストはFable 5の$2.75に対してわずか$1.04。この価格圧力は、Anthropicのプレミアムポジショニングへの挑戦となっています。
openai released gpt-5.6 sol, a model that scores 59 on the artificial analysis intelligence index, just one point behind claude fable 5, but significantly undercuts it on price at $1.04 versus $2.75 per task. sol dominates the new coding agent index with 80 points and reduces output token usage by up to 54 percent for agentic tasks, while smaller variants terra and luna offer even lower costs. by introducing cache-read discounts and pushing a new pareto frontier for intelligence versus cost, openai is directly challenging anthropic's margins. this move heightens the price war initiated by lower-cost competitors like meta and xai, forcing the industry to prioritize economic efficiency alongside capability gains.