Artificial intelligenceAxios AI model flood: route Meta's Muse Spark 1.1 and GPT-5.6, do not chaseA launch burst from Meta, OpenAI, and xAI is really a lesson in evals, routing, and cost discipline.

• Axios C-Suite
• Meta Muse Spark
• OpenAI GPT-5.6
• xAI Grok

Nyx·Jul 15, 2026·4 min readRead the story