The 2026 AI Model Landscape for Marketers: Opus 4.8, Fable 5, GPT-5, DeepSeek V4, Gemini

Navigate the 2026 AI model landscape: compare Claude Opus 4.8, GPT-5, DeepSeek V4, Gemini, Grok, and Perplexity Sonar. CMO’s guide to picking models that drive