Explore how OpenAI's GPT-5.6 family compares with Anthropic's Fable class across capabilities. Discover the strengths, trade-offs, and whether GPT-5.6 has taken the lead.

With OpenAI poised to deploy its latest frontier model as early as this week, Anthropic's extended promotion marks a calculated move to retain developer mindshare.

Watch now | 🎙️GPT 5.6-Sol beats Fable on prototypes, PRDs, and browser use in my 5-category How I AI benchmark, and here's exactly where each model earns its spot.