Claude Fable 5.1 vs GPT-6 Astra: the real cost comparison (September 2026)
Fable 5.1 and GPT-6 Astra cost exactly the same per token — $10 in, $50 out. So the price question isn't the rate card. Here is what each model actually costs per task, with the maths.
Lami Mershed10 min read