GPT5.6 Sol is 50% the cost of Fable 5 for input and 60% the cost of Fable 5 for output.
Terra is even cheaper.
game over Anthropic
developing valhalla - h/acc (@valhalla_dev)
All GPT5.6 will have to do is launch with 90% or more capability as Fable at 50-80% of the price of Fable and it'll be over
— https://nitter.net/valhalla_dev/status/2074139952615407717#m