@estebankiwiOpenAI is gearing up to release GPT-5.6 in the "coming weeks," according to a new post. The upcoming model will come in three tiers: Sol, the flagship, priced at $5 per million input tokens and $30 per million output tokens, which reportedly outperforms Fable 5 and Mythos 5 on TerminalBench. The mid-range option is Terra, a daily driver costing $2.50 per million input tokens and $15 per million output tokens,half the price of GPT-5.5. For budget-conscious users, Luna is the cheapest frontier model on the market at just $1 per million

@estebankiwiOpenAI is gearing up to release GPT-5.6 in the "coming weeks," according to a new post. The upcoming model will come in three tiers: Sol, the flagship, priced at $5 per million input tokens and $30 per million output tokens, which reportedly outperforms Fable 5 and Mythos 5 on TerminalBench. The mid-range option is Terra, a daily driver costing $2.50 per million input tokens and $15 per million output tokens,half the price of GPT-5.5. For budget-conscious users, Luna is the cheapest frontier model on the market at just $1 per million