OpenAI cuts prices for GPT‑5.6 Luna and Terra
🤖 OpenAI has reduced API prices for two GPT-5.6 models, cutting Luna by 80% and Terra by 20% to improve cost efficiency. Luna now costs $0.20 per million input tokens and $1.20 per million output tokens, down from $1 and $6; Terra’s rates dropped to $2 per million input and $12 per million output. OpenAI also updated usage accounting for Codex and ChatGPT Work and upgraded Auto-review to GPT-5.6 Luna, yielding significant cost savings. Additionally, GPT-5.6 Sol gains a Fast API option that is up to 2.5× faster at twice the price for latency‑sensitive workloads.