According to God of Prompt, GPT5.6 sparked a price war: Luna $1 per 1M tokens, Sonnet 5 intro $2, Terra 2x cheaper than GPT5.5.

According to @gdb, OpenAI’s GPT5.6 debuts with Sol, Terra, and Luna, boosting coding, security, and science with fewer tokens and lower costs.

According to @gdb, OpenAI will launch GPT 5.6 Sol with Terra and Luna on Thursday, expanding global preview access now, according to OpenAI.

According to OpenAI... GPT-5.6 Sol with Terra and Luna launches Thursday, with global preview access expanding now, signaling broader rollout for developers.

According to @gdb, OpenAI unveils GPT-5.6 Sol, plus Terra and Luna, targeting frontier capability, balanced efficiency, and fast affordable workloads.

According to @OpenAI, GPT-5.6 Sol launches in limited preview with Terra for balanced tasks and Luna for fast, affordable high-volume work.