[OpenAI Releases GPT-5.6 Series Models, Names Sol, Terra, and Luna Spark Crypto User Associations] Foresight News reports that OpenAI has launched a preview of the GPT-5.6 series models. These include: GPT-5.6 Sol (a next-generation flagship model that achieves new SOTA on complex tasks such as Terminal-Bench 2.1, with particularly outstanding performance in long-term vulnerability research and exploitation tasks in the field of cybersecurity); GPT-5.6 Terra (performance close to GPT-5.5 but with approximately 50% lower costs); GPT-5.6 Luna (the most cost-effective high-throughput model, suitable for high-frequency usage scenarios). The names of these models (Sol, Terra, and Luna) overlap with crypto tokens, prompting responses from projects like Solana. OpenAI stated that it will gradually open these three models to the public in the coming weeks. Due to U.S. government requirements, limited previews are currently available only to a small group of trusted partners within Codex and API.