OpenAI announced GPT-5.6 Sol, Terra, and Luna

• Sol — the new flagship model for complex agentic workflows

• GPT-5.6 introduces max reasoning and ultra modes with subagents

• Key focus areas include coding, biology, and cybersecurity

• Access is currently limited following a request from the U.S. government

• Pricing ranges from $1/M input tokens to $30/M output tokens

• In July, Sol will launch on Cerebras at up to 750 tokens/sec