OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock

OpenAI's GPT-5.6 family (Sol, Terra, Luna) is now generally available on Amazon Bedrock, with Sol topping the DeepSWE leaderboard at 73%. Luna outperforms GPT-5.5 at its highest reasoning setting while costing 25x less, and Sol Ultra reportedly produced a proof of a 50-year-old math conjecture.