GPT-5.6 'Sol' Hits GA With Terminal-Bench and BrowseComp SOTA Claims

LLM Boss·medium signal

Following OpenAI's July 9 launch of the GPT-5.6 family (Sol, Terra, Luna) and a staggered US-government-approved rollout, flagship Sol is now posting SOTA results at general availability on Terminal-Bench (agentic terminal tasks) and BrowseComp (web browsing), per benchmark write-ups. Sol targets coding, biology, and cybersecurity agentic work; Terra runs everyday tasks at ~half GPT-5.5's cost and Luna optimizes for speed. Builders should re-benchmark against their own eval suites before switching.