Anthropic will claim the top spot on LiveBench's Coding leaderboard on September 30, 2026. The win will come against models such as GPT-5.5 Thinking xHigh Effort, which held a Coding score of 82.1 in July 2026, and Claude 4.8 Opus Thinking xHigh Effort, which scored 79.3 in Coding, as listed on liv…