INTRODUCING CLAUDE OPUS 4.5

Summary from the TLDR AI newsletter

Claude Opus 4.5 is the first model to exceed 80% on SWE-bench Verified. It achieves state-of-the-art results across coding, tool use, and reasoning benchmarks. The model is priced at $5/$25 per million tokens, down from previous Opus pricing. It includes a new "effort" parameter letting developers trade speed for capability, automatic context compression enabling unlimited conversation length, and expanded availability for Claude for Chrome and Claude for Excel.