Claude Opus 5

Claude Opus 5 is a proprietary language model from Anthropic, released on Jul 24, 2026.

At $5 input and $25 output per million tokens, it ranks #24 of 28 for input price, placing it mid-range on input cost.

Its context window of 1.0M tokens ranks #4 of 29 for context depth in this dataset.

It targets coding, agents, reasoning workloads.

Throughput is measured at 52.3 tokens per second (ranked #21 of 22 for throughput).

Ranked #1 of 170 models on the Artificial Analysis Intelligence Index at 61, ahead of Fable 5 at 60 and GPT-5.6 Sol at 59. Anthropic reports it surpasses all other models on Frontier-Bench, more than doubling Opus 4.8's performance, comes within 0.5 percent of Fable 5's peak CursorBench 3.2 score at half the cost, scores three times the next-best model on ARC-AGI 3, surpasses Fable 5's best OSWorld 2.0 result at about one third of the cost, and posts roughly 1.5 times the next-best pass rate on Zapier AutomationBench. It trails Mythos 5 on cybersecurity.