Claude Opus 4.5 vs Llama 3.1 70B (Instruct)

Compare Claude Opus 4.5 by Anthropic against Llama 3.1 70B (Instruct) by Meta AI, in 2 community votes, claude opus 4.5 wins 100% of head-to-head duels, tested across 26 shared challenges. Updated February 2026.

In 2 community votes, Claude Opus 4.5 wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 2+ human preference judgments for this pair.

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