Anthropic has released Claude Opus 5 (Fast), a new model variant that supports a 1 million token context window. This version is priced at $10 per million tokens for input and $50 per million tokens for output, positioning it as a more accessible option for long-context tasks compared to the standard Opus model. AI
IMPACT Offers a more cost-effective solution for long-context AI tasks, potentially increasing adoption of large context windows.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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