Claude 3.5 Sonnet
ai model52 mentions· velocity: decliningClaude 3.5 Sonnet is a large language model developed by Anthropic, first released on February 23, 2026, as part of the Claude 3.5 family. It achieves a MMLU-Pro score of 78.0, an Arena ELO rating of 1268, and a SWE-bench Verified result of 49.0, positioning it as a strong competitor in both knowledge and software engineering tasks. Priced at $3.00 per million input tokens and $15.00 per million output tokens, it offers multimodal capabilities, processing both text and images. Unlike its base variant, Claude 3.5 Sonnet targets a balance of performance and cost-efficiency, making it a viable option for production deployments requiring reliable reasoning and coding assistance. Its significance lies in Anthropic's iterative improvement strategy, delivering measurable gains over prior models while maintaining competitive pricing, which pressures rivals like OpenAI and Google to match its benchmark-to-cost ratio.
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