Expired50% confidenceFactTime unknown
In actual programming tests, for the weather card task, Haiku 4.5 produced a fully functional result with animation effects, while Sonnet 4.5 had animation bugs, and Opus 4.1 performed the best.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Haiku 4.5 Hands-On: Coding Ability Rivals Sonnet 4 at One-Third the Cost
bilibili三少科技
Related Claims
UnverifiedIn the ball-drop physics simulation task, Haiku 4.5 outperformed Sonnet 4.5, with Opus 4.1 achieving the most realistic physics effects.78% similarUnverifiedClaude Haiku 4.5 can already match the previous generation flagship model Sonnet 4 in programming performance71% similarUnverified测试者认为Opus 5是优秀的编程模型，能力与Sonnet 5差距不大且价格更低67% similarUnverifiedHaiku 4.5 reached 90% of Sonnet 4.5's performance on the Agentic Coding evaluation.66% similarUnverifiedClaude Sonnet 4.5 significantly outperforms the previous-generation Sonnet 4 model on software engineering benchmarks, and even surpasses the higher-positioned Opus model.65% similar
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