Opus 4.7 First Look: I Tested the Day-Old Model Against 3 Other Claudes on 10 Real Tasks
Dev.to AI
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Generative AI
AI Research
Evaluated on April 18, 2026 using AgentHunter Eval v0.4.0 Anthropic released Claude Opus 4.7 on April 17, 2026. I ran it through the same 10-task evaluation I used for Opus 4.6, Sonnet 4.6, and Haiku 4.5 - this time with real token tracking so I could report dollar cost, not just pass rate. TL;DR Model Tasks Passed Avg Time Total Cost Cost / Task Claude Opus 4.7 10/10 8.4s $0.559 $0.056 Claude Opus 4.6 10/10 9.8s $0.437 $0.044 Claude Sonnet 4.6 10/10 9.8s $0.110 $0.011 Claude Haiku 4.5 8/10 4.6s $0.030 $0.003 Opus 4.7 is the new accuracy king and it's also faster than 4.6.