Expired50% confidenceBenchmarkExact time
In the test, Sonnet 5.5 used 19 agents, took 78 minutes, and had an equivalent API cost of $57.34.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/30/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/14/2026(expired)
Sources
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Related Claims
UnverifiedOn Terminal Bench, mid-tier Sonnet 5.5 scores 28.8% at approximately $0.83 per task, while Sonnet 5's highest tier only reaches 10.3% at approximately $11.6 per task72% similarUnverifiedIn advanced coding scenarios, Sonnet 5.5 reaches 49.4% at the Hi effort level, drops to 46.2% at the Max tier, and costs surge from 42 cents to 21 dollars.69% similarUnverifiedOpus 5.5 produced approximately 49% more output tokens than Sonnet 5.5, with an equivalent API cost that was nearly half again as expensive.68% similarUnverifiedDue to high token consumption, Sonnet 5.5's per-task cost is nearly on par with Fable 5.1.67% similarUnverifiedClaude Sonnet 5.5, released by Anthropic, runs more than 30% faster than the previous generation and reduces overall costs by approximately 30%.66% similar
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