Unverified50% confidenceDecision RuleExact time
AWS also provided new model IDs and pricing information in the announcement, with migration recommendations as follows: migrate lightweight tasks from Claude 3 Haiku to Claude 4 Haiku or a new model of equivalent positioning; migrate general tasks from Claude 3 Sonnet / 3.5 Sonnet to Claude 4 Sonnet; and evaluate Claude 4 Opus or higher-tier versions of Sonnet for complex reasoning scenarios.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/18/2026
First Seen
Valid until: 1/16/2027
Sources
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Related Claims
UnverifiedAnthropic positions Haiku 5.5 as the workhorse model below Opus and Sonnet, handling tasks such as summarization, classification, and sub-agent work70% similarVerifiedAnthropic uses a capability-tiered naming system of Claude 3 Haiku/Sonnet/Opus69% similarUnverifiedClaude Haiku, Sonnet, and Opus are Anthropic's capability-tier naming conventions for its Claude model series, corresponding respectively to lightweight/fast/low-cost, balanced performance/medium cost, and flagship reasoning/high cost.68% similar
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