Unverified50% confidenceCautionExact time
Mapping all three tiers—Sonnet, Opus, and Haiku—to the same model endpoint is required for a domestic model to fully take over Claude Code; omitting Haiku will cause errors or fallback to the default configuration on lightweight requests.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/6/2026
First Seen
Valid until: 1/4/2027
Sources
Related Entities
Related Claims
VerifiedThe Claude 3 series uses Haiku, Sonnet, and Opus to name different capability tiers74% similarUnverifiedThe Claude product line is divided into three tiers—Haiku (lightweight), Sonnet (balanced), and Opus (flagship)—and Claude 3 and later versions support context windows of up to 200K tokens.68% similar
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