Verified65% confidenceFactExact time
The Claude 3 series uses Haiku, Sonnet, and Opus to name different capability tiers
3
Sources
65%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Gemini 3.5 Pro's Repeated Delays: The Real Logic Behind the LLM Race
redditr/GoogleGeminiAI7/11/2026
Related Claims
VerifiedAnthropic uses the capability-tier naming of Claude 3 Haiku/Sonnet/Opus, corresponding to three inference cost tiers: speed-first, balanced, and performance-first, respectively.76% similarUnverifiedMapping 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.74% similar
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