Expired60% confidenceFactExact time
Claude's naming system follows the rule of 'Claude + major version number + product line,' with the product line divided into three tiers: Haiku, Sonnet, and Opus.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Is Claude Opus 4.8 Real? Risk Analysis of No-VPN AI Platforms
bilibiliAIGC技术流学院6/4/2026
Related Claims
UnverifiedClaude's naming convention follows a 'Claude + major version + product tier' structure, such as Claude 3 Opus, Claude 3.5 Sonnet, and Claude 4 Sonnet80% similarUnverifiedClaude is a large language model series developed by Anthropic, with a product line divided into three capability tiers: Haiku, Sonnet, and Opus.77% similarUnverifiedThe Claude series naming lineage includes: Claude 1, Claude 2, the Claude 3 series (Haiku, Sonnet, Opus), Claude 3.5, Claude 3.7, and subsequent versions; a product line named "Fable" has never existed.75% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/52878API
curl https://kongchang.com/api/v1/knowledge/claims/52878MCP
get_claim(id=52878)