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Models2026-08-26 · source-backed
An r/singularity post with demo video claims two new Claude checkpoints, claude-marshmallow-eap and claude-melon-eap, could release as early as this week. A KuCoin news flash reports the same two model strings from social-media leaks. No official confirmation, no parameters, no dates. The unverified community read is that both are meant to be more pleasant to converse with than Opus 5, which lines up suspiciously well with the tone complaints running on r/ClaudeAI. File under rumor.
Each link below shares sources, entities, or timing with this story.
Anthropic released Fable / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic released Fable); both cover Anthropic, CLAUDE, ClaudeAI, Opus; reported by the same outlet (reddit.com).
Linked by a graph relationship (Anthropic released Fable); both cover Anthropic, Claude, ClaudeAI, Opus; reported by the same outlet (reddit.com).
Anthropic released Claude Code / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic released Claude Code); both cover CLAUDE, ClaudeAI, File, Opus; reported by the same outlet (reddit.com).
Anthropic released Claude / Shared entities / Same source domain / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Anthropic released Claude); both cover Anthropic, CLAUDE, ClaudeAI; reported by the same outlet (reddit.com).
Linked by a graph relationship (Anthropic released Claude); both cover Anthropic, CLAUDE, ClaudeAI; reported by the same outlet (reddit.com).
Anthropic released Claude / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic released Claude); both cover Claude, ClaudeAI, Opus; reported by the same outlet (reddit.com).
Opus built by Anthropic / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover Anthropic, ClaudeAI, Opus; reported by the same outlet (reddit.com).
Anthropic released Fable / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Anthropic released Fable); both cover Anthropic, Claude, Opus; overlapping topics (anthropic, claim, claude).