Anthropic 'Marshmallow' and 'Melon' Models Leaked in API
机器之心 · wechat · 2026-08-24
Developers discovered two new model codenames in Anthropic's API: claude-marshmallow-eap and claude-melon-eap. The 'eap' suffix indicates an Early Access Program stage.
Key Details:
- Naming Shift: Moving from animal names (like Fennec) to food themes (Marshmallow, Melon), suggesting a new dev branch.
- Speculation: Likely updates for the Opus or Sonnet line, with rumors that Marshmallow outperforms the current Opus 5.
- Release Pace: Just one month after Opus 5's launch, Anthropic seems to be accelerating its iteration cycle.
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