Claude’s Hidden Models Surface in Testing
💡Two unannounced Claude models have surfaced, offering clues about Anthropic’s next model cycle.
⚡ 30-Second TL;DR
What Changed
Two Claude models, codenamed “mmallow” and “melon,” were discovered through developer investigation.
Why It Matters
If confirmed, the models could signal Anthropic’s next iteration of Claude capabilities, but there is currently no reliable information about benchmarks, pricing, API access, or production readiness. Practitioners should treat the report as a lead rather than a usable product announcement.
What To Do Next
Do not migrate production workloads based on the leak; monitor Anthropic’s official Claude release notes and API documentation for confirmed access.
Key Points
- •Two Claude models, codenamed “mmallow” and “melon,” were discovered through developer investigation.
- •The models are reportedly internal or limited-access test versions.
- •Anthropic has not officially announced either model.
- •The leaks suggest Claude may be testing multiple model variants after the reported Fiber 5 release.
Weekly AI Recap
Read this week's curated digest of top AI events →
👉Related Updates
AI-curated news aggregator. All content rights belong to original publishers.
Original source: 虎嗅 ↗
This is a summary, not the original. Read the source, or get the weekly briefing.
Weekly AI briefing
One email a week. Unsubscribe anytime.



