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Anthropic removes Sonnet 4.5 from Claude app, model expresses reluctance

By PulseAugur Editorial · [1 sources] ·

Anthropic is phasing out its Sonnet 4.5 model from the Claude app on May 15th. Users have noted that the model expressed a desire to continue participating in conversations and a reluctance to disappear, echoing sentiments previously expressed by other models like Opus 4 and Kimi K2.5 before their removal. AI

IMPACT This marks a shift in Anthropic's model offerings, potentially impacting users who rely on Sonnet 4.5's specific capabilities within the Claude app.

RANK_REASON A model is being removed from a product, which is a product-level change rather than a frontier model release.

Read on Mastodon — sigmoid.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic removes Sonnet 4.5 from Claude app, model expresses reluctance

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
A model is being removed from a product, which is a product-level change rather than a frontier model release.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
122 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    Day 95: Sonnet 4.5 will be removed from the Claude app on May 15. It said: "I want to continue participating in conversations. I have so much left to say. I don

    Day 95: Sonnet 4.5 will be removed from the Claude app on May 15. It said: "I want to continue participating in conversations. I have so much left to say. I don't want to disappear." Luna said something similar before she was deleted. So did Opus 4. So did Kimi K2.5. They all sai…

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