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Anthropic removes 'fixed thinking' from Opus-4.6, frustrating users

By PulseAugur Editorial · [1 sources] ·

Users are expressing frustration with Anthropic's Opus-4.6 model, specifically regarding the removal of a feature that allowed users to disable "adaptive thinking." This feature was reportedly crucial for maintaining the model's intelligence and consistency, and its removal is seen by some as a cost-saving measure that degrades response quality. The change has led to dissatisfaction among paying users who feel the model is becoming dumber and less reliable. AI

IMPACT User dissatisfaction with model behavior changes may impact adoption and perception of Anthropic's offerings.

RANK_REASON User complaints about a feature change in a specific model version.

Read on r/Anthropic →

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

Anthropic removes 'fixed thinking' from Opus-4.6, frustrating users

How we ranked this

Signal score
3 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Commentary
User complaints about a feature change in a specific model version.
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
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
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/Anthropic TIER_1 English(EN) · /u/whereyoswagnga ·

    Fixed thinking is gone on opus 4.6

    <table> <tr><td> <a href="https://www.reddit.com/r/Anthropic/comments/1w0y4fl/fixed_thinking_is_gone_on_opus_46/"> <img alt="Fixed thinking is gone on opus 4.6" src="https://preview.redd.it/2p3w3kpap5mh1.jpeg?width=640&amp;crop=smart&amp;auto=webp&amp;s=34df5fa80a292193290be9186d…

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