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Cursor users question status of Composer 3 model amid Grok 4.5 integration

Users on the Cursor subreddit are questioning the status of Composer 3, a model that was previewed with significant hype and training resources. Recent updates to Cursor have integrated Grok 4.5 as the primary model and replaced the Composer sidebar with an Agents Window, with no official mention of Composer 3 in documentation. This has led to speculation that Composer 3 may have been rebranded as Grok 4.5 or is potentially canceled, as users have received vague responses to their inquiries. AI

IMPACT Potential confusion for users regarding model availability and branding within AI-powered tools.

RANK_REASON User discussion about a product's internal model status and potential rebranding.

Read on r/cursor →

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

Cursor users question status of Composer 3 model amid Grok 4.5 integration

COVERAGE [1]

  1. r/cursor TIER_2 English(EN) · /u/Relevant-Run-4059 ·

    Is Composer 3 officially dead? No news after Grok 4.5 integration?

    <!-- SC_OFF --><div class="md"><p>Back in June, Cursor previewed a new 1.5T+ parameter model for Composer 3, trained from scratch on 100k+ GPUs. A lot of us were hyped for it.</p> <p>Fast forward to now:</p> <ul> <li>Grok 4.5 is the new primary model in Cursor.</li> <li>Cursor 3 …