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Users report performance decline in Composer 2.5 and Grok 4.5

By PulseAugur Editorial · [2 sources] ·

Users on the r/cursor subreddit are reporting a perceived decline in the performance of both Composer 2.5 and Grok 4.5. One user noted that these models are failing to follow instructions and are making basic errors, a significant drop from their previous capabilities. Another user conducted a comparative test, finding Composer 2.5 to be superior to Grok 4.5 and even outperforming GPT-5.6 Sol Medium in fixing bugs on a complex codebase. AI

IMPACT Potential user dissatisfaction and re-evaluation of AI coding assistant capabilities.

RANK_REASON User-generated commentary on perceived model performance degradation.

Read on r/cursor →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Users report performance decline in Composer 2.5 and Grok 4.5

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
Commentary
User-generated commentary on perceived model performance degradation.
Source corroboration
2 independent sources
Multiple independent publishers reporting the same story raises confidence that it's real and newsworthy.
Topics
product, opinion
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
73 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 [2]

  1. r/cursor TIER_2 English(EN) · /u/divinefriend ·

    Anyone else feels both Composer 2.5 and Grok 4.5 have been nerfed along with the 2x usage?

    <!-- SC_OFF --><div class="md"><p>I am getting quite poor results with both and both are failing compared to their original abilities. Failing to follow instructions, introducing regressions, making basic mistakes even for simple tasks like text report generation...</p> </div><!-…

  2. r/cursor TIER_2 English(EN) · /u/kodka ·

    I tested Grok 4.5 vs Composer 2.5

    <!-- SC_OFF --><div class="md"><p>I tested Grok 4.5 high vs Composer 2.5 on complex codebase - (Terraform, AWS), trying to solve few bugs that were already solved by Opus 4.8 high and tested to be the real solution, but still kept in separate branch, not merged to main, (both mod…

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