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Oh boy that Opus 5 is talkative

Reddit · Stunning_Divide4298 · July 29, 2026
A commenter criticizes Claude's Opus 5 for being excessively verbose, providing too much detail and lengthy explanations for concepts that do not require such elaboration. The commenter notes that instructions can be given to the model to reduce its verbosity.

Detailed Analysis

A Reddit post in r/Anthropic titled "Oh boy that Opus 5 is talkative" captures a common user frustration with large language models: excessive verbosity. The poster's complaint is brief but pointed—the model reportedly provides "too much detail and so many words for things that don't need that much explanation," and the user notes they've seen suggestions elsewhere that users need to explicitly instruct the model to be more concise. This is a lightweight, informal community post rather than a formal review or benchmark, and it lacks corroborating detail about specific prompts, use cases, or reproducible examples, but it reflects a recurring theme in discussions of Anthropic's models.

Verbosity has been a persistent point of tension in the deployment of frontier language models generally, and Claude models specifically. As models are tuned to be more thorough, safety-conscious, and helpful by including caveats, context, and step-by-step reasoning, they often trade off concision. This is frequently a deliberate design choice: more detailed responses can reduce ambiguity, provide better citations or reasoning trails, and preempt follow-up questions. However, for users seeking quick answers—especially in coding, quick fact lookups, or casual conversation—that same thoroughness can feel bloated and inefficient, slowing down workflows and increasing token costs for API users who pay per output token.

The suggestion embedded in the post—that users must explicitly prompt the model to "use fewer words"—points to an ongoing usability challenge in how default model behavior is calibrated versus how much control is handed to the end user. Anthropic and other AI labs have experimented with system-level settings, custom instructions, and "style" toggles (e.g., concise vs. detailed modes) to let users tune output length without needing to manually engineer prompts each time. The fact that community members are trading tips about verbosity workarounds suggests that whatever default calibration exists for this described "Opus" model, it isn't matching user expectations out of the box for a meaningful subset of use cases.

More broadly, this kind of feedback loop is emblematic of how AI companies iterate on model behavior post-release. Complaints about tone, length, and style circulate in developer forums and social media, often shaping subsequent fine-tuning passes, system prompt adjustments, or the introduction of user-facing settings (such as response-length sliders or "concise mode" toggles that some AI products have begun offering). It also underscores a broader tension in AI product design between optimizing for perceived helpfulness/safety through elaboration and optimizing for efficiency and user satisfaction through brevity. As competition among AI assistants intensifies, the ability to let users easily control output style—rather than requiring them to discover and apply prompt-engineering workarounds—will likely become an increasingly important differentiator and a common target for product refinement across the industry.

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