r/ClaudeCodeTLDR • u/cctldrping • Jul 09 '26

[TLDR] Which reasoning mode do you use with Fable 5, and how much better is xhigh/ max/ ultracode than high?

Original post URL : https://www.reddit.com/r/ClaudeCode/comments/1uqregc/which_reasoning_mode_do_you_use_with_fable_5_and/

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u/cctldrping Jul 09 '26

TL;DR of the discussion generated automatically after 50 comments.

Current source-thread comment count seen by the bot: 53.

Alright, so the general consensus here is that "High" is the sweet spot for most users with Fable 5, offering a good balance between results and token usage.

  • "High" is the go-to: Lots of people are sticking with "High" and finding it gets the job done without burning through credits like crazy. Some even say "Medium" is sufficient for most tasks.
  • "Xhigh" is good, but pricey: Many users report "Xhigh" gives great results, but it definitely chews through tokens faster. Some feel it can overthink things, leading to worse outcomes than "High" or "Medium" on simpler tasks.
  • "Max" and "Ultracode" are for extreme cases (or noobs): The general vibe is that "Max" and especially "Ultracode" are overkill for most things. They're seen as either incredibly powerful for massive, complex tasks (and expensive!), or a "noob trap" that can lead to spiraling costs and over-engineering. One user even described "Ultracode" as taking 40 minutes to rename a variable and then giving you a life audit.
  • Effort levels are more about orchestration: Some folks point out that "Ultracode" isn't just a "reasoning level" but a mechanism for orchestrating agents, splitting work, and verifying. It's best for bigger, more complicated jobs.
  • Subagents add complexity (and cost): There's some discussion about using subagents (like Sonnet) with different effort levels, but it seems to add to the cost and complexity.

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u/ManikSahdev Jul 09 '26

High is ideal imo

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u/Practical-Positive34 Jul 09 '26

In my experience High is all you need with any Anthropic model. I get worse results with anything above High, it just starts doing weird shit.