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Fable is twice the price.
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If Fable gets correct answer quicker, then you might pay less than doing back and forth with Opus, plus you lose more of your own time.

I see no reason for using less able models in my workflows. There is this saying, penny wise and pound foolish

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same as it ever was. It seems your argument implies a belief that you should always use the best model. Others think that not all tasks require the absolute most powerful, expensive, model.
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The CursorBench plot, for example, shows that fable does have slightly better performance, but Opus is pretty close, and is less expensive per task
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fable on longer coding tasks with fable subagents will easily chew through hundreds of dollars in a single run.
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[flagged]
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less expensive per task might also mean less of your own time
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Fable 5 is NOT included in Claude Pro subscription
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Aren’t they planning to remove it even from max and keep it only credit based? OpenAI will be happy if that would happen
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Really? It's better than Opus 4.8, that's the point.

When they release new versions of Sonnet, no-one expects them to be better than Opus.

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it's nice to know how to work the thing that fable fails down to when it dislikes your prompt.
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This is useful to me since I delegate most coding tasks to Opus and use Fable for planning.
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The cost?
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Same as 4.8
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To have an answer to "Sol" GPT 5.6 which is far more cost effective and available than Fable.
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Pricing, presumably
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This is confusing to me because in their blogpost they show model benchmarks and it spanks Fable pretty soundly in most tests.
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Cost.
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Presumably, it’s cheaper.
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You are being downvoted for a fair question and others are extremely wrong and confident.

The point is that Opus 5 is the best they can do without needing classifiers and absurdly broad safeguards.

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The illusion of progress and advancement, to appease shareholders, and slightly postpone the looming bubble pop.
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Why are we still talking like ai is majorly used for increasing shareholder value only? Its coding performance is top notch and quality is increasing at a rapid pace. It wasn't even half this good a year back. It even is useful for a subset of math problems.
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People don't seem to be able to reconcile the fact that there is likely an overbuild and overspend on AI that may be inflating a bubble, and that AI is actually incredibly useful and getting really really good for certain tasks. Both camps are right, except for when they say the other is wrong.
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By what measure is there an overbuild? Every metric I look at, shows inference unable to satisfy current demands.
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