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Lisan al Gaib#844
Lisan al Gaib#844
max@maxbittker
Claude Fable 5.0 sets a new frontier score on runescape bench. y axis is log scale
12:43 PM · Jun 9, 2026 · 10K Views
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Users appreciate updates on Claude Fable 5.0 setting a record on the Runescape AI Benchmark because it is the benchmark they value most.
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max@maxbittker
Claude Fable adeptly navigates the multi-step supply chains needed for smithing and crafting, and makes sharp navigation of tradeoffs when optimizing. For instance, it's the first model I've seen use the bank to store resources
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max@maxbittker
Comparing to Opus 4.8, it's about the same speed in tokens per second, which surprises me, I expected "mythos" to be giant and slow. Plus it tends to be about 20% shorter in its responses than opus! (Still comes out to 2x the cost per run) You can view the results here: https://maxbittker.github.io/runebench/
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Tim Mastny@timmastny
@maxbittker The only benchmark I care about: thanks for the update 🙏
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