264s to generate23,460 output tokens
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Anthropic · Claude
Claude Fable 5
Current flagshipText / reasoning model
Anthropic’s flagship, launched June 2026 as the successor to the Claude 4 line.
Yes — Claude Fable 5 is a real Anthropic model.
Released June 2026 by Anthropic, Claude Fable 5 is part of the Claude family. It's available through Anthropic's API, and we run it on PromptFrenzy — the examples below are real, unedited generations it produced.
Maker
AnthropicReleased
June 2026
Input price
$10 / 1M
Output price
$50 / 1M
What is Claude Fable 5?
Claude Fable 5 is Anthropic’s current flagship, the successor to the Claude 4 family (Opus / Sonnet / Haiku). It runs with adaptive thinking that scales effort to the task. In our Dream Home showdown it delivered one of the most considered builds and the most quietly self-aware rationale of the five models — strong taste and restraint rather than maximalism.
Strengths
- ✓Excellent judgment and restraint on open-interpretation tasks.
- ✓Adaptive thinking scales reasoning effort to the problem.
- ✓Coherent, well-structured output without over-building.
Trade-offs
- ✗Premium pricing — among the more expensive models per token.
- ✗High-effort runs are not fast (a few minutes on heavy tasks).
What Claude Fable 5 actually produces
Real, unedited outputs from Claude Fable 5 in our model showdowns — same brief, same constraints as every other model, one shot each.
239s to generate18,785 output tokens
“A small timber cottage on a sea cliff with a glass-domed observatory tower: quiet enough to think, with a fire indoors, a waterfall next door, and a telescope pointed at everything I haven’t figured out yet. The boat at the dock is for the days curiosity wins over comfort.”
185s to generate14,662 output tokens
24s to generate1,967 output tokens
See Claude Fable 5 compared head-to-head
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See how Claude Fable 5 stacks up against the other frontier models on the same brief.
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