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Claude · Last 7 days

Claude Fable 5.1

0–100 · higher means more positive community experience, not benchmark performance.

Updated 2026-10-02 14:32 UTC · 2026-09-25 – 2026-10-02 UTC
Experience score66.9/10044 comments in 7 days

RECENT EXPERIENCE

How the Experience Index is changing

−8.8vs 7 days ago · points

30 days of rolling 7-day scores at each daily snapshot. The vertical scale adapts to the data. Missing or insufficient samples leave gaps; today is still updating.

Claude Fable 5.1 · Hacker News · 30 days of rolling 7-day experience scores 2030405060 Observed-day mean: 45.7 2026-09-03 · 29.3 · n=37 · 2026-08-27T23:00:03+00:00 – 2026-09-03T23:00:03+00:002026-09-04 · 31.5 · n=43 · 2026-08-28T23:00:03+00:00 – 2026-09-04T23:00:03+00:002026-09-05 · 32.9 · n=44 · 2026-08-29T23:00:03+00:00 – 2026-09-05T23:00:03+00:002026-09-06 · 32.9 · n=44 · 2026-08-30T23:00:02+00:00 – 2026-09-06T23:00:02+00:002026-09-07 · 32.9 · n=44 · 2026-08-31T23:00:03+00:00 – 2026-09-07T23:00:03+00:002026-09-08 · 32.3 · n=45 · 2026-09-01T23:00:03+00:00 – 2026-09-08T23:00:03+00:002026-09-09 · 39.6 · n=15 · 2026-09-02T23:00:04+00:00 – 2026-09-09T23:00:04+00:002026-09-10 · 56.0 · n=9 · 2026-09-03T23:00:05+00:00 – 2026-09-10T23:00:05+00:002026-09-14 · 55.2 · n=6 · 2026-09-07T23:57:03+00:00 – 2026-09-14T23:57:03+00:002026-09-15 · 59.0 · n=5 · 2026-09-08T23:57:03+00:00 – 2026-09-15T23:57:03+00:002026-09-16 · 55.7 · n=8 · 2026-09-09T23:57:03+00:00 – 2026-09-16T23:57:03+00:002026-09-17 · 52.1 · n=6 · 2026-09-10T23:57:03+00:00 – 2026-09-17T23:57:03+00:002026-09-18 · 52.1 · n=6 · 2026-09-11T23:57:02+00:00 – 2026-09-18T23:57:02+00:002026-09-19 · 52.1 · n=6 · 2026-09-12T23:57:03+00:00 – 2026-09-19T23:57:03+00:002026-09-20 · 52.1 · n=6 · 2026-09-13T23:57:03+00:00 – 2026-09-20T23:57:03+00:002026-09-22 · 49.5 · n=16 · 2026-09-15T23:57:03+00:00 – 2026-09-22T23:57:03+00:002026-09-23 · 50.6 · n=15 · 2026-09-16T23:57:03+00:00 – 2026-09-23T23:57:03+00:002026-09-24 · 50.6 · n=15 · 2026-09-17T23:57:03+00:00 – 2026-09-24T23:57:03+00:002026-09-25 · 50.6 · n=15 · 2026-09-18T23:57:03+00:00 – 2026-09-25T23:57:03+00:002026-09-26 · 48.2 · n=16 · 2026-09-19T23:57:03+00:00 – 2026-09-26T23:57:03+00:002026-09-27 · 48.2 · n=16 · 2026-09-20T23:57:03+00:00 – 2026-09-27T23:57:03+00:002026-09-28 · 46.8 · n=17 · 2026-09-21T23:57:03+00:00 – 2026-09-28T23:57:03+00:002026-09-29 · 49.1 · n=6 · 2026-09-22T23:57:03+00:00 – 2026-09-29T23:57:03+00:002026-09-30 · 45.5 · n=5 · 2026-09-23T23:57:03+00:00 – 2026-09-30T23:57:03+00:002026-10-01 · 41.8 · n=6 · 2026-09-24T23:57:02+00:00 – 2026-10-01T23:57:02+00:002026-10-02 · 41.8 · n=6 · 2026-09-25T14:32:03+00:00 – 2026-10-02T14:32:03+00:00 41.8 09-0309-1109-1809-2510-02 Claude Fable 5.1 · Hacker News · 30 days of rolling 7-day experience scores 2030405060 Observed-day mean: 45.7 2026-09-03 · 29.3 · n=37 · 2026-08-27T23:00:03+00:00 – 2026-09-03T23:00:03+00:002026-09-04 · 31.5 · n=43 · 2026-08-28T23:00:03+00:00 – 2026-09-04T23:00:03+00:002026-09-05 · 32.9 · n=44 · 2026-08-29T23:00:03+00:00 – 2026-09-05T23:00:03+00:002026-09-06 · 32.9 · n=44 · 2026-08-30T23:00:02+00:00 – 2026-09-06T23:00:02+00:002026-09-07 · 32.9 · n=44 · 2026-08-31T23:00:03+00:00 – 2026-09-07T23:00:03+00:002026-09-08 · 32.3 · n=45 · 2026-09-01T23:00:03+00:00 – 2026-09-08T23:00:03+00:002026-09-09 · 39.6 · n=15 · 2026-09-02T23:00:04+00:00 – 2026-09-09T23:00:04+00:002026-09-10 · 56.0 · n=9 · 2026-09-03T23:00:05+00:00 – 2026-09-10T23:00:05+00:002026-09-14 · 55.2 · n=6 · 2026-09-07T23:57:03+00:00 – 2026-09-14T23:57:03+00:002026-09-15 · 59.0 · n=5 · 2026-09-08T23:57:03+00:00 – 2026-09-15T23:57:03+00:002026-09-16 · 55.7 · n=8 · 2026-09-09T23:57:03+00:00 – 2026-09-16T23:57:03+00:002026-09-17 · 52.1 · n=6 · 2026-09-10T23:57:03+00:00 – 2026-09-17T23:57:03+00:002026-09-18 · 52.1 · n=6 · 2026-09-11T23:57:02+00:00 – 2026-09-18T23:57:02+00:002026-09-19 · 52.1 · n=6 · 2026-09-12T23:57:03+00:00 – 2026-09-19T23:57:03+00:002026-09-20 · 52.1 · n=6 · 2026-09-13T23:57:03+00:00 – 2026-09-20T23:57:03+00:002026-09-22 · 49.5 · n=16 · 2026-09-15T23:57:03+00:00 – 2026-09-22T23:57:03+00:002026-09-23 · 50.6 · n=15 · 2026-09-16T23:57:03+00:00 – 2026-09-23T23:57:03+00:002026-09-24 · 50.6 · n=15 · 2026-09-17T23:57:03+00:00 – 2026-09-24T23:57:03+00:002026-09-25 · 50.6 · n=15 · 2026-09-18T23:57:03+00:00 – 2026-09-25T23:57:03+00:002026-09-26 · 48.2 · n=16 · 2026-09-19T23:57:03+00:00 – 2026-09-26T23:57:03+00:002026-09-27 · 48.2 · n=16 · 2026-09-20T23:57:03+00:00 – 2026-09-27T23:57:03+00:002026-09-28 · 46.8 · n=17 · 2026-09-21T23:57:03+00:00 – 2026-09-28T23:57:03+00:002026-09-29 · 49.1 · n=6 · 2026-09-22T23:57:03+00:00 – 2026-09-29T23:57:03+00:002026-09-30 · 45.5 · n=5 · 2026-09-23T23:57:03+00:00 – 2026-09-30T23:57:03+00:002026-10-01 · 41.8 · n=6 · 2026-09-24T23:57:02+00:00 – 2026-10-01T23:57:02+00:002026-10-02 · 41.8 · n=6 · 2026-09-25T14:32:03+00:00 – 2026-10-02T14:32:03+00:00 41.8 09-0309-1109-1809-2510-02
Daily readings & sample sizes
DateScorenScoring window (UTC)
2026-10-0241.862026-09-25T14:32:03+00:00 – 2026-10-02T14:32:03+00:00
2026-10-0141.862026-09-24T23:57:02+00:00 – 2026-10-01T23:57:02+00:00
2026-09-3045.552026-09-23T23:57:03+00:00 – 2026-09-30T23:57:03+00:00
2026-09-2949.162026-09-22T23:57:03+00:00 – 2026-09-29T23:57:03+00:00
2026-09-2846.8172026-09-21T23:57:03+00:00 – 2026-09-28T23:57:03+00:00
2026-09-2748.2162026-09-20T23:57:03+00:00 – 2026-09-27T23:57:03+00:00
2026-09-2648.2162026-09-19T23:57:03+00:00 – 2026-09-26T23:57:03+00:00
2026-09-2550.6152026-09-18T23:57:03+00:00 – 2026-09-25T23:57:03+00:00
2026-09-2450.6152026-09-17T23:57:03+00:00 – 2026-09-24T23:57:03+00:00
2026-09-2350.6152026-09-16T23:57:03+00:00 – 2026-09-23T23:57:03+00:00
2026-09-2249.5162026-09-15T23:57:03+00:00 – 2026-09-22T23:57:03+00:00
2026-09-21—42026-09-14T23:57:03+00:00 – 2026-09-21T23:57:03+00:00
2026-09-2052.162026-09-13T23:57:03+00:00 – 2026-09-20T23:57:03+00:00
2026-09-1952.162026-09-12T23:57:03+00:00 – 2026-09-19T23:57:03+00:00
2026-09-1852.162026-09-11T23:57:02+00:00 – 2026-09-18T23:57:02+00:00
2026-09-1752.162026-09-10T23:57:03+00:00 – 2026-09-17T23:57:03+00:00
2026-09-1655.782026-09-09T23:57:03+00:00 – 2026-09-16T23:57:03+00:00
2026-09-1559.052026-09-08T23:57:03+00:00 – 2026-09-15T23:57:03+00:00
2026-09-1455.262026-09-07T23:57:03+00:00 – 2026-09-14T23:57:03+00:00
2026-09-13—32026-09-06T23:57:03+00:00 – 2026-09-13T23:57:03+00:00
2026-09-12—32026-09-05T23:57:03+00:00 – 2026-09-12T23:57:03+00:00
2026-09-11—42026-09-04T23:00:04+00:00 – 2026-09-11T23:00:04+00:00
2026-09-1056.092026-09-03T23:00:05+00:00 – 2026-09-10T23:00:05+00:00
2026-09-0939.6152026-09-02T23:00:04+00:00 – 2026-09-09T23:00:04+00:00
2026-09-0832.3452026-09-01T23:00:03+00:00 – 2026-09-08T23:00:03+00:00
2026-09-0732.9442026-08-31T23:00:03+00:00 – 2026-09-07T23:00:03+00:00
2026-09-0632.9442026-08-30T23:00:02+00:00 – 2026-09-06T23:00:02+00:00
2026-09-0532.9442026-08-29T23:00:03+00:00 – 2026-09-05T23:00:03+00:00
2026-09-0431.5432026-08-28T23:00:03+00:00 – 2026-09-04T23:00:03+00:00
2026-09-0329.3372026-08-27T23:00:03+00:00 – 2026-09-03T23:00:03+00:00

Hacker News · 41.8 · 6 scored comments · Read platform reviews →

ONE MODEL, DIFFERENT COMMUNITIES

Across the communities

Last 7 days

Scored separately for each platform, with different samples and audiences. Platform scores are not simply averaged; scored counts exclude quota-only comments.

RedditLatest scored opinion 2026-09-30 13:29 UTC71.130 opinionsvs 7d ago +2.2Hacker NewsLatest scored opinion 2026-10-01 15:13 UTC41.86 opinionsvs 7d ago −8.8ZhihuLatest scored opinion 2026-10-02 12:09 UTC—4 opinionsInsufficient sampleRedNoteNo scored opinion timestamp—0 opinionsInsufficient sample

Scores range from 0 to 100. Select a platform for its trend and reviews. Latest opinion time is not crawler health.

What people think

One user, comparing Claude Fable 5.1/Opus 5.5 to Astra, notes it isn't fundamentally different but its first-cut code quality is better. One user said that in a recent project, Claude Fable 5.1 made some significant mistakes.

About the sample and scores

As of 2026-10-02 14:32:03 UTC, Claude Fable 5.1 in the Claude family has 44 explicitly attributed community comments in the last 7 days; its community score is 66.9/100. Available category scores include General text 54.8/100 (n=14); Coding 62.2/100 (n=5); Reasoning 71.7/100 (n=15). Scoring method and sources

Community reviews

Selected comments from the last 7 days. The balance of excerpts does not represent the share of positive reviews.

Platform
Sentiment

4 selected excerpts

Community reports about limits cannot establish official allowances.

NegativeGeneral text

“the amount of slop and corrections I had to make was astounding”

Hacker News ↗
PositiveCoding

“Fable 5.1/Opus 5.5 isn’t different, but the first cut is better quality.”

Hacker News ↗
Comment context
From the same comment ↗

Astra requires multiple turns and fresh refactoring agents to produce good code.

PositiveGeneral text

“my experience is that Fable 5.1 is very good at prompting/orchestrating Opus/Sonnet subagents”

Hacker News ↗
NegativeSafety & refusals

“"why my calves hurt more than any other muscle after training" being classified as a naughty question”

Hacker News ↗

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