Arquivo de Pelicanos de BicicletaUM GUIA DE CAMPO DA IA
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Community record · 2026-10-07

Claude Haiku 5.5 · max reasoning effort

The work

About this work

Simon Willison tested Anthropic's newly released Claude Haiku 5.5 in his blog post 'Claude Haiku 5.5' using the llm CLI. The model defaults to medium reasoning effort and cannot disable thinking. The author tested effort levels from low to max and featured the max-effort output in the article, which took 5 minutes 9 seconds and cost ~3.38 cents. The output depicts a white pelican with a red cap, curved beak, long orange legs on pedals, dark grey bike frame, sun and speed streaks. Archives the article's original WebP preview from static.simonwillison.net; model label is source-reported and unauthenticated; date is the source publication on 2026-10-07.

Date evidence, prompt & provenance

Date precision / evidence: day / source-publication. Source publication: 2026-10-07. Generation date is not independently authenticated.

Data registrada
2026-10-07
Date precision
Day
Date basis
source-publication
Modelo informado pela fonte
Claude Haiku 5.5
Model attribution
Source-reported, not independently authenticated
Autor / publicador
Simon Willison
Formato
SVG estático
Categoria do prompt
Source-documented test
Prompt original
The source does not provide the complete per-run prompt; see the original link
Last updated
2026-10-26
Markdown record