Matchup

Claude Haiku 5.5 vs GPT-6.1 Sol

2 posts201 likes25.7K views

Claude Haiku 5.5 vs GPT-6.1 Sol in real side-by-side tests: 2 posts from X where both got the same prompt; 1 post reports cost or time. Judge coding ability from the actual outputs.

Posts

2

Same prompt, separate runs

3

Not a controlled comparison: prompts, tools and time differ.

Summary

Claude Haiku 5.5 and GPT-6.1 Sol appear together in 2 posts on X: ship animation, Haiku vs Sol on cost (@DanielZambrini) and the Night Train, four OpenAI and Claude models (@EnvolDev). 1 of them are part of larger lineups with other models. In @DanielZambrini's ship animation, Haiku vs Sol on cost, GPT-6.1 Sol was cheaper ($1.03 vs $1.34), as reported in the post. According to @DanielZambrini, he preferred sol’s result, and haiku was not cheaper for the finished task. (The author’s view.)

What each post reports

Claude Haiku 5.5 vs GPT-6.1 Sol: cost, time and tokens as stated in each post
PostModelTimeCostTokensAuthor’s verdictOriginal
Ship animation, Haiku vs Sol on cost@DanielZambriniClaude Haiku 5.5—$1.34——X post
Ship animation, Haiku vs Sol on cost@DanielZambriniGPT-6.1 Sol—$1.03—Author’s pickX post
The Night Train, four OpenAI and Claude models@EnvolDevGPT-6.1 Sol————X post
The Night Train, four OpenAI and Claude models@EnvolDevClaude Haiku 5.5————X post

Only numbers stated in each post. “—” means the post doesn’t say.

Who won where

1

Prompts shown in the posts

Build a night train. — @EnvolDev

Models

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