Claude Opus 5.5 vs Kibitz
aka Opus 5.5 vs Kibitz (Arena)
Pre-release Kibitz is an unreleased model seen in Arena testing under a codename; the name may change.
Posts
2
About this matchup
Claude Opus 5.5 vs Kibitz in real side-by-side tests: 2 posts from X where both got the same prompt. Judge coding ability from the actual outputs.
Opus 5.5 vs Kibitz: which is better for coding?
Which is better for coding, Opus 5.5 or Kibitz?
None of the 2 posts here names one of the two as the better result, so judge the outputs above for the work you care about.
What have Opus 5.5 and Kibitz been tested on?
The most-viewed of the 2 posts: walking 3D giraffe, four models in Arena (@Haleeeemahh), galloping horse on a savanna, three models (@AI_Screening). Categories: 3D & Shaders, Animations/SVG.
How many side-by-side tests compare Opus 5.5 and Kibitz?
2 posts from X, posted between Oct 22, 2026 and Oct 22, 2026, by 2 accounts (@Haleeeemahh, @AI_Screening). Every one is listed above with its video and a link to its post on X.
Summary
Claude Opus 5.5 and Kibitz appear together in 2 posts on X: walking 3D giraffe, four models in Arena (@Haleeeemahh) and galloping horse on a savanna, three models (@AI_Screening). All are part of larger lineups with other models. None of these posts report cost or time per model.
What each post reports
| Post | Model | Time | Cost | Tokens | Author’s verdict | Post |
|---|---|---|---|---|---|---|
| Walking 3D giraffe, four models in Arena@Haleeeemahh | Claude Opus 5.5 | — | — | — | — | X post |
| Walking 3D giraffe, four models in Arena@Haleeeemahh | Kibitz | — | — | — | — | X post |
| Galloping horse on a savanna, three models@AI_Screening | Claude Opus 5.5 | — | — | — | — | X post |
| Galloping horse on a savanna, three models@AI_Screening | Kibitz | — | — | — | The poster ranks Carbon at or above Opus 5.5 and calls Kibitz good in its own league. | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | Anthropic | 2026-09-22 | $4 | $20 | 1,000,000 | Model docs |
| Kibitz |
From the vendors’ official pages, checked 2026-10-19. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.
Who won where
1- Galloping horse on a savanna, three modelsThe poster ranks Carbon at or above Opus 5.5 and calls Kibitz good in its own league.— the author’s view, @AI_Screening (paraphrased)
Models
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