Video by Ka1manov (@ka1manov) · originally posted on XView original post on X
Claude Opus 5.5 vs Claude Sonnet 5.5 vs Claude Haiku 4.5
Self-playing Tetris, 3 Claude models
Ka1manov@ka1manov23 likes878 views
Claude Opus 5.5, Claude Sonnet 5.5 and Claude Haiku 4.5 each build a Tetris-style game that plays itself, one try each, 50 pieces. Final scores were 19, 17 and 6 lines.
Models
| Model | Notes |
|---|---|
| Claude Opus 5.5Anthropic | Written as “Opus 5.5” |
| Claude Sonnet 5.5Anthropic | Written as “Sonnet 5.5” |
| Claude Haiku 4.5Anthropic | Written as “Haiku 4.5” |
Details
| Kind | Side-by-side (same post, same prompt) |
|---|---|
| Task | Self-playing Tetris, 3 Claude models |
| Topic | Tetris clone |
| Category | Games |
| Mode | One shot |
| Posted | |
| Video length | 21.5 s |
| Likes / views | 23 / 878 · as of Oct 18, 2026 |
| Bookmarks | 4 |
| Notes | The post lists the scores (19, 17, 6 lines) as a quiz without saying which model scored which. |
| Sponsored | No |
| Original post | x.com/ka1manov/status/2107909833018294660 |
Related
Compare all 3 modelsClaude Haiku 4.5 vs Claude Opus 5.5Claude Haiku 4.5 vs Claude Sonnet 5.5Claude Opus 5.5 vs Claude Sonnet 5.5
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