Claude Haiku 5.5 vs GPT-6 Luna
Also compared as: haiku 5.5 vs gpt 6 luna · haiku 5.5 vs luna · haiku vs luna
3 posts551 likes80.5K views
Claude Haiku 5.5 vs GPT-6 Luna in real side-by-side tests: 3 posts from X where both got the same prompt; 2 posts report cost or time. Judge coding ability from the actual outputs.
Posts
3
Same prompt, separate runs
2Not a controlled comparison: prompts, tools and time differ.
Summary
Claude Haiku 5.5 and GPT-6 Luna appear together in 3 posts on X: lava lamp: small models (@bridgebench), 15-second motion graphic for a designer (@Iampuranthapa) and cloth simulation, 4 to 4,096 faces (@noclipepe). All are part of larger lineups with other models. In @bridgebench's lava lamp: small models, GPT-6 Luna was faster (42.8 s vs 4.6 min), as reported in the post. In @noclipepe's cloth simulation, 4 to 4,096 faces, GPT-6 Luna was faster (13 min vs 33 min) and used fewer tokens (47.5K tokens vs 238.7K tokens), as reported in the post. According to @bridgebench, GPT-6 Luna built the best lamp of the three: cheapest, fastest and best. (The author’s view.)
What each post reports
| Post | Model | Time | Cost | Tokens | Author’s verdict | Original |
|---|---|---|---|---|---|---|
| Lava lamp: small models@bridgebench | Claude Haiku 5.5 | 4.6 min | $0.03 | — | — | X post |
| Lava lamp: small models@bridgebench | GPT-6 Luna | 42.8 s | — | — | Author’s pick | X post |
| 15-second motion graphic for a designer@Iampuranthapa | GPT-6 Luna | — | — | — | — | X post |
| 15-second motion graphic for a designer@Iampuranthapa | Claude Haiku 5.5 | — | — | — | — | X post |
| Cloth simulation, 4 to 4,096 faces@noclipepe | Claude Haiku 5.5 | 33 min | — | 238,700 | — | X post |
| Cloth simulation, 4 to 4,096 faces@noclipepe | GPT-6 Luna | 13 min | — | 47,500 | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Who won where
1- Lava lamp: small modelsGPT-6 Luna built the best lamp of the three: cheapest, fastest and best.— the author’s view, @bridgebench (paraphrased)
Prompts shown in the posts
build a lava lamp — @bridgebench
build an interactive cloth simulation, from 4 to 4,096 faces — @noclipepe
Models
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