Claude Haiku 5.5 vs 
Quasar Alpha
Claude Haiku 5.5 is the newer model, released after Quasar Alpha.
Minimalist Landing Page
Whole landing page for a startup that reads your face. It renders or it doesn't.
Loading the build
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Which answer wins?
Price and specs
| Spec | Claude Haiku 5.5 | Quasar Alpha |
|---|---|---|
| Input price | $0.1/M tokens | — |
| Output price | $0.5/M tokens | — |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | — |
| Released | Oct 2026 | Apr 2025 |
| At 10M a month | $1.00 | not listed |
Input tokens at list price. No caching, no batch discount.
Where to run it
Quasar Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Claude Haiku 5.5 and Quasar Alpha?
Claude Haiku 5.5 is developed by Anthropic while Quasar Alpha is developed by OpenRouter. Claude Haiku 5.5 has a 1.0M token context window vs Quasar Alpha's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, Claude Haiku 5.5 or Quasar Alpha?
It depends on your use case. Claude Haiku 5.5 and Quasar Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.
How can I compare Claude Haiku 5.5 and Quasar Alpha on Rival?
This page shows a side-by-side comparison of Claude Haiku 5.5 and Quasar Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
More comparisons
Against the newest arrivals
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- Claude Haiku 5.5 vs Mistral Large 4Landed Oct 2026
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- Claude Haiku 5.5 vs Claude Sonnet 5.5Landed Sep 2026
- Quasar Alpha vs Solar Mini 4Landed Sep 2026
- Claude Haiku 5.5 vs Qwen3.8 Max PrimeLanded Sep 2026
- Quasar Alpha vs GLM 5.3 PrimeLanded Sep 2026
Same lab, same size, long tail
- Claude Haiku 5.5 vs Claude Opus 5.5Same lab
- Claude Haiku 5.5 vs Claude Fable 5.1Same lab
- Quasar Alpha vs Ox AlphaSame lab
- Quasar Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
- Quasar Alpha vs GPT-5.6 LunaNew provider
- Quasar Alpha vs GPT-5.6 Luna ProNew provider
- Quasar Alpha vs GPT-5.6 SolNew provider
- Quasar Alpha vs GPT-5.6 TerraSame size