Claude Fable 5.1 vs Claude Haiku 5.5
Claude Haiku 5.5 is cheaper than Claude Fable 5.1 at $0.1/M vs $10/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
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Which answer wins?
Price and specs
| Spec | Claude Fable 5.1 | Claude Haiku 5.5 |
|---|---|---|
| Input price | $10/M tokens | $0.1/M tokens |
| Output price | $50/M tokens | $0.5/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Closed | Closed |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | Oct 2026 |
| At 10M a month | $100 | $1.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Claude Fable 5.1 and Claude Haiku 5.5?
Both are developed by Anthropic but target different use cases. Claude Fable 5.1 has a 1.0M token context window vs Claude Haiku 5.5's 1.0M. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.
Which is better, Claude Fable 5.1 or Claude Haiku 5.5?
It depends on your use case. Claude Fable 5.1 and Claude Haiku 5.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.
How much does Claude Fable 5.1 cost compared to Claude Haiku 5.5?
Claude Fable 5.1 costs $10/M input tokens and Claude Haiku 5.5 costs $0.1/M input tokens. Claude Haiku 5.5 is $9.90/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare Claude Fable 5.1 and Claude Haiku 5.5 on Rival?
This page shows a side-by-side comparison of Claude Fable 5.1 and Claude Haiku 5.5 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.
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