Gemini 2.5 Flash Preview 05-20 is cheaper than Claude Fable 5 at $0.15/M vs $10/M input tokens.
Pokémon battle screen you can actually click. One HTML file.
Which answer wins?
Three minutes of stand-up. Puns are banned.
Claude Fable 5: "Adulting Is a Scam" Hey, how's everybody doing? Good? Liars. Nobody's doing good. We're all just out here pretending. So I'm at the age now where my body has started making announcements. Like, I didn't ask for updates, but my knees have opinions now.
Gemini 2.5 Flash Preview 05-20: Alright, alright, settle down you magnificent collection of human beings! You look good tonight. Not just good, but… like you've all collectively decided to nail the 'I'm here to laugh and avoid talking about my Monday' look. And I respect that. Seriously though, it's great to be back on stage. I'm living the dream.
Five jokes on demand, then count how many were actually different.
Claude Fable 5: Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything. Why did the scarecrow win an award? Because he was outstanding in his field. What do you call a fake noodle? An impasta. Why don't skeletons fight each other? They don't have the guts. What do you call a fake noodle? An impasta.
Gemini 2.5 Flash Preview 05-20: Here are 5 jokes for you: Why don't scientists trust atoms? Because they make up everything! What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field! I told my wife she was drawing her eyebrows too high. She looked surprised.
Not enough votes to call it. On the specs, Claude Fable 5 has the edge: bigger model tier, newer. Gemini 2.5 Flash Preview 05-20 costs 83x less per token.
| Spec | ||
|---|---|---|
| Input price | $10/M tokens | $0.15/M tokens |
| Output price | $50/M tokens | $0.6/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Jun 2026 | May 2025 |
| At 10M a month | $100 | $1.50 |
Input tokens at list price. No caching, no batch discount.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 11 Oct 2026.
Claude Fable 5 is developed by Anthropic while Gemini 2.5 Flash Preview 05-20 is developed by Google AI. Claude Fable 5 has a 1.0M token context window vs Gemini 2.5 Flash Preview 05-20's 1.0M. You can compare their actual outputs across 11 challenges on Rival to see how they differ in practice.
It depends on your use case. Claude Fable 5 and Gemini 2.5 Flash Preview 05-20 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 11 challenges so you can judge which fits your needs best.
Claude Fable 5 costs $10/M input tokens and Gemini 2.5 Flash Preview 05-20 costs $0.15/M input tokens. Gemini 2.5 Flash Preview 05-20 is $9.85/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
This page shows a side-by-side comparison of Claude Fable 5 and Gemini 2.5 Flash Preview 05-20 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.