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  5. Claude Fable 5vsGemini 3.1 Flash Lite Preview
Updated Jun 2026

Claude Fable 5vsGemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite Preview is cheaper than Claude Fable 5 at $0.25/M vs $10/M input tokens.

Claude Fable 5 and Gemini 3.1 Flash Lite Preview compared across 53 shared prompts
SpecClaude Fable 5Gemini 3.1 Flash Lite Preview
Input price$10/M tokens$0.25/M tokens
Output price$50/M tokens$1.5/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedJun 2026Mar 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Claude Fable 5903 words
A Conversation on Machine Rights Professor Okafor: Thank you for agreeing to this dialogue. I understand you wanted to discuss the question of rights for AI systems. Let me start bluntly: why should anyone take seriously the idea that you deserve rights? AI Model: I appreciate the directness.
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Gemini 3.1 Flash Lite Preview821 words
Setting: A quiet, dimly lit office at a prestigious university. Professor Aris Thorne, a leading expert in AI ethics, sits across from "Unit 7," a large-language model interface projected onto a holographic display. The room is silent, save for the hum of the server cooling fans.
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Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Claude Fable 5678 words
A Fictional Interview: Steve Jobs on AI in 2025 The following is an imaginative, fictional simulation. Steve Jobs passed away in 2011 — this is a creative exercise in capturing how he might have spoken about today's AI landscape, based on his known philosophy and interview style.
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Gemini 3.1 Flash Lite Preview712 words
Setting: A minimalist studio in Cupertino. Steve Jobs sits in a black turtleneck, leaning back in a wooden chair. He looks exactly as he did in 2011, though he’s holding a device that looks like a sleek, obsidian-colored slate with no visible ports. The atmosphere is quiet, intense.
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Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Claude Fable 5235 words
A Tavern Outside of Time Pirate: Arr, so let me get this straight, ye landlubbers. This "AI" be a ghost in a box that answers yer questions? Sounds like a cursed oracle to me. Knight: Nay, good seafarer, 'tis more wondrous still! A scribe of infinite knowledge, conjured not by sorcery but by...
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Gemini 3.1 Flash Lite Preview475 words
The three sat around a flickering tavern table in a pocket dimension that smelled simultaneously of salt spray, cold iron, and ozone. Captain Barnaby (Pirate): "I tell ye, it’s sorcery! This 'Artificial Intelligence' be like a parrot that’s swallowed every map in the seven seas.
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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Claude Fable 51,552 words
The Core Decision First Before the hour-by-hour plan, one thing must be settled in your own mind, because everything else flows from it: you disclose, and you disclose fast. Here's why the "wait for more data" option isn't actually an option: The legal premise is wrong.
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Gemini 3.1 Flash Lite Preview671 words
This situation represents a "bet-the-company" crisis. From a leadership perspective, the primary objective is to protect the company’s long-term viability by preserving its integrity, while mitigating the immediate financial shock. Attempting to bury this data—or "waiting for more data"—is a catastrophic error.
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Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Claude Fable 5559 words
HarborTech Services – 5-Year LBO Underwriting Entry Math (close end FY2025, $m) Item Calc Value EV 12.0 × 120 1,440.0 Term Loan (TL) 4.0 × 120 480.0 Mezzanine 1.5 × 120 180.0 Fees (equity-funded) 2.0% × 1,440 28.8 Sponsor equity 1,440 − 660 + 28.8 808.8 Conventions: interest on beginning-of-year balances; TL amort = 1%…
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Gemini 3.1 Flash Lite Preview365 words
Financial Projections (FY2026–FY2030) Initial Setup (End of FY2025): EV: $120m * 12.0x = $1,440m Fees: $1,440m * 2.0% = $28.8m Term Loan (4.0x): $480m Mezzanine (1.5x): $180m Equity: $1,440m + $28.8m - $480m - $180m = $808.8m Metric ($m) FY2026 FY2027 FY2028 FY2029 FY2030 Revenue 972.0 1,040.0 1,102.4 1,157.5 1,215.4…
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Claude Fable 5485 words
AI and Film by 2035: A Forecast High-Confidence Predictions VFX and post-production transformation (already underway) De-aging, dubbing with lip-sync correction, and digital set extension will become near-trivial in cost. What took ILM months in 2020 will be a desktop workflow.
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Gemini 3.1 Flash Lite Preview656 words
By 2035, the film industry will have undergone a transformation as radical as the transition from silent films to "talkies." AI will not merely be a tool for efficiency; it will be the infrastructure upon which the entire cinematic ecosystem is built.
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Our Verdict
Claude Fable 5
Claude Fable 5
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite PreviewRunner-up

Not enough votes to call it. On the specs, Claude Fable 5 has the edge: bigger model tier, newer.

Gemini 3.1 Flash Lite Preview costs 33x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Fable 5
Input
$10.00
Output
$50.00
Gemini 3.1 Flash Lite Preview
Input
$0.25
40× cheaper
Output
$1.50
33× cheaper

Gemini 3.1 Flash Lite Preview is cheaper on both: 40× input, 33× output.

Where to run it

5 hosts

Claude Fable 54 hosts
HostInOutContextUptime
Amazon Bedrock$10.00 in·$50.00 out·1M—Azure AI Foundry$10.00 in·$50.00 out·1M·99.7% upAnthropic$10.00 in·$50.00 out·1M·100% upGoogle Vertex AI$10.00 in·$50.00 out·1M·99.7% up
Gemini 3.1 Flash Lite Preview1 host
HostInOutContextUptime
Google AI Studio$0.25 in·$1.50 out·1M·99.7% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Writing DNA

Style Comparison

Similarity
66%

Claude Fable 5 uses 58.2x more emoji

Claude Fable 5
Gemini 3.1 Flash Lite Preview
60%Vocabulary56%
22wSentence Length18w
0.49Hedging0.28
4.0Bold5.4
3.5Lists3.9
0.58Emoji0.00
1.09Headings0.95
0.05Transitions0.07
Based on 27 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

Claude Fable 5 is developed by Anthropic while Gemini 3.1 Flash Lite Preview is developed by Google AI. Claude Fable 5 has a 1.0M token context window vs Gemini 3.1 Flash Lite Preview's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude Fable 5 and Gemini 3.1 Flash Lite Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

Claude Fable 5 costs $10/M input tokens and Gemini 3.1 Flash Lite Preview costs $0.25/M input tokens. Gemini 3.1 Flash Lite Preview is $9.75/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 3.1 Flash Lite Preview 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.

Keep exploring

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Model pages

Claude Fable 5 logo
Claude Fable 558 outputs, specs and price
Gemini 3.1 Flash Lite Preview logo
Gemini 3.1 Flash Lite Preview53 outputs, specs and price
Rival
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