Confirm Action

Are you sure you want to proceed?

Anthropic Claude Fable 5 VS Google Gemini 3.1 Flash Lite

Claude Fable 5 vs Gemini 3.1 Flash Lite: which wins at real work?

22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.

Claude Fable 5 wins 18 of 22 task areas we tested; Gemini 3.1 Flash Lite takes 4. Gemini 3.1 Flash Lite costs 34.3× less per token ($1.75 vs $60 per 1M).

18
Task areas won
4
85
Avg percentile
53
10
Top-3 finishes
0
$60.0
Price / 1M tokens
$1.75
Anthropic
Provider
Google

Gemini 3.1 Flash Lite costs 34.3× less per token ($1.75 vs $60 per 1M).

Task by task

Task area Claude Fable 5 Gemini 3.1 Flash Lite Winner
Legal & HR #1 / 110
Excellent
#86 / 110
Strong
Claude Fable 5
Creative & Comedy #1 / 110 #85 / 110 Claude Fable 5
Executive Assistant #22 / 112
Strong
#101 / 112
Usable
Claude Fable 5
Chef / Home Cooking #3 / 126
Strong
#70 / 126
Usable
Claude Fable 5
Sales #5 / 110
Strong
#67 / 110
Usable
Claude Fable 5
Presentations & Decks #20 / 110
Excellent
#80 / 110
Strong
Claude Fable 5
AI Strategy #1 / 126
Strong
#54 / 126
Strong
Claude Fable 5
Customer Support #1 / 113
Excellent
#54 / 113
Strong
Claude Fable 5
Research & Competitive Analysis #3 / 110
Excellent
#56 / 110
Usable
Claude Fable 5
Frontend & Landing Pages #58 / 109
Needs editing
#10 / 109
Usable
Gemini 3.1 Flash Lite
Coding #11 / 115
Excellent
#58 / 115
Strong
Claude Fable 5
Product & Project Management #76 / 110
Strong
#29 / 110
Excellent
Gemini 3.1 Flash Lite
Content & Brand #1 / 124
Excellent
#43 / 124
Strong
Claude Fable 5
Landing Pages #1 / 72
Strong
#43 / 72
Strong
Claude Fable 5
Data & Analytics #3 / 110
Excellent
#44 / 110
Excellent
Claude Fable 5
Investor & Pitch #3 / 66
Strong
#44 / 66
Usable
Claude Fable 5
Structured Output #68 / 113
Strong
#36 / 113
Excellent
Gemini 3.1 Flash Lite
RAG, Safety & Grounding #30 / 113
Excellent
#58 / 113
Excellent
Claude Fable 5
Translation & Localization #18 / 110
Excellent
#39 / 110
Excellent
Claude Fable 5
Training & Education #16 / 110
Excellent
#33 / 110
Excellent
Claude Fable 5
Summarization & Meeting Notes #24 / 110
Excellent
#13 / 110
Excellent
Gemini 3.1 Flash Lite
Knowledge & Docs #27 / 110
Strong
#33 / 110
Strong
Claude Fable 5

Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.

Frequently asked

Is Claude Fable 5 better than Gemini 3.1 Flash Lite?

Across 22 task areas we benchmarked, Claude Fable 5 ranks higher in 18 and Gemini 3.1 Flash Lite in 4.

Which is cheaper, Claude Fable 5 or Gemini 3.1 Flash Lite?

Gemini 3.1 Flash Lite costs 34.3× less per token ($1.75 vs $60 per 1M).

What is Claude Fable 5 better at?

Claude Fable 5 out-ranks Gemini 3.1 Flash Lite at Legal & HR, Creative & Comedy, Executive Assistant.

What is Gemini 3.1 Flash Lite better at?

Gemini 3.1 Flash Lite out-ranks Claude Fable 5 at Frontend & Landing Pages, Product & Project Management, Structured Output.

Full Claude Fable 5 review → Full Gemini 3.1 Flash Lite review → Full model leaderboard → Anthropic vs Google — every model, lab against lab →

More comparisons

This page is Spring Prompt, running in public

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s