tokevenClaudevsGemini
Claude Fable 5 vs Gemini 3.8 Flash
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Fable 5
FlagshipGemini 3.8 Flash
Fast / BudgetInput $/MTok
$10.00
$0.75
Output $/MTok
$50.00
$3.75
Cache discount
90% off
90% off
Context
1,000K
1,048.576K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
96
vs
0
Code Review
95
vs
0
Summarization
90
vs
0
Q&A
88
vs
0
Extraction
85
vs
0
Reasoning
98
vs
0
Classification
82
vs
0
Creative Writing
95
vs
0
Claude Fable 5
Gemini 3.8 Flash
Guidance
When to use Claude Fable 5 vs Gemini 3.8 Flash
Choose Claude Fable 5 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini 3.8 Flash when...
- -Cost matters: 93% cheaper on input tokens
- -You need a larger context window (1,048.576K vs 1,000K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Fable 5
Gemini 3.8 Flash
100K tokens
$2.20
$0.16Cheaper
1M tokens
$22.00
$1.65Cheaper
10M tokens
$220.00
$16.50Cheaper
FAQ
When should I use Claude Fable 5 instead of Gemini 3.8 Flash?
Claude Fable 5 and Gemini 3.8 Flash perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Gemini 3.8 Flash cheaper than Claude Fable 5?
Yes. Gemini 3.8 Flash input costs $0.75/MTok vs $10.00/MTok for Claude Fable 5, saving 93% on input.
What are the context window sizes for Claude Fable 5 and Gemini 3.8 Flash?
Claude Fable 5 has a 1,000K token context window. Gemini 3.8 Flash has a 1,048.576K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Fable 5 and Gemini 3.8 Flash stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.