tokevenClaudevsAlibaba (Qwen)
Claude Fable 5.1 vs Qwen 3.8 Flash
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Fable 5.1
FlagshipQwen 3.8 Flash
Fast / BudgetInput $/MTok
$10.00
$0.15
Output $/MTok
$50.00
$0.47
Cache discount
98% off
89% off
Context
1M
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
74
vs
0
Code Review
0
vs
0
Summarization
71
vs
0
Q&A
0
vs
0
Extraction
75
vs
0
Reasoning
92
vs
0
Classification
0
vs
0
Creative Writing
78
vs
0
Claude Fable 5.1
Qwen 3.8 Flash
Guidance
When to use Claude Fable 5.1 vs Qwen 3.8 Flash
Choose Claude Fable 5.1 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Qwen 3.8 Flash when...
- -Cost matters: 99% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Fable 5.1
Qwen 3.8 Flash
100K tokens
$2.20
$0.02Cheaper
1M tokens
$22.00
$0.25Cheaper
10M tokens
$220.00
$2.46Cheaper
FAQ
When should I use Claude Fable 5.1 instead of Qwen 3.8 Flash?
Claude Fable 5.1 and Qwen 3.8 Flash perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Qwen 3.8 Flash cheaper than Claude Fable 5.1?
Yes. Qwen 3.8 Flash input costs $0.15/MTok vs $10.00/MTok for Claude Fable 5.1, saving 99% on input.
What are the context window sizes for Claude Fable 5.1 and Qwen 3.8 Flash?
Claude Fable 5.1 has a 1M token context window. Qwen 3.8 Flash has a 1M 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 5.1 and Qwen 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.