tokevenClaudevsAlibaba (Qwen)
Claude Sonnet 4.5 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 Sonnet 4.5
Mid-tierQwen 3.8 Flash
Fast / BudgetInput $/MTok
$3.00
$0.15
Output $/MTok
$15.00
$0.47
Cache discount
90% off
89% off
Context
200K
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
0
Code Review
0
vs
0
Summarization
0
vs
0
Q&A
0
vs
0
Extraction
0
vs
0
Reasoning
0
vs
0
Classification
0
vs
0
Creative Writing
0
vs
0
Claude Sonnet 4.5
Qwen 3.8 Flash
Guidance
When to use Claude Sonnet 4.5 vs Qwen 3.8 Flash
Choose Claude Sonnet 4.5 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Qwen 3.8 Flash when...
- -Cost matters: 95% cheaper on input tokens
- -You need a larger context window (1M vs 200K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 4.5
Qwen 3.8 Flash
100K tokens
$0.66
$0.02Cheaper
1M tokens
$6.60
$0.25Cheaper
10M tokens
$66.00
$2.46Cheaper
FAQ
When should I use Claude Sonnet 4.5 instead of Qwen 3.8 Flash?
Claude Sonnet 4.5 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 Sonnet 4.5?
Yes. Qwen 3.8 Flash input costs $0.15/MTok vs $3.00/MTok for Claude Sonnet 4.5, saving 95% on input.
What are the context window sizes for Claude Sonnet 4.5 and Qwen 3.8 Flash?
Claude Sonnet 4.5 has a 200K 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 Sonnet 4.5 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.