tokevenClaudevsDeepSeek
Claude Sonnet 5 vs DeepSeek V3
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 5
Mid-tierDeepSeek V3
Mid-tierInput $/MTok
$2.00
$0.27
Output $/MTok
$10.00
$1.10
Cache discount
90% off
74% off
Context
1M
164K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
68
vs
0
Code Review
96
vs
0
Summarization
64
vs
0
Q&A
89
vs
0
Extraction
70
vs
0
Reasoning
89
vs
0
Classification
86
vs
0
Creative Writing
62
vs
0
Claude Sonnet 5
DeepSeek V3
Guidance
When to use Claude Sonnet 5 vs DeepSeek V3
Choose Claude Sonnet 5 when...
- -You need a larger context window (1M vs 164K)
- Similar performance; consider provider preference or ecosystem fit.
Choose DeepSeek V3 when...
- -Cost matters: 87% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 5
DeepSeek V3
100K tokens
$0.44
$0.05Cheaper
1M tokens
$4.40
$0.52Cheaper
10M tokens
$44.00
$5.19Cheaper
FAQ
When should I use Claude Sonnet 5 instead of DeepSeek V3?
Claude Sonnet 5 and DeepSeek V3 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is DeepSeek V3 cheaper than Claude Sonnet 5?
Yes. DeepSeek V3 input costs $0.27/MTok vs $2.00/MTok for Claude Sonnet 5, saving 87% on input.
What are the context window sizes for Claude Sonnet 5 and DeepSeek V3?
Claude Sonnet 5 has a 1M token context window. DeepSeek V3 has a 164K 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 5 and DeepSeek V3 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.