tokevenClaudevsGPT
Claude Sonnet 5 vs GPT 5 Nano
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 5
Mid-tierGPT 5 Nano
Fast / BudgetInput $/MTok
$2.00
$0.05
Output $/MTok
$10.00
$0.40
Cache discount
90% off
90% off
Context
1,000K
272K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
93
vs
0
Code Review
96
vs
0
Summarization
91
vs
0
Q&A
89
vs
0
Extraction
88
vs
0
Reasoning
90
vs
0
Classification
86
vs
0
Creative Writing
87
vs
0
Claude Sonnet 5
GPT 5 Nano
Guidance
When to use Claude Sonnet 5 vs GPT 5 Nano
Choose Claude Sonnet 5 when...
- -You need a larger context window (1,000K vs 272K)
- Similar performance; consider provider preference or ecosystem fit.
Choose GPT 5 Nano when...
- -Cost matters: 98% 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
GPT 5 Nano
100K tokens
$0.44
$0.02Cheaper
1M tokens
$4.40
$0.15Cheaper
10M tokens
$44.00
$1.55Cheaper
FAQ
When should I use Claude Sonnet 5 instead of GPT 5 Nano?
Claude Sonnet 5 and GPT 5 Nano perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is GPT 5 Nano cheaper than Claude Sonnet 5?
Yes. GPT 5 Nano input costs $0.05/MTok vs $2.00/MTok for Claude Sonnet 5, saving 98% on input.
What are the context window sizes for Claude Sonnet 5 and GPT 5 Nano?
Claude Sonnet 5 has a 1,000K token context window. GPT 5 Nano has a 272K 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 GPT 5 Nano 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.