tokevenGPTvsDeepSeek
GPT 5 Nano vs DeepSeek R1
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5 Nano
Fast / BudgetDeepSeek R1
Mid-tierInput $/MTok
$0.05
$0.55
Output $/MTok
$0.40
$2.19
Cache discount
90% off
75% off
Context
272K
128K
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
GPT 5 Nano
DeepSeek R1
Guidance
When to use GPT 5 Nano vs DeepSeek R1
Choose GPT 5 Nano when...
- -Cost matters: 91% cheaper on input tokens
- -You need a larger context window (272K vs 128K)
Choose DeepSeek R1 when...
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5 Nano
DeepSeek R1
100K tokens
$0.02Cheaper
$0.10
1M tokens
$0.15Cheaper
$1.04
10M tokens
$1.55Cheaper
$10.42
FAQ
When should I use GPT 5 Nano instead of DeepSeek R1?
GPT 5 Nano and DeepSeek R1 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is DeepSeek R1 cheaper than GPT 5 Nano?
DeepSeek R1 input costs $0.55/MTok, which is 1000% more than GPT 5 Nano at $0.05/MTok.
What are the context window sizes for GPT 5 Nano and DeepSeek R1?
GPT 5 Nano has a 272K token context window. DeepSeek R1 has a 128K 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 GPT 5 Nano and DeepSeek R1 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.