tokevenGPTvsMoonshot (Kimi)
GPT 5.4 Nano vs Kimi K3
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.4 Nano
Fast / BudgetKimi K3
FlagshipInput $/MTok
$0.20
$3.00
Output $/MTok
$1.25
$15.00
Cache discount
90% off
90% off
Context
272K
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
56
vs
0
Code Review
0
vs
0
Summarization
67
vs
0
Q&A
0
vs
0
Extraction
74
vs
0
Reasoning
81
vs
0
Classification
0
vs
0
Creative Writing
68
vs
0
GPT 5.4 Nano
Kimi K3
Guidance
When to use GPT 5.4 Nano vs Kimi K3
Choose GPT 5.4 Nano when...
- -Cost matters: 93% cheaper on input tokens
Choose Kimi K3 when...
- -You need a larger context window (1M vs 272K)
- 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 5.4 Nano
Kimi K3
100K tokens
$0.05Cheaper
$0.66
1M tokens
$0.52Cheaper
$6.60
10M tokens
$5.15Cheaper
$66.00
FAQ
When should I use GPT 5.4 Nano instead of Kimi K3?
GPT 5.4 Nano and Kimi K3 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Kimi K3 cheaper than GPT 5.4 Nano?
Kimi K3 input costs $3.00/MTok, which is 1400% more than GPT 5.4 Nano at $0.20/MTok.
What are the context window sizes for GPT 5.4 Nano and Kimi K3?
GPT 5.4 Nano has a 272K token context window. Kimi K3 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 GPT 5.4 Nano and Kimi K3 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.