tokevenGPTvsMoonshot (Kimi)
GPT 4o vs Kimi K3
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 4o
Mid-tierKimi K3
FlagshipInput $/MTok
$2.50
$3.00
Output $/MTok
$10.00
$15.00
Cache discount
50% off
90% off
Context
128K
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
GPT 4o
Kimi K3
Guidance
When to use GPT 4o vs Kimi K3
Choose GPT 4o when...
- -Cost matters: 17% cheaper on input tokens
Choose Kimi K3 when...
- -You need a larger context window (1M vs 128K)
- 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 4o
Kimi K3
100K tokens
$0.47Cheaper
$0.66
1M tokens
$4.75Cheaper
$6.60
10M tokens
$47.50Cheaper
$66.00
FAQ
When should I use GPT 4o instead of Kimi K3?
GPT 4o and Kimi K3 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Kimi K3 cheaper than GPT 4o?
Kimi K3 input costs $3.00/MTok, which is 20% more than GPT 4o at $2.50/MTok.
What are the context window sizes for GPT 4o and Kimi K3?
GPT 4o has a 128K 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 4o 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.