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GPT-4o vs Kimi K3

Both models are evenly matched

Arena ELO

GPT-4o

Cheaper

Kimi K3

Faster

GPT-4o

Detailed Comparison

CategoryGPT-4oKimi K3
ProviderOpenAI Moonshot AI
Context Window128K 128K
Input Price ($/1M)$2.5 $0.6 WIN
Output Price ($/1M)$10 $2.5 WIN
Arena ELO1340 WINN/A
Coding30.8% SWE-bench N/A
Reasoningunknown N/A
Speed (tokens/sec)~100 t/s WINN/A
Open SourceNo Yes

Frequently Asked Questions

Which is cheaper, GPT-4o or Kimi K3?

Kimi K3 is approximately 75% cheaper than GPT-4o per million tokens.

Which is better for coding, GPT-4o or Kimi K3?

GPT-4o scores 30.8% SWE-bench on coding benchmarks, while Kimi K3 scores N/A.

Which has a larger context window?

GPT-4o supports 128K context, while Kimi K3 supports 128K.

Is GPT-4o or Kimi K3 open source?

GPT-4o is proprietary. Kimi K3 is open source.

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