DeepSeek V4 Flash 0731 vs Kimi K3: side-by-side summary

DeepSeek V4 Flash 0731 and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,310,720-token context window and is priced at $0.065/M tokens input, $0.14/M tokens output on OpenRouter.

Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $2.60/M tokens input, $13/M tokens output on OpenRouter.

Context window

• DeepSeek V4 Flash 0731: 1,310,720 tokens
• Kimi K3: 1,048,576 tokens

Price

• DeepSeek V4 Flash 0731: $0.065/M tokens input, $0.14/M tokens output
• Kimi K3: $2.60/M tokens input, $13/M tokens output

Provided by

• DeepSeek V4 Flash 0731: DeepSeek
• Kimi K3: moonshotai

• DeepSeek V4 Flash 0731 model details, providers and pricing
• Kimi K3 model details, providers and pricing