Qwen3.8 27B vs DeepSeek V4 Flash 0731: side-by-side summary

Qwen3.8 27B and DeepSeek V4 Flash 0731 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Qwen3.8 27B, from Qwen, has a 262,144-token context window and is priced at $0.45/M tokens input, $3.20/M tokens output on OpenRouter.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,048,576-token context window and is priced at $0.07966/M tokens input, $0.1593/M tokens output on OpenRouter.

Context window

• Qwen3.8 27B: 262,144 tokens
• DeepSeek V4 Flash 0731: 1,048,576 tokens

Price

• Qwen3.8 27B: $0.45/M tokens input, $3.20/M tokens output
• DeepSeek V4 Flash 0731: $0.07966/M tokens input, $0.1593/M tokens output

Provided by

• Qwen3.8 27B: Qwen
• DeepSeek V4 Flash 0731: DeepSeek

• Qwen3.8 27B model details, providers and pricing
• DeepSeek V4 Flash 0731 model details, providers and pricing