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

Qwen3.8 Flash 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 Flash, from Qwen, has a 1,000,000-token context window and is priced at $0.16/M tokens input, $0.47/M tokens output on OpenRouter.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,310,720-token context window and is priced at $0.03/M tokens input, $0.075/M tokens output on OpenRouter.

Context window

• Qwen3.8 Flash: 1,000,000 tokens
• DeepSeek V4 Flash 0731: 1,310,720 tokens

Price

• Qwen3.8 Flash: $0.16/M tokens input, $0.47/M tokens output
• DeepSeek V4 Flash 0731: $0.03/M tokens input, $0.075/M tokens output

Provided by

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

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