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  1. Home
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Qwen3.8 Flash vs DeepSeek V4 Flash 0731

Compare Qwen3.8 Flash from Qwen and DeepSeek V4 Flash 0731 from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for qwen
Qwen3.8 Flash
Favicon for deepseek
DeepSeek V4 Flash 0731
Favicon for qwen
Qwen3.8 Flash
Favicon for deepseek
DeepSeek V4 Flash 0731

Overview

Qwen3.8 Flash
Author
Qwen
DeepSeek V4 Flash 0731
Author
DeepSeek
Qwen3.8 Flash
Context length
1Mtokens
DeepSeek V4 Flash 0731
Context length
1.05Mtokens
Qwen3.8 Flash
Reasoning
DeepSeek V4 Flash 0731
Reasoning
Qwen3.8 Flash
Input modalities
DeepSeek V4 Flash 0731
Input modalities
Qwen3.8 Flash
Output modalities
DeepSeek V4 Flash 0731
Output modalities

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 $0.15/M tokens input, $0.47/M tokens output on OpenRouter.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,048,576-token context window and is priced at $0.0144/M tokens input, $0.576/M tokens output on OpenRouter.

Context window
  • Qwen3.8 Flash: 1,000,000 tokens
  • DeepSeek V4 Flash 0731: 1,048,576 tokens
Price
  • Qwen3.8 Flash: $0.15/M tokens input, $0.47/M tokens output
  • DeepSeek V4 Flash 0731: $0.0144/M tokens input, $0.576/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

Qwen3.8 Flash vs DeepSeek V4 Flash 0731 at a glance

Qwen3.8 Flash vs DeepSeek V4 Flash 0731 comparison
AttributeQwen3.8 FlashDeepSeek V4 Flash 0731
Input price$0.15/M tokens$0.0144/M tokens
Output price$0.47/M tokens$0.576/M tokens
Context window1,000,000 tokens1,048,576 tokens
Intelligence IndexNot available34.3
Coding IndexNot available69.1
Agentic IndexNot available41.0
Latency (p50)1.64 s1.49 s
Throughput (p50)46.0 tok/s17.0 tok/s

Benchmark data updated Oct 13, 2026

Frequently asked questions

Is Qwen3.8 Flash cheaper than DeepSeek V4 Flash 0731?

Qwen3.8 Flash and DeepSeek V4 Flash 0731 trade off on price: Qwen3.8 Flash costs $0.15/M tokens input and $0.47/M tokens output, while DeepSeek V4 Flash 0731 costs $0.0144/M tokens input and $0.576/M tokens output, so DeepSeek V4 Flash 0731 is cheaper for input tokens and Qwen3.8 Flash is cheaper for output tokens.

Which has the longer context window, Qwen3.8 Flash or DeepSeek V4 Flash 0731?

DeepSeek V4 Flash 0731 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Qwen3.8 Flash.

Which is faster, Qwen3.8 Flash or DeepSeek V4 Flash 0731?

Qwen3.8 Flash is faster on OpenRouter, generating a median 46.0 tokens per second compared with 17.0 tokens per second for DeepSeek V4 Flash 0731.