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

Compare DeepSeek V4 Flash 0731 from DeepSeek and Qwen3.8 Flash from Qwen 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 deepseek
DeepSeek V4 Flash 0731
Favicon for qwen
Qwen3.8 Flash
Favicon for deepseek
DeepSeek V4 Flash 0731
Favicon for qwen
Qwen3.8 Flash

Overview

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

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

DeepSeek V4 Flash 0731 and Qwen3.8 Flash 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 1,048,576-token context window and is priced at $0.0144/M tokens input, $0.576/M tokens output on OpenRouter.

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.

Context window
  • DeepSeek V4 Flash 0731: 1,048,576 tokens
  • Qwen3.8 Flash: 1,000,000 tokens
Price
  • DeepSeek V4 Flash 0731: $0.0144/M tokens input, $0.576/M tokens output
  • Qwen3.8 Flash: $0.15/M tokens input, $0.47/M tokens output
Provided by
  • DeepSeek V4 Flash 0731: DeepSeek
  • Qwen3.8 Flash: Qwen
  • DeepSeek V4 Flash 0731 model details, providers and pricing
  • Qwen3.8 Flash model details, providers and pricing

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

DeepSeek V4 Flash 0731 vs Qwen3.8 Flash comparison
AttributeDeepSeek V4 Flash 0731Qwen3.8 Flash
Input price$0.0144/M tokens$0.15/M tokens
Output price$0.576/M tokens$0.47/M tokens
Context window1,048,576 tokens1,000,000 tokens
Intelligence Index34.3Not available
Coding Index69.1Not available
Agentic Index41.0Not available
Latency (p50)1.76 s1.63 s
Throughput (p50)16.0 tok/s44.0 tok/s

Benchmark data updated Oct 13, 2026

Frequently asked questions

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

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

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, DeepSeek V4 Flash 0731 or Qwen3.8 Flash?

Qwen3.8 Flash is faster on OpenRouter, generating a median 44.0 tokens per second compared with 16.0 tokens per second for DeepSeek V4 Flash 0731.