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DeepSeek V4 Flash 0731 vs Grok 4.5: side-by-side summary

DeepSeek V4 Flash 0731 and Grok 4.5 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 $0.0786/M tokens input, $0.1572/M tokens output on OpenRouter.

Grok 4.5, from SpaceXAI, has a 500,000-token context window and is priced at $2/M tokens input, $6/M tokens output on OpenRouter.

Context window
  • DeepSeek V4 Flash 0731: 1,310,720 tokens
  • Grok 4.5: 500,000 tokens
Price
  • DeepSeek V4 Flash 0731: $0.0786/M tokens input, $0.1572/M tokens output
  • Grok 4.5: $2/M tokens input, $6/M tokens output
Provided by
  • DeepSeek V4 Flash 0731: DeepSeek
  • Grok 4.5: SpaceXAI
  • DeepSeek V4 Flash 0731 model details, providers and pricing
  • Grok 4.5 model details, providers and pricing