Overview
DeepSeek V4 Flash 0731 vs Claude Opus 5: side-by-side summary
DeepSeek V4 Flash 0731 and Claude Opus 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 $0.03/M tokens input, $0.13/M tokens output on OpenRouter.
Claude Opus 5, from Anthropic, has a 1,000,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.
- Context window
- DeepSeek V4 Flash 0731: 1,310,720 tokens
- Claude Opus 5: 1,000,000 tokens
- Price
- DeepSeek V4 Flash 0731: $0.03/M tokens input, $0.13/M tokens output
- Claude Opus 5: $5/M tokens input, $25/M tokens output
- Provided by
- DeepSeek V4 Flash 0731: DeepSeek
- Claude Opus 5: Anthropic