Overview
DeepSeek V4 Flash 0731 vs GPT-5.6 Luna vs GLM 5.3 Flash: side-by-side summary
DeepSeek V4 Flash 0731, GPT-5.6 Luna, and GLM 5.3 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 1,310,720-token context window and is priced at $0.04/M tokens input, $0.10/M tokens output on OpenRouter.
GPT-5.6 Luna, from OpenAI, has a 1,050,000-token context window and is priced at $0.20/M tokens input, $1.20/M tokens output on OpenRouter.
GLM 5.3 Flash, from Z.ai, has a 1,310,720-token context window and is priced at $0.075/M tokens input, $0.25/M tokens output on OpenRouter.
- Context window
- DeepSeek V4 Flash 0731: 1,310,720 tokens
- GPT-5.6 Luna: 1,050,000 tokens
- GLM 5.3 Flash: 1,310,720 tokens
- Price
- DeepSeek V4 Flash 0731: $0.04/M tokens input, $0.10/M tokens output
- GPT-5.6 Luna: $0.20/M tokens input, $1.20/M tokens output
- GLM 5.3 Flash: $0.075/M tokens input, $0.25/M tokens output
- Provided by
- DeepSeek V4 Flash 0731: DeepSeek
- GPT-5.6 Luna: OpenAI
- GLM 5.3 Flash: Z.ai