DeepSeek V4 Flash 0731 vs Step 3.7 Flash: side-by-side summary

DeepSeek V4 Flash 0731 and Step 3.7 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 $0.07/M tokens input, $0.14/M tokens output on OpenRouter.

Step 3.7 Flash, from stepfun, has a 262,144-token context window and is priced at $0.20/M tokens input, $1.15/M tokens output on OpenRouter.

Context window

• DeepSeek V4 Flash 0731: 1,048,576 tokens
• Step 3.7 Flash: 262,144 tokens

Price

• DeepSeek V4 Flash 0731: $0.07/M tokens input, $0.14/M tokens output
• Step 3.7 Flash: $0.20/M tokens input, $1.15/M tokens output

Provided by

• DeepSeek V4 Flash 0731: DeepSeek
• Step 3.7 Flash: stepfun

• DeepSeek V4 Flash 0731 model details, providers and pricing
• Step 3.7 Flash model details, providers and pricing