Step 3.7 Flash vs DeepSeek V4 Pro 0423: side-by-side summary

Step 3.7 Flash and DeepSeek V4 Pro 0423 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Step 3.7 Flash, from stepfun, has a 262,144-token context window and is priced at $0.16/M tokens input, $0.92/M tokens output on OpenRouter.

DeepSeek V4 Pro 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.87/M tokens input, $1.74/M tokens output on OpenRouter.

Context window

• Step 3.7 Flash: 262,144 tokens
• DeepSeek V4 Pro 0423: 1,048,576 tokens

Price

• Step 3.7 Flash: $0.16/M tokens input, $0.92/M tokens output
• DeepSeek V4 Pro 0423: $0.87/M tokens input, $1.74/M tokens output

Provided by

• Step 3.7 Flash: stepfun
• DeepSeek V4 Pro 0423: DeepSeek

• Step 3.7 Flash model details, providers and pricing
• DeepSeek V4 Pro 0423 model details, providers and pricing