Qwen3 Embedding 4B vs Riverflow V2 Fast: side-by-side summary

Qwen3 Embedding 4B and Riverflow V2 Fast are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Qwen3 Embedding 4B, from Qwen, has a 32,768-token context window and is priced at $0.02/M tokens on OpenRouter.

Riverflow V2 Fast, from Sourceful, has a 8,192-token context window and is priced from $0.02/image on OpenRouter.

Context window

• Qwen3 Embedding 4B: 32,768 tokens
• Riverflow V2 Fast: 8,192 tokens

Price

• Qwen3 Embedding 4B: $0.02/M tokens
• Riverflow V2 Fast: from $0.02/image

Provided by

• Qwen3 Embedding 4B: Qwen
• Riverflow V2 Fast: Sourceful

• Qwen3 Embedding 4B model details, providers and pricing
• Riverflow V2 Fast model details, providers and pricing