Qwen3 Reranker 8B vs Rerank 4 Fast: side-by-side summary

Qwen3 Reranker 8B and Rerank 4 Fast are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Qwen3 Reranker 8B, from Qwen, has a 40,960-token context window and is priced at $0.20/M tokens on OpenRouter.

Rerank 4 Fast, from Cohere, has a 32,768-token context window and is priced at $0.002/search on OpenRouter.

Context window

• Qwen3 Reranker 8B: 40,960 tokens
• Rerank 4 Fast: 32,768 tokens

Price

• Qwen3 Reranker 8B: $0.20/M tokens
• Rerank 4 Fast: $0.002/search

Provided by

• Qwen3 Reranker 8B: Qwen
• Rerank 4 Fast: Cohere

• Qwen3 Reranker 8B model details, providers and pricing
• Rerank 4 Fast model details, providers and pricing