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Reranker API
Rerank search results for Bantu languages
Improve search relevance by reranking candidate results against a query. Purpose-built for Bantu languages, so your RAG pipelines and search engines return the most relevant documents first.
Features
What you get
Rerank documents against a query in 22 Bantu languages
Dramatically improve search and RAG relevance
Cross-lingual reranking (query in English, documents in Zulu)
Batch up to 1000 documents per request
Sub-100ms latency for typical workloads
REST API — simple POST /rerank
Pricing: $0.06 per 1M tokens
Request
curl -X POST https://api.bhala.ai/v1/rerank \
-H "Authorization: Bearer bh_sk_..." \
-H "Content-Type: application/json" \
-d '{
"query": "How do I pay my bill?",
"documents": [
"Ungakhokha i-akhawunti yakho nge-EFT.",
"Izindaba zakamuva zezwe.",
"Inkokhelo yakho ka-R500 iphumelele."
],
"model": "bantu-rerank-v1",
"top_n": 2
}'Response
{
"object": "rerank",
"results": [
{
"index": 0,
"relevance_score": 0.94,
"document": "Ungakhokha i-akhawunti yakho nge-EFT."
},
{
"index": 2,
"relevance_score": 0.71,
"document": "Inkokhelo yakho ka-R500 iphumelele."
}
],
"model": "bantu-rerank-v1",
"usage": {
"prompt_tokens": 42,
"total_tokens": 42
}
}Use Cases
What you can build with Reranker API
Improve RAG pipeline relevance for Bantu text
Search result reranking for multilingual content
Document retrieval for customer support in local languages
Legal and compliance document search