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Mixedbread Rerank

Reranks an initial set of search results with specialized models to improve relevance for complex queries.

Mixedbread Rerank

Mixedbread Rerank adds a second ranking stage to Mixedbread Store searches. It can use the default listwise model or a selected supported model, limit the returned results, and include selected metadata.

It is used by developers building search, retrieval-augmented generation, and knowledge-base applications through the API or CLI. Reranking is billed separately: semantic search with reranking costs $7.50 per 1,000 queries, while Toast 1 searches with reranking cost $2.50 per 1,000 queries.

Features

  • Enables reranking with a boolean search option
  • Uses mxbai-rerank-v3.1-listwise as the default model
  • Supports listwise and pointwise reranking models
  • Sets a reranking top-k limit
  • Includes all or selected metadata in results
  • Works through the Mixedbread Stores API
  • Supports reranking from the Mixedbread CLI

Use cases

  • Improve relevance for complex knowledge-base searches
  • Rerank retrieved passages for retrieval-augmented generation
  • Prioritize recent documents or primary sources
  • Refine search results after semantic retrieval
  • Search internal stores from command-line workflows

Pros

    Cons

      Latest updates

      • Speaker Labels in Audio and Video

        Audio and video transcriptions now label speakers, and m4a, aac, and webm audio are supported.

      • New File Types

        Uploads now support JSON, JSON Lines, XML, XBRL filings, and Outlook .msg emails with filterable email metadata.

      • Better HTML Ingestion

        HTML files are parsed as documents and returned as clean Markdown; billing is based on extracted text.

      • Domain Filters for Web Search

        The mixedbread/web Store supports domain filters, and web results now include metadata.domain.

      • Metrics Page

        A metrics page shows latency, throughput, and usage across search, ingestion, models, and agents.

      Capabilities

      • Choice of models — “Reranking Models : Use any supported reranking model.” source
      • API — “Mixedbread is an API for integrating fast, multimodal search into your applications, agents, and AI systems.” source
      • Official SDKs — “from mixedbread import Mixedbread” source
      • Runs models for you — “This uses our default reranking model ( mixedbread-ai/mxbai-rerank-v3.1-listwise ) with standard settings to improve your search results.” source
      • Search over your data — “Query your store using natural language.” source

      Get it

      Pricing

      Starting price
      $20/mo
      Prices checked
      2026-10-25

      Starter

      Free

      • $5 in one-time credits
      • 3 workspace users
      • 3 stores
      • 100 queries/min, 6,000 uploads/min
      • Community Slack support

      Scale

      • $20 / month
      • $20 of credits included every month
      • Unlimited workspace users
      • 10,000 stores
      • 2,400 queries/min, 12,000 uploads/min
      • Automatic backups
      • Priority Slack support (same-day SLA)

      Enterprise

      Price on request

      • Volume-based discounts
      • Unlimited workspace users
      • Unlimited stores
      • Custom rate limits & SLA
      • Automatic backups, point-in-time recovery
      • Dedicated support team
      Official website