Jina AIReaderLM

ReaderLM v2

ReaderLM v2 is Jina's 1.54-billion-parameter model for HTML parsing and extraction. It adds direct schema-based JSON output to the Markdown conversion offered by the first ReaderLM models.

How the model works

The decoder has 28 layers, a 1,536-wide hidden state and two key-value heads. Jina documents 512K tokens for combined input and output, with support for 29 languages. Contrastive loss during training targets repetitive or unstable long outputs. The model can preserve elements such as nested lists, code blocks, tables and equations.ReaderLM v2 model details

Use and access

Weights are published under CC BY-NC 4.0. The model card also documents use inside Reader with the readerlm-v2 engine setting. That engine is one part of the Reader service: fetching a URL, rendering a page and extracting content are not all properties of the downloaded language model. Its input is HTML rather than a camera image.ReaderLM v2 model detailsReaderLM v2 technical overview

Specifications & access

ReaderLM v2 specifications
DetailValue and conditions
Launch date
AccessAPI, Downloadable
Model identifiersReaderLM-v2jinaai/ReaderLM-v2
Context window512,768 tokens

Exact max_position_embeddings value in the published configuration; the model card abbreviates this as 512K. Input and generated output share the context.

ReaderLM-v2 published model configuration
Parameters1.54 billionReaderLM v2 model details
Weight licenseCC BY-NC 4.0ReaderLM v2 model details

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