Jina AIReaderLM

ReaderLM 1.5B

ReaderLM 1.5B is a trained HTML-to-Markdown converter. Jina built it from paired HTML and Markdown examples, with a stated 256K context. It is part of the first ReaderLM release rather than a general conversation model.

How the model works

The 1.5B model increases capacity within the original conversion family. Jina supplies a notebook that runs the model on a free Colab T4. Raw HTML is supplied directly, without a prefix instruction. The first-generation release is oriented to Markdown; schema-based JSON is a documented addition in ReaderLM v2.ReaderLM 1.5B model details

Use and access

Weights remain available under CC BY-NC 4.0, alongside documented cloud marketplace packages. The provider now points users toward ReaderLM v2, but that does not remove this identifiable older checkpoint. The two first-generation sizes have distinct weights and are listed separately.ReaderLM 1.5B model detailsReaderLM 1.5B technical overview

Specifications & access

ReaderLM 1.5B specifications
DetailValue and conditions
Launch date
AccessDownloadable
Model identifiersreader-lm-1.5bjinaai/reader-lm-1.5b
Context window256,000 tokens

Exact max_position_embeddings value in the published configuration; the model card abbreviates this as 256K. Input and generated output share the context.

reader-lm-1.5b published model configuration
Parameters1.5 billionReaderLM 1.5B model details
Weight licenseCC BY-NC 4.0ReaderLM 1.5B model details

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    A small language model that turns HTML into Markdown or schema-based JSON.

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