diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml index 0c572f0..b8ef482 100644 --- a/.github/workflows/integration.yml +++ b/.github/workflows/integration.yml @@ -24,5 +24,6 @@ jobs: env: HF_TOKEN: ${{ secrets.HF_TOKEN }} PYTHONPATH: . + TORCH_ATTN: "sdpa" run: | uv run pytest tests/integration diff --git a/LICENSE b/LICENSE index 87aecb1..e77751f 100644 --- a/LICENSE +++ b/LICENSE @@ -1,674 +1,201 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2025 Endless Labs, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. \ No newline at end of file diff --git a/README.md b/README.md index d30d65d..5f85a44 100644 --- a/README.md +++ b/README.md @@ -8,7 +8,7 @@ Chandra is an OCR model that converts images and PDFs into structured HTML/Markd - Good handwriting support - Reconstructs forms accurately, including checkboxes - Good support for tables, math, and complex layouts -- Captions images and extracts data from diagrams +- Extracts images and diagrams, with captions and structured data - Support for 40+ languages - Two inference modes: local (HuggingFace) and remote (vLLM server) @@ -17,9 +17,61 @@ Chandra is an OCR model that converts images and PDFs into structured HTML/Markd - We have a hosted API for Chandra [here](https://www.datalab.to/), which also includes other accuracy improvements and document workflows. - There is a free playground [here](https://www.datalab.to/playground) if you want to try it out without installing. +## Quickstart + +The easiest way to start is with the CLI tools: + +```shell +pip install chandra-ocr + +# With VLLM +chandra_vllm +chandra input.pdf ./output + +# With HuggingFace +chandra input.pdf ./output --method hf + +# Interactive streamlit app +chandra_app +``` + +## Benchmarks + +| **Model** | ArXiv | Old Scans Math | Tables | Old Scans | Headers and Footers | Multi column | Long tiny text | Base | Overall | +|:----------|:--------:|:--------------:|:--------:|:---------:|:-------------------:|:------------:|:--------------:|:--------:|:--------------:| +| Datalab Chandra v0.1.0 | 81.4 | **80.3** | **89.4** | **50.0** | 88.3 | **81.0** | **91.6** | **99.9** | **82.7 ± 0.9** | +| Datalab Marker v1.10.0 | **83.8** | 69.7 | 74.8 | 32.3 | 86.6 | 79.4 | 85.7 | 99.6 | 76.5 ± 1.0 | +| Mistral OCR API | 77.2 | 67.5 | 60.6 | 29.3 | 93.6 | 71.3 | 77.1 | 99.4 | 72.0 ± 1.1 | +| Deepseek OCR | 75.2 | 67.9 | 79.1 | 32.9 | 96.1 | 66.3 | 78.5 | 97.7 | 74.2 ± 1.0 | +| GPT-4o (Anchored) | 53.5 | 74.5 | 70.0 | 40.7 | 93.8 | 69.3 | 60.6 | 96.8 | 69.9 ± 1.1 | +| Gemini Flash 2 (Anchored) | 54.5 | 56.1 | 72.1 | 34.2 | 64.7 | 61.5 | 71.5 | 95.6 | 63.8 ± 1.2 | +| Qwen 3 VL | 70.2 | 75.1 | 45.6 | 37.5 | 89.1 | 62.1 | 43.0 | 94.3 | 64.6 ± 1.1 | +| olmOCR v0.3.0 | 78.6 | 79.9 | 72.9 | 43.9 | **95.1** | 77.3 | 81.2 | 98.9 | 78.5 ± 1.1 | + + +## Examples + +| Type | Name | Link | +|------|------|------| +| Tables | Water Damage Form | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/tables/water_damage.png) | +| Tables | 10K Filing | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/tables/10k.png) | +| Forms | Handwritten Form | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/forms/handwritten_form.png) | +| Forms | Lease Agreement | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/forms/lease.png) | +| Handwriting | Doctor Note | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/handwriting/doctor_note.png) | +| Handwriting | Math Homework | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/handwriting/math_hw.png) | +| Books | Geography Textbook | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/books/geo_textbook_page.png) | +| Books | Exercise Problems | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/books/exercises.png) | +| Math | Attention Diagram | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/attn_all.png) | +| Math | Worksheet | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/worksheet.png) | +| Math | EGA Page | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/ega.png) | +| Newspapers | New York Times | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/newspapers/nyt.png) | +| Newspapers | LA Times | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/newspapers/la_times.png) | +| Other | Transcript | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/other/transcript.png) | +| Other | Flowchart | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/other/flowchart.png) | + ## Installation -### From PyPI (Recommended) +### Package ```bash pip install chandra-ocr @@ -28,7 +80,7 @@ pip install chandra-ocr ### From Source ```bash -git clone https://github.com/yourusername/chandra.git +git clone https://github.com/datalab-to/chandra.git cd chandra uv sync source .venv/bin/activate @@ -41,7 +93,7 @@ source .venv/bin/activate Process single files or entire directories: ```bash -# Single file, with vllm server (see below for how to launch) +# Single file, with vllm server (see below for how to launch vllm) chandra input.pdf ./output --method vllm # Process all files in a directory with local model @@ -87,13 +139,15 @@ This launches a Docker container with optimized inference settings. Configure vi - `VLLM_MODEL_NAME`: Model name for the server (default: `chandra`) - `VLLM_GPUS`: GPU device IDs (default: `0`) +You can also start your own vllm server with the `datalab-to/chandra` model. + ### Configuration Settings can be configured via environment variables or a `local.env` file: ```bash # Model settings -MODEL_CHECKPOINT=datalab-to/chandra-0.2.8 +MODEL_CHECKPOINT=datalab-to/chandra MAX_OUTPUT_TOKENS=8192 # vLLM settings @@ -102,40 +156,15 @@ VLLM_MODEL_NAME=chandra VLLM_GPUS=0 ``` -## Benchmarks - -| **Model** | ArXiv | Old Scans Math | Tables | Old Scans | Headers and Footers | Multi column | Long tiny text | Base | Overall | -|:----------|:--------:|:--------------:|:--------:|:---------:|:-------------------:|:------------:|:--------------:|:--------:|:--------------:| -| Datalab Chandra v0.1.0 | 81.4 | **80.3** | **89.4** | **50.0** | 88.3 | **81.0** | **91.6** | **99.9** | **82.7 ± 0.9** | -| Datalab Marker v1.10.0 | **83.8** | 69.7 | 74.8 | 32.3 | 86.6 | 79.4 | 85.7 | 99.6 | 76.5 ± 1.0 | -| Mistral OCR API | 77.2 | 67.5 | 60.6 | 29.3 | 93.6 | 71.3 | 77.1 | 99.4 | 72.0 ± 1.1 | -| Deepseek OCR | 75.2 | 67.9 | 79.1 | 32.9 | 96.1 | 66.3 | 78.5 | 97.7 | 74.2 ± 1.0 | -| GPT-4o (Anchored) | 53.5 | 74.5 | 70.0 | 40.7 | 93.8 | 69.3 | 60.6 | 96.8 | 69.9 ± 1.1 | -| Gemini Flash 2 (Anchored) | 54.5 | 56.1 | 72.1 | 34.2 | 64.7 | 61.5 | 71.5 | 95.6 | 63.8 ± 1.2 | -| Qwen 3 VL | 70.2 | 75.1 | 45.6 | 37.5 | 89.1 | 62.1 | 43.0 | 94.3 | 64.6 ± 1.1 | -| olmOCR v0.3.0 | 78.6 | 79.9 | 72.9 | 43.9 | **95.1** | 77.3 | 81.2 | 98.9 | 78.5 ± 1.1 | - - -## Examples - -| Type | Name | Link | -|------|------|------| -| Tables | Water Damage Form | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/tables/water_damage.png) | -| Tables | 10K Filing | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/tables/10k.png) | -| Forms | Handwritten Form | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/forms/handwritten_form.png) | -| Forms | Lease Agreement | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/forms/lease.png) | -| Handwriting | Doctor Note | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/handwriting/doctor_note.png) | -| Handwriting | Math Homework | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/handwriting/math_hw.png) | -| Books | Geography Textbook | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/books/geo_textbook_page.png) | -| Books | Exercise Problems | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/books/exercises.png) | -| Math | Attention Diagram | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/attn_all.png) | -| Math | Worksheet | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/worksheet.png) | -| Math | EGA Page | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/math/ega.png) | -| Newspapers | New York Times | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/newspapers/nyt.png) | -| Newspapers | LA Times | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/newspapers/la_times.png) | -| Other | Transcript | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/other/transcript.png) | -| Other | Flowchart | [View](https://github.com/datalab-to/chandra/blob/master/assets/examples/other/flowchart.png) | - # Commercial usage -This code is GPL-3, and our model weights use a modified OpenRAIL-M license (free for research, personal use, and startups under $2M funding/revenue). To remove the GPL license requirements, or for broader commercial licensing, visit our pricing page [here](https://www.datalab.to/pricing?utm_source=gh-chandra). \ No newline at end of file +This code is Apache 2.0, and our model weights use a modified OpenRAIL-M license (free for research, personal use, and startups under $2M funding/revenue, cannot be used competitively with our API). To remove the OpenRAIL license requirements, or for broader commercial licensing, visit our pricing page [here](https://www.datalab.to/pricing?utm_source=gh-chandra). + +# Credits + +Thank you to the following open source projects: + +- [Huggingface Transformers](https://github.com/huggingface/transformers) +- [VLLM](https://github.com/vllm-project/vllm) +- [olmocr](github.com/allenai/olmocr) +- [Qwen 3 VL](https://github.com/QwenLM/Qwen3) \ No newline at end of file diff --git a/chandra/model/hf.py b/chandra/model/hf.py index 52988c3..37f4cba 100644 --- a/chandra/model/hf.py +++ b/chandra/model/hf.py @@ -65,12 +65,15 @@ def process_batch_element(item: BatchInputItem, processor): def load_model(): + device_map = "auto" + if settings.TORCH_DEVICE: + device_map = {"": settings.TORCH_DEVICE} model = Qwen3VLForConditionalGeneration.from_pretrained( settings.MODEL_CHECKPOINT, dtype=settings.TORCH_DTYPE, - device_map="auto", + device_map=device_map, attn_implementation=settings.TORCH_ATTN_IMPLEMENTATION, - ).to(settings.TORCH_DEVICE_MODEL) + ) model = model.eval() processor = Qwen3VLProcessor.from_pretrained(settings.MODEL_CHECKPOINT) model.processor = processor diff --git a/chandra/settings.py b/chandra/settings.py index 9f560d0..a56947e 100644 --- a/chandra/settings.py +++ b/chandra/settings.py @@ -13,6 +13,7 @@ class Settings(BaseSettings): MODEL_CHECKPOINT: str = "datalab-to/chandra-0.2.8" TORCH_DEVICE: str | None = None MAX_OUTPUT_TOKENS: int = 8192 + TORCH_ATTN: str | None = None # vLLM server settings VLLM_API_KEY: str = "EMPTY" @@ -44,6 +45,9 @@ class Settings(BaseSettings): @computed_field @property def TORCH_ATTN_IMPLEMENTATION(self) -> str: + if self.TORCH_ATTN is not None: + return self.TORCH_ATTN + if self.TORCH_DEVICE_MODEL == "cuda": return "flash_attention_2" else: