# LightOnOCR-3-4B vs Surya OCR 2.5 (slim)

> LightOnOCR-3-4B and Surya OCR 2.5 score within a point of each other for ocr, 61 and 61 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

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- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-10
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LightOnOCR-3-4B and Surya OCR 2.5 score within a point of each other on agent readiness, 61 (C) and 61 (C). Surya OCR 2.5 leads on reach and documentation and upkeep. Both do ocr.

- LightOnOCR-3-4B: C 61, rank #73 of 160 open-weight models · https://www.anchorterminal.com/tools/lightonocr-3-4b.min.md
- Surya OCR 2.5: C 61, rank #82 of 160 open-weight models · https://www.anchorterminal.com/tools/surya-ocr-2-5.min.md
- LightOnOCR-3-4B, good for Agents that need located, labelled document blocks from a model they can use commercially without conditions Ahead on Risk, 55 against 45.
- Surya OCR 2.5, good for Small companies and researchers who need quick OCR with layout on a laptop or a small GPU and fit the licence Ahead on Reach, 90 against 70; Documentation and upkeep, 57 against 51.

| Category | LightOnOCR-3-4B | Surya OCR 2.5 |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 70 | 90 |
| Risk (20%) | 55 | 45 |
| Agent interface (10%) | 70 | 70 |
| Documentation and upkeep (10%) | 51 | 57 |

| Fact (where they differ) | LightOnOCR-3-4B | Surya OCR 2.5 |
| --- | --- | --- |
| Vendor | LightOn | Endless Labs, Inc. (Datalab) |
| Licence | Apache-2.0 | Modified OpenRAIL-M (free for research, personal use and companies under $5M in revenue and funding) |
| Last release | 2026-10-09 | 2026-10-29 |
| Terms last updated | no document linked | not read yet |

Why the edge:
- Reach, Surya OCR 2.5 +20: LightOnOCR-3-4B 70 (Memory 30, the only build from LightOn is the BF16 safetensors file, 9.08 GB, and 9.08 GB × 1.2 = 10.9 GB, within 16 GB.); Surya OCR 2.5 90 (Memory 30, Datalab's own Q8_0 GGUF is 0.63 GB with a 0.21 GB projector, and 0.84 GB × 1.2 = 1.0 GB, within 16 GB.)
- Risk, LightOnOCR-3-4B +10: LightOnOCR-3-4B 55 (File safety 25, one safetensors file, no .bin, .pt or .pth files and no Python in the repository.); Surya OCR 2.5 45 (File safety 25, safetensors and GGUF only, no .bin, .pt or .pth files and no Python in the model repository.)
- Documentation and upkeep, Surya OCR 2.5 +6: LightOnOCR-3-4B 51 (Model card 11, Intended use, a limitation (instructions other than its two prompts are out of distribution), the architecture (Qwen 3.5's) and the size (4B) are…); Surya OCR 2.5 57 (Model card 17, Intended use, limitations, the architecture (a Qwen 3.5-style vision-language model with separate detection models), parameters (689M), the servi…)