Hy4 preview vs Mistral OCR 3: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hy4 preview and Mistral OCR 3 — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Hy4 preview
Tencent
Tencent's open-weight Hy4 preview, a 770B-parameter Mixture-of-Experts model with 49B active parameters and a 1M-token context window.
Key features
- 770B Mixture-of-Experts Architecture: Holds 770 billion total parameters while activating only 49 billion per token, so capacity scales without proportional inference cost.
- 1M-Token Context Window: Accepts inputs exceeding one million tokens, allowing whole codebases, long document sets or extended agent traces in a single prompt.
- Apache 2.0 Open Weights: Released under a permissive licence that allows commercial use, modification and redistribution with no separate agreement.
- Productivity Task Focus: Tuned for real-world coding, office work and scientific research rather than narrow benchmark optimisation.
- Multi-Product Availability: Accessible globally through Tencent's WorkBuddy, CodeBuddy, Yuanbao and ima applications in addition to the raw weights.
- API Access via TokenHub and OpenRouter: Can be called through Tencent Cloud TokenHub or OpenRouter for teams that prefer hosted inference over self-hosting.
Best for
- Whole-Repository Code Work: Load an entire codebase into the million-token context to reason about refactors and cross-file dependencies at once.
- Long-Horizon Agent Tasks: Drive multi-step agent workflows where the full history of tool calls and intermediate results must stay in context.
- Self-Hosted Deployment: Run a frontier-scale open-weight model on private infrastructure where data cannot leave the organisation.
- Scientific Literature Analysis: Ingest large collections of papers or experimental logs and synthesise findings without chunking the input.
- Office Document Processing: Summarise, draft and restructure long reports, contracts and spreadsheets in enterprise workflows.
- Commercial Fine-Tuning: Adapt the weights for a proprietary product under the Apache 2.0 licence without negotiating a model licence.
Mistral OCR 3
Mistral AI
High-accuracy, efficient OCR designed to improve document processing accuracy and speed.
Key features
- High-Accuracy Text Recognition: Improves character- and word-level recognition accuracy for printed and scanned documents, reducing transcription errors for downstream tasks.
- Efficient Inference: Optimized model architecture and runtime characteristics designed to lower latency and compute cost for large-scale document processing workloads.
- Document Layout Preservation: Extracts and preserves document layout and structural information (paragraphs, tables, headings) to support structured data extraction and downstream parsing.
- Robust Preprocessing and Noise Handling: Handles noisy inputs such as low-resolution scans, skew, and artifacts to produce stable OCR outputs across varied document qualities.
- Multi-Page and Batch Processing: Built to efficiently process multi-page documents and large batches, enabling scalable digitization and automation pipelines.
- Integration-Friendly Outputs: Produces machine-readable outputs suitable for direct ingestion by downstream systems (indexing, RPA, NLP pipelines) to accelerate end-to-end automation.
- High-accuracy text recognition optimized for documents
- Efficient processing for high-volume document workloads
- Structured document understanding and layout-aware extraction
- Designed for deployment in document processing pipelines
- Improves digitization and automation of paper and digital documents
Best for
- Automated Invoice and Receipt Processing: Extracts line items, totals, dates, and vendor information to feed accounting and ERP systems, reducing manual data entry.
- Form and Survey Digitization: Converts filled forms and questionnaires into structured data by recognizing fields, labels, and handwritten or printed responses.
- Archival Document Digitization: Converts large collections of scanned historical or legacy documents into searchable text with preserved layout for libraries and archives.
- Document Search and Indexing: Enables full-text search and metadata extraction for enterprise document stores and content management systems.
- Compliance and Audit Workflows: Automates extraction of key fields and structured records to support reporting, auditing, and regulatory compliance checks.
- Invoice and receipt data extraction for accounting automation
- Digitization of paper archives and searchable document storage
- Form and contract parsing for enterprise workflows
- Data capture from administrative and government documents
- Preprocessing for downstream NLP and information retrieval tasks