Hy4 preview vs TwelveLabs Marengo 3.0: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hy4 preview and TwelveLabs Marengo 3.0 — 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.
TwelveLabs Marengo 3.0
TwelveLabs
Multimodal embedding model that creates holistic video/audio/text/image embeddings for semantic search and video understanding.
Key features
- Multimodal Embedding: Produces unified embeddings from video frames, audio tracks, and text (transcripts/metadata) to represent multimodal context in a single vector space.
- Indexing and Searchable Indexes: SDK workflows let users create searchable indexes from uploaded videos to support semantic retrieval with text or image queries.
- Frame- and Shot-Level Analysis: Supports extraction of frame-level and shot-level metadata (frames, shots, transcripts) for fine-grained search and analytics workflows.
- SDKs and Developer Tools: Official Python and JavaScript SDKs provide APIs to create indexes, upload videos, and run embedding or analysis tasks programmatically.
- Configurable Embedding Parameters: Supports options such as textTruncate, startSec, lengthSec, useFixedLengthSec, embeddingOption, and minClipSec to control how embeddings are computed over video segments.
- Asynchronous Processing & Storage: Integrates with asynchronous processing pipelines (example: AWS Bedrock workflows) where embedding outputs can be stored to S3 for downstream retrieval.
- High-Dimensional Vectors: Produces embeddings suitable for semantic retrieval (commonly exposed with 1024-dimension vectors in integration examples) to enable accurate nearest-neighbor search.
- Integration with Cloud Pipelines: Used in sample integrations with AWS Bedrock and other tooling to build end-to-end embedding-based video search and agent-driven analysis.
- Multimodal embeddings covering video, audio, text and images
- Embedding generation for semantic search and downstream tasks
- Python SDK with client instantiation and index management (client = TwelveLabs(api_key=""))
- Model selection/options when creating indexes (e.g., model_name: "marengo3.0", model_options: ["visual","audio"])
- Integration with AWS Bedrock (e.g., twelvelabs.marengo-embed-2-7-v1 and references to 3.0) supporting asynchronous processing and S3 output
- Configurable temporal parameters: startSec, lengthSec, minClipSec, useFixedLengthSec
- Text handling options such as textTruncate
- Support for frame-level, shot-level, and transcript extraction in embedding pipelines
- Embeddings compatible with embedding-based search (text or image queries)
- CLI and third-party integrations (examples: s3vectors-embed-cli, strands-agents tools)
Best for
- Semantic Video Search: Enable users to search large video libraries using natural-language or image queries to find relevant clips or moments.
- Video Indexing for Applications: Create embeddings and indexes from uploaded videos to power recommendation engines, content discovery, or knowledge retrieval systems.
- Interactive Video Q&A and Agents: Power chat/video agent experiences that answer questions about video content by querying multimodal embeddings and transcripts.
- Shot- and Frame-Level Analytics: Extract and analyze shot- and frame-level embeddings and transcripts for content analysis, tagging, or video summarization.
- Enterprise Video Pipelines: Integrate Marengo into cloud workflows (e.g., AWS Bedrock + S3) for scalable, asynchronous processing of large media collections.
- Downstream Embedding Use: Use generated embeddings for clustering, similarity search, semantic retrieval, and as inputs to other ML pipelines (recommendation, moderation).
- Semantic video search using text or image queries
- Creating searchable embeddings/indexes for large video libraries
- Automated video analysis pipelines producing frame/shot embeddings and transcripts
- Agent-driven video QA and interactive analysis (chat_video/search_video integrations)
- Integration into Bedrock-based workflows to store embedding outputs to S3 for downstream retrieval