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Editorial comparison for operators. Ratings are sample data unless verified.
| Attribute | Together AI | LlamaIndex |
|---|---|---|
| Type | tool | tool |
| Summary | Together AI provides serverless LLM inference for open models and custom fine-tuned variants, enabling builders to ship AI features without managing infrastructure. | Open-source data framework for connecting custom data sources to LLM applications. LlamaIndex simplifies RAG pipeline construction and LLM data indexing. |
| Pricing | usage based · See vendor site — sample data | free · See vendor site — sample data |
| Free trial | Yes | No / not listed |
| API | Yes | Yes |
| Open source | No | Yes |
| Editor rating | — | — |
| Categories | AI Infrastructure, LLM Platforms, API Services | AI Infrastructure, Data & Analytics, Developer Tools |
| Key features | Serverless API access to 100+ open-source and proprietary models (verify current catalog on vendor site) · Per-token pricing with batch inference discounts for non-real-time workloads · Custom model fine-tuning and deployment on shared infrastructure · Streaming responses for real-time chat and generation features · REST and Python SDK interfaces with familiar LLM API patterns | 100+ pre-built data connectors for loading from files, databases, APIs, and cloud storage · Flexible document chunking and parsing with support for multiple file formats · Multiple index types including vector, keyword, tree, and SQL indices · Query engines with automatic routing and response synthesis · Agent framework for multi-step reasoning and tool use |
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