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Embedding

Text Embedding Ada 002

openai/text-embedding-ada-002

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Compare with…Added 2026
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Text Embedding Ada 002 is OpenAI's legacy embedding model, still widely deployed in existing production systems. While superseded by the Embedding 3 family in terms of quality and flexibility, Ada 002 remains available for backward compatibility and systems that depend on its specific vector characteristics.

Many organizations continue to use Ada 002 because migrating embedding models requires re-embedding entire document collections — a significant operational effort for large-scale deployments.

Key Features

1536-dimensional embeddings

Proven reliability across millions of deployments

Backward compatibility for existing systems

8191 token input limit

Well-understood performance characteristics

Ideal Use Cases

1.

Legacy system maintenance and compatibility

2.

Existing RAG pipelines not ready for migration

3.

Applications with Ada 002-specific optimizations

4.

Stable production embeddings with known behavior

Technical Specifications

Dimensions1536
Max Input8191 tokens
ModalityText → Embedding
ProviderOpenAI
CategoryEmbedding
StatusLegacy (still supported)

API Usage

1curl -X POST https://api.vincony.com/v1/chat/completions \
2  -H "Authorization: Bearer YOUR_API_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "openai/text-embedding-ada-002",
6    "messages": [
7      { "role": "user", "content": "Hello, Text Embedding Ada 002!" }
8    ]
9  }'

Replace YOUR_API_KEY with your Vincony API key. OpenAI-compatible endpoint — works with any OpenAI SDK.

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