Text Embedding 3 Small API

OpenAI's efficient text embedding model for semantic search and similarity tasks at lower cost.

Modalities
TextText
Input price
$0.02per 1M tokens
Model type
Embeddings
Released
Dec 12, 2025

Text Embedding 3 Small overview

Text Embedding 3 Small specs

Model ID
openai/text-embedding-3-small
Developer
OpenAI
Input
Text
Output
Text
Endpoint
POST https://api.aimlapi.com/v1/embeddings

Basic Information

  • Model Name: text-embedding-3-small
  • Release Date: January 25, 2024
  • Version: text-embedding-3-small
  • Overview:text-embedding-3-small is an efficient and compact embedding model designed to enhance performance over its predecessor, text-embedding-ada-002. It transforms text into numerical representations that can be easily processed by machine learning models.
  • Key Features:
    • Improved Performance: Achieves higher scores on benchmarks for multi-language retrieval (MIRACL) and English tasks (MTEB).
    • Cost Efficiency: Offers a 5x reduction in cost compared to text-embedding-ada-002.
    • Compact Size: Embedding size of 512 dimensions, suitable for memory and storage-constrained environments.
  • Intended Use:
    • Search: Enhance search algorithms by ranking results based on relevance.
    • Clustering: Group similar text strings for data analysis.
    • Recommendations: Suggest related items based on text similarity.
    • Anomaly Detection: Identify outliers in data.
    • Diversity Measurement: Analyze the diversity of text data.
    • Classification: Classify text strings by their most similar labels.
  • Language Support:Supports multiple languages, improving accessibility and usability across diverse linguistic datasets.

Technical Details

  • Architecture:Utilizes a transformer-based architecture optimized for efficiency and performance.
  • Training Data:Trained on a diverse set of text sources to capture a wide range of linguistic patterns and semantics.
  • Data Source and Size:Extensive dataset comprising millions of text documents, ensuring a broad understanding of language.
  • Diversity and Bias:Training data is selected to minimize bias and ensure robust performance across different demographics and use cases.

Performance Metrics

  • Comparison to Other Models:
    • MIRACL Score: Improved from 31.4% (ada-002) to 44.0%.
    • MTEB Score: Increased from 61.0% (ada-002) to 62.3%.
  • Accuracy:Demonstrates higher accuracy in both multi-language and English-specific benchmarks.
  • Speed:More efficient than previous models, reducing latency and computational requirements.
  • Robustness:Handles diverse inputs effectively, ensuring reliable performance across various applications.

Use cases

Embed documents and queries to build content search systems across languages (web, enterprise, knowledge bases).

Generate vector representations for content classification, similarity analysis, and recommendation systems.

Use embedding distances to flag outliers in text data, useful in logging, moderation, or compliance monitoring.

Combine dense embeddings with vector databases for retrieval-augmented workflows in chatbots, summarization, or QA systems.

Multilingual vector applications

Implement multilingual chatbots, classification, search and recommendations benefiting from cross-language embeddings.

Text Embedding 3 Small API pricing

Text Embedding 3 Small pricing in US dollars
UsagePriceUnit
Input$0.021M tokens

Prices from the AI/ML API price list, checked on Nov 4, 2026.

How to use the Text Embedding 3 Small API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/embeddings' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "openai/text-embedding-3-small",
  "input": "The quick brown fox jumps over the lazy dog."
}'

Text Embedding 3 Small FAQ

What inputs and outputs does Text Embedding 3 Small support?

Text Embedding 3 Small takes text as input and returns embedding.

When was Text Embedding 3 Small released?

Text Embedding 3 Small became available on December 12, 2025.

How much does Text Embedding 3 Small cost?

Text Embedding 3 Small costs $0.02 per 1M input tokens on AI/ML API, billed as you go with no subscription.

Who created Text Embedding 3 Small?

Text Embedding 3 Small was built by OpenAI.

How do I call Text Embedding 3 Small on AI/ML API?

Send a request to https://api.aimlapi.com/v1/embeddings with openai/text-embedding-3-small as the model id.

Is Text Embedding 3 Small available through a single API key?

Yes. Text Embedding 3 Small is served through AI/ML API, so the same key and endpoint format used for other models applies.

What is Text Embedding 3 Small designed for?

It is OpenAI's embedding model built for semantic search and similarity tasks, offered at a lower cost.

What is the Text Embedding 3 Small model ID?

Use openai/text-embedding-3-small as the model parameter. Requests go to https://api.aimlapi.com/v1/embeddings with your AI/ML API key.

Start building with Text Embedding 3 Small

Text Embedding 3 Small API

openai/text-embedding-3-small

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/embeddings' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "openai/text-embedding-3-small",
  "input": "The quick brown fox jumps over the lazy dog."
}'