OpenAI Embeddings
https://platform.openai.com/docs/guides/embeddings
OpenAI's hosted embedding API — text-embedding-3-small, text-embedding-3-large. Most widely used commercial embedding API in OSS RAG/memory stacks.
Active · Verified 2026-10-27 · fresh as of 2026-10-27 · 19 cited facts, 1 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- OpenAI embedding API vendor fix
- Tier
- T1
- Section
- Embedding & reranker services
- Latest release
- v3.39.0 (2026-10-26) — openai (PyPI) registry fix
- License
- proprietary; SDKs Apache-2.0 repo fix
- Pricing
- text-embedding-3-small $0.02 per 1M tokens; text-embedding-3-large $0.13 per 1M tokens vendor fix
- Funding
- searched not found fix
- Freshness
- 2026-10-27 fix
- Layer
- model-infra repo fix
- Licensing
- commercial repo fix
- SDK languages
- csharp, go, java, python, rest, ruby, typescript vendor fix
- Compliance
- ccpa, csa-star, gdpr, iso27001, iso27017, iso27018, iso27701, iso42001, soc2-type2, soc3 vendor fix
- Developer activity
- OpenRank 25.09 (12-mo avg 26.92) · 107 participants — 2026-09 third-party fix
When to use
Optimised for: searched not found
Anti-fit: searched not found
Pros & cons
Pros
searched not found
Cons
searched not found
Claims & capabilities
Default embedding choice in many LangChain/LlamaIndex tutorials.
Technical surface
- API surface
- REST API (/v1/embeddings), Python SDK, TypeScript SDK
- Backend storage
- searched not found
- Deployment
- Managed-only — OpenAI API
- Embedding model
- searched not found
- Multi-tenancy
- searched not found
- MCP
- searched not found
- A2A
- searched not found
- OpenTelemetry
- searched not found
Compare OpenAI Embeddings with…
Alternatives to OpenAI Embeddings → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other embedding & reranker services in the catalog, ranked by inbound references.
- Voyage AI (MongoDB) T1
Specialised embedding and reranker provider — voyage-3, voyage-multilingual, voyage-finance, voyage-law, voyage-code. Acquired by MongoDB Feb 2025 for $220M.
- Cohere Embed T1
Cohere's hosted embedding models, now Embed 5 (2026-09-30; Pro and Fast tiers): text, image and fused text-plus-image inputs, 100+ languages, 128K-token context, Matryoshka output dimensions from 256 to 2048 with float, int8 and binary formats. Reranker API (Rerank 5).
- Jina AI Embeddings T1
Jina AI's embedding family — jina-embeddings-v3 (multilingual), jina-clip-v2 (text+image), jina-colbert-v2. Open-weights + hosted API + ColBERT-style.
- Hugging Face Inference API (Embeddings) T1
HF's hosted Inference API and Inference Endpoints — serve any model from the Hub including the BGE/GTE/E5 embedding families.
- Sentence Transformers T1
Reimers & Gurevych's library for training sentence embeddings — substrate under most open-weight embedding models. Now under Hugging Face.
- Mistral Embed T2
Mistral AI's hosted embedding API — mistral-embed; available via Mistral La Plateforme and Azure AI.
Sources (18 cited facts, 1 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is OpenAI embedding API vendor
- What it does & what's distinct OpenAI's hosted embedding API — text-embedding-3-small, text-embedding-3-large. Most wid… vendor
- Claims / benefits Default embedding choice in many LangChain/LlamaIndex tutorials. vendor
- Created 2022-01 vendor
- Latest release v3.39.0 (2026-10-26) — openai (PyPI) registry
- License proprietary; SDKs Apache-2.0 repo
- GitHub openai/openai-python — ~32k stars, last commit 2026-10 (official Python SDK) repo
- Pricing text-embedding-3-small $0.02 per 1M tokens; text-embedding-3-large $0.13 per 1M tokens vendor
- Deployment Managed-only — OpenAI API vendor
- HQ US vendor
- API surface REST API (/v1/embeddings), Python SDK, TypeScript SDK vendor
- architecture-deployment-locus cloud vendor
- licensing-bucket commercial repo
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup model-infra repo
- developer-activity-opendigger {"activity":258.4,"as_of":"2026-09","openrank_12mo":26.92,"openrank_current":25.09,"part… third-party
- compliance-certifications ccpa,csa-star,gdpr,iso27001,iso27017,iso27018,iso27701,iso42001,soc2-type2,soc3 vendor
- sdk-languages csharp,go,java,python,rest,ruby,typescript vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-27
- License first recorded as “proprietary; SDKs Apache-2.0” source
- Latest release first recorded as “v3.39.0 (2026-10-26) — openai (PyPI)” source
- Pricing first recorded as “text-embedding-3-small $0.02 per 1M tokens; text-embedding-3-large $0.13 per 1M tokens” source
- Deployment first recorded as “Managed-only — OpenAI API” source
Related systems
Referenced by (13)
- Chroma integrates with — Chroma's docs have a OpenAI Embeddings integration page. (verified 2026-10-29)
- LanceDB integrates with — LanceDB's docs have a OpenAI Embeddings integration page. (verified 2026-10-29)
- LangChain (framework) integrates with — LangChain docs have an OpenAI embeddings integration page (OpenAIEmbeddings). (verified 2026-10-29)
- Langflow integrates with — Langflow components bundle: OpenAI embeddings component. (verified 2026-10-29)
- LlamaIndex (framework) integrates with — LlamaIndex has an official embeddings integration package llama-index-embeddings-openai in its repo. (verified 2026-10-29)
- Mem0 integrates with — Mem0 docs have an OpenAI embedder page for Mem0 open source. (verified 2026-10-29)
- Milvus integrates with — Milvus's integrations overview lists a Milvus + OpenAI Embeddings integration tutorial. (verified 2026-10-29)
- n8n (AI agent flows) integrates with — n8n built-in AI cluster node: Embeddings OpenAI node. (verified 2026-10-29)
- NVIDIA NeMo Guardrails integrates with — NeMo Guardrails docs have a OpenAI embeddings provider page. (verified 2026-10-29)
- Phidata (now Agno) integrates with — Agno ships a openai embedder (agno.knowledge.embedder.openai). (verified 2026-10-29)
- Pinecone integrates with — Pinecone's integrations directory has a OpenAI Embeddings integration page. (verified 2026-10-29)
- Pydantic-AI integrates with — Pydantic AI embeddings docs list OpenAI as an embeddings provider. (verified 2026-10-29)
- Qdrant integrates with — Qdrant's documentation has a OpenAI Embeddings integration page. (verified 2026-10-29)