Free-offer comparison
Free Embedding APIs and Vector Databases
Embedding generation and vector storage are separate costs. Check whether a free offer covers the step your application needs.
Guide updated Sep 20, 2026 · Offer review and source dates appear below · Methodology
Free-offer ranking
Each row describes the provider’s recorded free offer, which may cover a different product from the category shown here. The table keeps published units separate. “Not confirmed” means we lack evidence for that detail; it does not mean the provider requires a card.
Scroll horizontally to compare every column.
| Rank | Provider | Free-access score | Recorded free offer | Access pattern | Billing/card | Offer note | Full review | Official source |
|---|---|---|---|---|---|---|---|---|
| #1 | Unstructured | 85/100 | 10K pages | One-time balance | No card confirmed | The 10,000-page allowance is provided at signup; the pricing page does not promise a monthly reset. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #2 | AI21 Labs | 85/100 | $10 credit for 3 months | One-time balance | No card confirmed | The trial credit expires three months after account creation. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #3 | Inference.net | 75/100 | Gateway requests: 1,000,000 requests per month; Tracing spans: 1,000,000 spans per month | Recurring allowance | Not confirmed | One free seat; underlying model inference is billed separately from Gateway and tracing allowances. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #4 | Cloudflare Workers AI | 75/100 | 10K neurons/day | Recurring allowance | Not confirmed | 10,000 neurons per day reset at 00:00 UTC. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #5 | Cohere | 75/100 | 1K requests/mo | Recurring allowance | Not confirmed | Trial keys are limited to 1,000 requests per month and 20 req/minute on Chat API; suitable for testing and proofs of concept but not production or commercial use | Jul 19, 2026 | View documentationAccessed Sep 13, 2026 |
| #6 | Milvus (Zilliz Cloud) | 65/100 | 5 GB | Ongoing free access | Not confirmed | Free tier on serverless cluster; paid plans start at $0.30/GB or $99/mo dedicated | Jul 17, 2026 | View pricingAccessed Sep 20, 2026 |
| #7 | Jina AI | 60/100 | 10.0M tokens | One-time balance | Not confirmed | The free token tier is labeled for non-commercial use only (CC BY-NC) on the provider page. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #8 | Pinecone | 60/100 | $300 credit for 21 days | One-time balance | Not confirmed | Starter is an ongoing $0 plan with its own resource limits. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #9 | Hugging Face | 60/100 | $0.1 credits | One-time balance | Not confirmed | The monthly $0.10 credit applies only to Hugging Face-routed Inference Providers requests, not custom provider keys. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #10 | Qdrant | 30/100 | Free tier | Introductory offer | Not confirmed | Idle free clusters are suspended after one week and deleted after four weeks unless reactivated. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #11 | Voyage AI | 30/100 | Free tier | Introductory offer | Not confirmed | Token allowances vary by model family; they are not one universal balance. | Jul 17, 2026 | View pricingAccessed Jul 17, 2026 |
| #12 | NVIDIA NIM | 25/100 | Free tier | Introductory offer | Not confirmed | Developer and downloadable NIM free use is for research, development, and testing; production requires a commercial path. | Jul 17, 2026 | Visit provider websiteAccessed Sep 13, 2026 |
| #13 | OpenAI | 25/100 | Free tier | Introductory offer | Not confirmed | The amount and duration are not publicly fixed. Applying requires a unique partner-VC referral code, product/API-use description, business contacts, and funding details; standard billing begins automatically when credits are exhausted. | Jul 17, 2026 | Visit provider websiteAccessed Jul 17, 2026 |
Why these providers appear in this order
We score each provider’s recorded free offer: up to 40 points for recurring or durable access, 20 for a confirmed no-card signup, 15 for a stated allowance, 15 for distinct evidence links, and 10 for documented terms. Missing details earn no points. Ties favor longer-lasting access, then more detailed records, then provider name. The score does not measure product quality or whether the free offer covers this category. Read the full method before treating it as a recommendation.
Which providers are included?
We include active directory records tagged for embedding APIs and databases. A tag describes a provider’s capability; its recorded free offer may cover only part of that provider’s catalog. Check the model or endpoint in the provider’s terms before building on the allowance.
See the full embedding APIs and databases category, including records excluded from this guide.