Sentence Transformers: all-MiniLM-L6-v2

sentence-transformers/all-minilm-l6-v2

The all-MiniLM-L6-v2 embedding model maps sentences and short paragraphs into a 384-dimensional dense vector space, enabling high-quality semantic representations that are ideal for downstream tasks such as information retrieval, clustering, similarity scoring, and text ranking.

Modalities: TexttoEmbeddings
Price: $0.005per 1M
Context: 512
Released: Nov 25, 2025

Providers

RedPill routes this private model across verified providers with automatic fallbacks. Pricing is unified, so you pay the same price no matter which provider serves your request, while live metrics show first-token latency, speed, and uptime.


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Gateway API

Generate embeddings with this model through RedPill's OpenAI-compatible API.

Create an API key
Set REDPILL_API_KEY
Run the request
Verify the response

Create key Documentation

Working with agentsConnect RedPill to agent frameworks and runtimes.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://tee.redpill.ai/v1",
  apiKey: process.env.REDPILL_API_KEY,
});

const response = await client.embeddings.create({
  model: "sentence-transformers/all-minilm-l6-v2",
  input: "Private AI keeps prompts confidential.",
});

Check privacy evidence

Follow the receipt from the gateway response to its verified session using four curl requests.

Check the gateway

Fetch the current TEE evidence and check that the keyset has not expired.

curl -fsS "https://tee.redpill.ai/v1/aci/attestation" \
  -H "Authorization: Bearer $REDPILL_API_KEY"

Output

{
  "api_version": "aci/1",
  "workload_keyset_digest": "sha256:4f3dc45e...",
  "attestation": { "workload_keyset": { "not_after": 1790498751, ... }, ... },
  ...
}

Send a private request

The response header contains the receipt ID, not the receipt itself.

curl -fsS -i "https://tee.redpill.ai/v1/embeddings" \
  -H "Authorization: Bearer $REDPILL_API_KEY" --json '{"model":"sentence-transformers/all-minilm-l6-v2","input":"Hello","provider":{"aci_verified":true}}'

Output

HTTP/2 200
x-receipt-id: rcpt-e0eefe63b3673e2a5984951f
...

{
  "model": "sentence-transformers/all-minilm-l6-v2",
  ...
}

Inspect the receipt

Paste the x-receipt-id above and compare its keyset digest with step 1.

curl -fsS "https://tee.redpill.ai/v1/aci/receipts/REPLACE_WITH_RECEIPT_ID" \
  -H "Authorization: Bearer $REDPILL_API_KEY"

Output

{
  "api_version": "aci/1",
  "receipt_id": "rcpt-e0eefe63b3673e2a5984951f",
  "workload_keyset_digest": "sha256:4f3dc45e...",
  "event_log": [
    ...,
    { "type": "upstream.verified", "session_id": "63c5a08de14e5c5253e6fb29271151f40621beb83b552ccca65772772856053f", "result": "verified", "required": true },
    { "type": "response.returned", "body_hash": "sha256:..." }
  ],
  ...
}

Inspect the session

Copy session_id from the upstream.verified event above, then fetch that session.

curl -fsS "https://tee.redpill.ai/v1/aci/sessions/PASTE_SESSION_ID_FROM_RECEIPT" \
  -H "Authorization: Bearer $REDPILL_API_KEY"

Output

{
  "api_version": "aci/1",
  "upstream_name": "...",
  "verifier_id": "...",
  "claims": { "tee_attested": { "status": "asserted", ... }, ... },
  ...
}

Full cryptographic verification guide

Sentence Transformers: all-MiniLM-L6-v2

Providers

Gateway API

Check privacy evidence

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