Confidential AI API: Secure LLM Inference at Scale

This page shows the prices for all available models on the Prem API platform. All prices are pay-as-you-go, by usage. Prem serves two inference modes:

Confidential inference — the local proxy encrypts the inference end-to-end. See the Confidential Proxy guide.
Zero Data Retention (ZDR) — the gateway at https://gateway.prem.io serves the inference without state. You need no client KEK and no local proxy. See the ZDR overview.

The tables that follow list the top models for each mode. The catalog changes with your API key and with the inference mode. Use GET /rvenc/models to get the confidential catalog and GET /openai/models to get the ZDR catalog.

Confidential models

These are the top models available for confidential inference. Prices are per 1M tokens and match the price_config field of the models endpoint.

Model	API ID	Type	Modalities	Pricing
Qwen 3.8 · 27B (weights)	`qwen38-27b`	Chat	Text, Image, Video	$0.30 in · $2.40 out / 1M tokens
DeepGram General Nova 3	`deepgram/general-nova-3`	Audio Transcription	Audio	$0.05 / audio minute
DeepSeek v4 Flash (Abliterated) · 304B (weights)	`deepseek-v4-flash`	Chat	Text	$0.16 in · $0.32 out / 1M tokens

Qwen 3.8: A sparse Mixture-of-Experts architecture. It gives frontier-level intelligence with low latency.
DeepGram General Nova 3: A general-purpose ASR model with the highest performance. Use it for meetings, captions, and multilingual audio.
DeepSeek v4 Flash (Abliterated): A fast, long-context model for coding, agentic workflows, and complex reasoning, with no built-in content filters, giving you an unrestricted model for building and experimentation.

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ZDR models

These are the top models available for Zero Data Retention inference. Prices are per 1M tokens and match the price_config field of the models endpoint.

Model	API ID	Type	Modalities	Pricing	Region
Qwen 3.8 2.4T A95B	`qwen38-24t`	Chat	Text	$2.50 in · $6.00 out / 1M tokens	`eu`
DeepSeek V4 Pro	`deepseek-v4-pro`	Chat	Text	$1.75 in · $3.50 out / 1M tokens	`eu`, `uk`
GLM 5.2	`glm-5.2`	Chat	Text	$1.50 in · $4.50 out / 1M tokens	`eu`, `uk`
Kimi K3	`kimi-k3`	Chat	Text	$3.50 in · $15.25 out / 1M tokens	`eu`
DeepSeek V4 Flash	`deepseek-v4-flash`	Chat	Text	$0.25 in · $0.30 out / 1M tokens	`eu`

Try in Playground

The prices above match the price_config field of the models endpoint. The regions field of GET /openai/models gives the current region of each model.

You get access to all models by an OpenAI-compatible API. See the Quickstart guide to start.

Get the models your key can use

The catalog changes with your API key and with the inference mode. A model that is available for ZDR is not always available for confidential inference. The opposite is also true. Call the models endpoint with the same API key that you use for chat requests.

GET /rvenc/models returns the confidential catalog.
GET /openai/models returns the ZDR catalog.

curl https://gateway.prem.io/rvenc/models \
  -H "Authorization: Bearer $PREM_API_KEY"

curl https://gateway.prem.io/openai/models \
  -H "Authorization: Bearer $PREM_API_KEY"

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["PREM_API_KEY"],
    base_url="https://gateway.prem.io/openai",
)

for model in client.models.list():
    print(model.id, model.type, model.regions)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.PREM_API_KEY!,
  baseURL: "https://gateway.prem.io/openai",
});

for await (const model of client.models.list()) {
  console.log(model.id);
}

The GET /openai/models endpoint uses the OpenAI models list format. The standard client.models.list() method of an OpenAI SDK reads it. Prem adds more fields to each entry, and an OpenAI SDK ignores them.

Filter the catalog by the type of the model:

curl "https://gateway.prem.io/openai/models?type=CHAT" \
  -H "Authorization: Bearer $PREM_API_KEY"

The type parameter accepts these values: CHAT and AUDIO_TRANSCRIPTION. Send the exact model ID from the response. Do not add a provider prefix or a slash.

The response fields

The response has "object": "list" and an array in data. Each entry has these fields:

Field	Description
`id`	The model ID to send in a chat request
`object`	Always `model`
`created`	The Unix timestamp of the moment that Prem added the model
`owned_by`	The owner of the model
`name`	The display name of the model
`description`	A short description of the model
`type`	`CHAT` or `AUDIO_TRANSCRIPTION`
`input_modalities`	The input types that the model accepts
`price_config`	The price for each mode and region
`regions`	The regions that give this model for the endpoint’s mode
`usage_mode`	The method that the platform uses to meter the model

The first four fields are the standard OpenAI fields. The other fields are Prem fields, and an OpenAI SDK ignores them.

Regions

The regions field shows the regions that give the model. The endpoint that you call decides the mode:

GET /openai/models returns the ZDR catalog. The regions field shows the ZDR regions.
GET /rvenc/models returns the confidential catalog. The regions field shows the confidential regions.

{
  "regions": ["eu", "uk"]
}

The ZDR partners operate in the European Union (eu), Switzerland (ch), and the United Kingdom (uk). The regions for one model can be different from the regions for another model. The regions field is the current source of truth for each model.

Mode errors

The API rejects a model that the mode you chose does not give. The response has a 400 status and one of these messages:

Message	Cause
`Model {model} is available for encrypted inference only.`	You sent a confidential-only model to `/openai/chat/completions`. Use the confidential routes.
`Model {model} is not available for confidential inference.`	You sent a ZDR-only model to a confidential route. Use `/openai/chat/completions`.

Call the models endpoint again after you change the API key. Then remove each model that the new key does not return.

Deployment Strategies

Feature	Explorer	Developer	Enterprise
Rate Limit	10 req / sec	Scalable	Dedicated
API Deployment	Multi-Tenant APIs	Dedicated APIs	Dedicated APIs
Model Deployment	Curated Models	Custom Model Choice	Custom Model Choice
Infrastructure	Shared Instances	Dedicated Instances	air-gapped / on-prem

See the Rate Limits page for the rate limits of each tier. The page includes token limits (TPM), audio processing limits, and concurrent request limits.

Prem serves all APIs in agreement with its security model. For more information, see the Security Model page.

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Quickstart

Make your first API call in minutes.

ZDR Overview

Set up your first ZDR request.

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Contact Prem for enterprise features, custom models, or dedicated infrastructure.

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Zero Data Retention

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Models & Pricing

Confidential models

ZDR models

Get the models your key can use

The response fields

Regions

Mode errors

Deployment Strategies

Get Started

Create Account

Quickstart

ZDR Overview

Contact Sales

​Confidential models

​ZDR models

​Get the models your key can use

​The response fields

​Regions

​Mode errors

​Deployment Strategies

​Get Started

Create Account

Quickstart

ZDR Overview

Contact Sales

Confidential models

ZDR models

Get the models your key can use

The response fields

Regions

Mode errors

Deployment Strategies

Get Started