Private Models

Phala: Gemma-4 26B-A4B Uncensored (Heretic)

Trusted Execution Environment
phala/gemma-4-26b-a4b-uncensored
CompareTry this model

Uncensored "Heretic" variant of google/gemma-4-26B-A4B-it created using Heretic v1.2.0 with the Arbitrary-Rank Ablation (ARA) method and row-norm preservation. Refusals drop from 100/100 to 11/100 with KL divergence 0.0499 vs the base model. The base Gemma 4 26B A4B is a Mixture-of-Experts model with 25.2B total / 3.8B active parameters (8 active / 128 total experts), 30-layer transformer with hybrid local sliding (1024) + global attention, supporting a 256K context window. Natively multimodal (text + images, variable aspect ratios). Strong on coding, reasoning, function calling, with native system prompt support across 35+ languages. Served on Phala in TDX-attested H200 enclave with end-to-end ECDSA response signing; vLLM-compatible FP8-Static quantization by cloud19 (router excluded from quantization).

Modalities
TextImagetoText
In / out price
$0.15 / $0.70per 1M
Context
66K
Released
May 23, 2026

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

Call this model through RedPill's OpenAI-compatible API.

  1. Create an API key
  2. Set REDPILL_API_KEY
  3. Run the request
  4. Verify the response
Create keyDocumentation
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.chat.completions.create({
  model: "phala/gemma-4-26b-a4b-uncensored",
  messages: [{ role: "user", content: "Say hello." }],
});

Check privacy evidence

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

  1. 1
    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, ... }, ... },
  ...
}
  2. 2
    Send a private request

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

    curl -fsS -i "https://tee.redpill.ai/v1/chat/completions" \
  -H "Authorization: Bearer $REDPILL_API_KEY" --json '{"model":"phala/gemma-4-26b-a4b-uncensored","messages":[{"role":"user","content":"Hello"}],"provider":{"aci_verified":true}}'

    Output

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

{
  "model": "phala/gemma-4-26b-a4b-uncensored",
  ...
}
  3. 3
    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:..." }
  ],
  ...
}
  4. 4
    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

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