Google · Open weights

Gemma 4 26B A4B Chimera X Heretic

Added Oct 8, 2026Open weights

Chimera X Heretic is a Gemma 4 26B A4B multimodal mixture-of-experts fine-tune for creative writing, expressive dialogue, and roleplay.

Reasoning
Tools
Vision

Input: Text, Images
Output: Text
Discovery tier: Open weights

Pricing

USD per 1M tokens

Input: $0.12
Output: $0.38
Cache read: $0.06

Reference prices as published by the model provider. API example

Specifications

Context window: 262.1K
Max output: 32.8K
Average output (7 days): 315 tokens; Longer than 34% of 473 models

Side by side

Compare models

Put Gemma 4 26B A4B Chimera X Heretic next to up to three other models. The comparison stays in the link, so you can share it.

TryThe Drummer Cydonia 24B v4.3 Qwen3.6 35B A3B Thinking GLM 4.5 Air All 3

Public evaluations

Benchmarks

There are no public benchmark results for Gemma 4 26B A4B Chimera X Heretic yet.

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Throughput: 72.1 tok/s; Faster than 49% of 257 models
Time to first token: 2.1 s; Quicker than 73% of 257 models
Prompt cache hits: 20.9%; About $0.11 per 1M input tokens with caching
Request success (24h): 97.7%; Reliable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 72.2%

Healthy (98% or more)
Degraded (90–98%)
Down (under 90%)
No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart

curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemma-4-26b-a4b-it-chimeraxheretic",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'

import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="gemma-4-26b-a4b-it-chimeraxheretic",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Google

Other Google models, starting with the same family.